/* ==========================================================================
   Nerdearla 2025 - Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Nerdearla Brand Colors */
    --color-amarillo: #FFBA00;
    --color-verde: #00ACA8;
    --color-rojo: #FF323C;
    --color-negro: #000000;

    /* Colors */
    --color-bg: #000000;
    --color-bg-alt: #0a0a0a;
    --color-bg-card: #111111;
    --color-surface: #1a1a1a;

    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #707070;

    --color-primary: var(--color-rojo);
    --color-primary-light: #FF5A62;
    --color-secondary: var(--color-verde);

    --color-accent-pink: var(--color-rojo);
    --color-accent-orange: var(--color-amarillo);
    --color-accent-green: var(--color-verde);
    --color-accent-blue: var(--color-verde);
    --color-accent-yellow: var(--color-amarillo);
    --color-accent-red: var(--color-rojo);
    --color-accent-teal: var(--color-verde);

    /* Gradients - Using Nerdearla brand colors */
    --gradient-primary: linear-gradient(135deg, var(--color-rojo) 0%, var(--color-amarillo) 50%, var(--color-verde) 100%);
    --gradient-hero: linear-gradient(180deg, rgba(255, 50, 60, 0.15) 0%, transparent 50%);
    --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);

    /* Typography - Nerdearla Brand */
    --font-display: 'Rift Soft', 'Arial Black', sans-serif;
    --font-body: 'Roboto', sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(255, 50, 60, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

button,
input {
    font-family: inherit;
    font-size: inherit;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section {
    padding: var(--space-20) 0;
}

.section--dark {
    background-color: var(--color-bg-alt);
}

.section--alt {
    background-color: var(--color-bg-card);
}

.section--light {
    background-color: #f5f5f5;
}

.section--light .section__tag,
.section--light .section__title {
    color: var(--color-negro);
}

.section--cta {
    background: var(--gradient-hero);
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section__header--left {
    text-align: left;
}

.section__tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary-light);
    margin-bottom: var(--space-4);
}

.section__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.section__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-rojo);
    color: white;
    border-color: var(--color-rojo);
}

.btn--primary:hover {
    background: #E62D36;
    border-color: #E62D36;
    transform: translateY(-2px);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-surface);
}

.btn--secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

.btn--outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

.btn--large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    display: flex;
    align-items: center;
}

.nav__logo-img {
    height: 36px;
    width: auto;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

/* Full logo visible by default, short logo hidden */
.nav__logo-img--full {
    display: block;
}

.nav__logo-img--short {
    display: none;
}

/* When scrolled, swap logos */
.header.scrolled .nav__logo-img--full {
    display: none;
}

.header.scrolled .nav__logo-img--short {
    display: block;
}

.logo-text {
    color: var(--color-rojo);
}

.text-highlight {
    color: var(--color-amarillo);
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav__menu {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    padding: var(--space-6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    flex-direction: column;
    gap: var(--space-4);
}

.nav__menu.active {
    display: flex;
}

.nav__link {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.nav__link:hover {
    color: var(--color-text);
}

.nav__cta {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    padding: var(--space-3) var(--space-5);
    background: var(--color-rojo);
    border-radius: var(--radius-lg);
    color: white;
    transition: all var(--transition-base);
}

.nav__cta:hover {
    background: #E62D36;
    transform: translateY(-2px);
}

/* Desktop Navigation */
@media (min-width: 1024px) {
    .nav__toggle {
        display: none;
    }

    .nav__menu {
        display: flex;
        position: static;
        flex-direction: row;
        align-items: center;
        gap: var(--space-8);
        padding: 0;
        background: transparent;
        border: none;
    }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero__background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__video {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero__video iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    min-width: 177.77vh;
    /* 16:9 aspect ratio */
    min-height: 56.25vw;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--space-8) var(--space-6);
}

.hero__badge {
    display: inline-block;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 50, 60, 0.2);
    border: 1px solid rgba(255, 50, 60, 0.3);
    border-radius: var(--radius-full);
    color: var(--color-primary-light);
    margin-bottom: var(--space-6);
}

.hero__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.hero__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
    margin-bottom: var(--space-12);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    max-width: 600px;
    margin: 0 auto;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.stat__label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

.hero__scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-indicator span {
    position: absolute;
    top: 8px;
    left: 50%;
    width: 6px;
    height: 6px;
    margin-left: -3px;
    background: var(--color-primary-light);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* Hero Responsive */
@media (min-width: 640px) {
    .hero__title {
        font-size: var(--text-5xl);
    }

    .hero__stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .hero__title {
        font-size: var(--text-6xl);
    }

    .stat__number {
        font-size: var(--text-4xl);
    }
}

/* --------------------------------------------------------------------------
   Events Section
   -------------------------------------------------------------------------- */
.events {
    background: var(--color-bg-alt);
    padding: var(--space-12) 0;
}

.events__grid {
    display: grid;
    gap: var(--space-4);
}

.event-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    text-decoration: none;
    transition: all var(--transition-base);
}

.event-card:hover {
    border-color: var(--color-rojo);
    transform: translateX(8px);
}

.event-card--featured {
    background: linear-gradient(135deg, rgba(255, 50, 60, 0.1) 0%, rgba(255, 186, 0, 0.05) 100%);
    border-color: var(--color-rojo);
}

.event-card__flag {
    font-size: 3rem;
    line-height: 1;
}

.event-card__content {
    flex: 1;
}

.event-card__city {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.event-card__date {
    font-size: var(--text-base);
    color: var(--color-amarillo);
    font-weight: 500;
}

.event-card__arrow {
    font-size: var(--text-2xl);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.event-card:hover .event-card__arrow {
    color: var(--color-rojo);
    transform: translateX(4px);
}

@media (min-width: 768px) {
    .events__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .event-card {
        flex-direction: column;
        text-align: center;
        padding: var(--space-8);
    }

    .event-card:hover {
        transform: translateY(-8px);
    }

    .event-card__flag {
        font-size: 4rem;
        margin-bottom: var(--space-4);
    }

    .event-card__arrow {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about__grid {
    display: grid;
    gap: var(--space-12);
}

.about__content {
    max-width: 600px;
}

.about__text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.about__text strong {
    color: var(--color-text);
}

.about__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.feature {
    display: flex;
    gap: var(--space-4);
}

.feature__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 50, 60, 0.15);
    border-radius: var(--radius-lg);
    color: var(--color-primary-light);
}

.feature__icon svg {
    width: 24px;
    height: 24px;
}

.feature__content h3 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.feature__content p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.about__visual {
    display: none;
}

.about__image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.about__image {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    min-height: 200px;
}

.about__image--1 {
    grid-column: span 2;
    min-height: 250px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-pink) 100%);
    opacity: 0.6;
}

.about__image--2,
.about__image--3 {
    background: var(--color-surface);
}

@media (min-width: 1024px) {
    .about__grid {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }

    .about__visual {
        display: block;
    }
}

/* --------------------------------------------------------------------------
   Impact Section
   -------------------------------------------------------------------------- */
.impact__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.impact__item {
    text-align: center;
}

.impact__number {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--color-amarillo);
    line-height: 1;
}

.impact__plus {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-primary-light);
}

.impact__label {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
}

.impact__countries {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.impact__country {
    font-family: var(--font-display);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.impact__separator {
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .impact__grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .impact__number {
        font-size: var(--text-6xl);
    }
}

/* --------------------------------------------------------------------------
   Speakers Section
   -------------------------------------------------------------------------- */
.speakers__grid {
    display: grid;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.speaker-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.speaker-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 50, 60, 0.3);
    box-shadow: var(--shadow-lg);
}

.speaker-card__image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-alt) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.speaker-card__placeholder {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-text-muted);
}

.speaker-card__content {
    padding: var(--space-6);
}

.speaker-card__badge {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-1) var(--space-2);
    background: rgba(255, 50, 60, 0.2);
    color: var(--color-primary-light);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-3);
}

.speaker-card__name {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.speaker-card__role {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}

.speaker-card__bio {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.speaker-card--featured {
    background: linear-gradient(135deg, rgba(255, 50, 60, 0.1) 0%, rgba(255, 186, 0, 0.1) 100%);
    border-color: rgba(255, 50, 60, 0.2);
}

.speakers__cta {
    text-align: center;
}

@media (min-width: 768px) {
    .speakers__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .speaker-card--featured {
        grid-column: span 1;
    }
}

/* --------------------------------------------------------------------------
   Testimonials Section
   -------------------------------------------------------------------------- */
.testimonials__carousel {
    position: relative;
    overflow: hidden;
}

.testimonials__track {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-card {
    flex: 0 0 100%;
    padding: var(--space-8);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    margin: 0 var(--space-2);
    box-sizing: border-box;
}

.testimonial-card__quote {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 500;
    font-style: normal;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: var(--space-6);
    position: relative;
}

.testimonial-card__quote::before {
    content: '"';
    font-size: 4rem;
    color: var(--color-rojo);
    position: absolute;
    top: -1rem;
    left: -0.5rem;
    opacity: 0.3;
    font-family: Georgia, serif;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.testimonial-card__avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-rojo) 0%, var(--color-amarillo) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-lg);
    color: white;
}

.testimonial-card__info {
    display: flex;
    flex-direction: column;
}

.testimonial-card__name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--text-base);
    color: var(--color-text);
}

.testimonial-card__role {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.testimonials__nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.testimonials__btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-surface);
    background: transparent;
    color: var(--color-text);
    font-size: var(--text-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.testimonials__btn:hover {
    border-color: var(--color-rojo);
    color: var(--color-rojo);
}

.testimonials__dots {
    display: flex;
    gap: var(--space-2);
}

.testimonials__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-surface);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.testimonials__dot.active,
.testimonials__dot:hover {
    background: var(--color-rojo);
}

@media (min-width: 768px) {
    .testimonial-card {
        flex: 0 0 50%;
    }

    .testimonial-card__quote {
        font-size: var(--text-2xl);
    }
}

@media (min-width: 1024px) {
    .testimonial-card {
        flex: 0 0 50%;
        margin: 0 var(--space-4);
    }
}

/* --------------------------------------------------------------------------
   Tracks Section
   -------------------------------------------------------------------------- */
.tracks__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.track-card {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.track-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.1);
}

.track-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.track-card__icon svg {
    width: 24px;
    height: 24px;
}

.track-card[data-color="blue"] .track-card__icon {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-accent-blue);
}

.track-card[data-color="purple"] .track-card__icon {
    background: rgba(255, 50, 60, 0.15);
    color: var(--color-primary);
}

.track-card[data-color="pink"] .track-card__icon {
    background: rgba(255, 186, 0, 0.15);
    color: var(--color-accent-pink);
}

.track-card[data-color="red"] .track-card__icon {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-accent-red);
}

.track-card[data-color="green"] .track-card__icon {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-accent-green);
}

.track-card[data-color="orange"] .track-card__icon {
    background: rgba(249, 115, 22, 0.15);
    color: var(--color-accent-orange);
}

.track-card[data-color="teal"] .track-card__icon {
    background: rgba(20, 184, 166, 0.15);
    color: var(--color-accent-teal);
}

.track-card[data-color="yellow"] .track-card__icon {
    background: rgba(234, 179, 8, 0.15);
    color: var(--color-accent-yellow);
}

.track-card__title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.track-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.tracks__more {
    text-align: center;
    margin-top: var(--space-8);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

@media (min-width: 768px) {
    .tracks__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* --------------------------------------------------------------------------
   Agenda Section
   -------------------------------------------------------------------------- */
.agenda__timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-width: 700px;
    margin: 0 auto var(--space-8);
}

.agenda__day {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-6);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.agenda__day:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.agenda__day--highlight {
    background: linear-gradient(135deg, rgba(255, 50, 60, 0.1) 0%, rgba(255, 186, 0, 0.05) 100%);
    border-color: rgba(255, 50, 60, 0.2);
}

.agenda__date {
    flex-shrink: 0;
    text-align: center;
    min-width: 60px;
}

.agenda__day-name {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.agenda__day-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-text);
}

.agenda__info h3 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.agenda__info p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.agenda__badge {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

.agenda__badge--virtual {
    background: rgba(0, 172, 168, 0.15);
    color: var(--color-secondary);
}

.agenda__badge--hybrid {
    background: rgba(255, 50, 60, 0.15);
    color: var(--color-primary-light);
}

.agenda__cta {
    text-align: center;
}

/* --------------------------------------------------------------------------
   Sponsors Section
   -------------------------------------------------------------------------- */
.sponsors__value {
    margin-bottom: var(--space-16);
}

.sponsors__value-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-8);
}

.sponsors__benefits {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.benefit-card {
    background: var(--color-bg);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.benefit-card__number {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-verde);
    margin-bottom: var(--space-2);
}

.benefit-card__title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.benefit-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.sponsors__tiers {
    margin-bottom: var(--space-16);
}

.sponsors__tiers-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-8);
}

.sponsors__tiers-grid {
    display: grid;
    gap: var(--space-6);
}

.tier-card {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tier-card__header {
    padding: var(--space-4) var(--space-6);
    text-align: center;
}

.tier-card__name {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
}

.tier-card--platinum .tier-card__header {
    background: linear-gradient(135deg, #e5e4e2 0%, #a3a3a3 100%);
    color: #1a1a1a;
}

.tier-card--gold .tier-card__header {
    background: linear-gradient(135deg, #ffd700 0%, #b8860b 100%);
    color: #1a1a1a;
}

.tier-card--silver .tier-card__header {
    background: linear-gradient(135deg, #c0c0c0 0%, #808080 100%);
    color: #1a1a1a;
}

.tier-card__benefits {
    padding: var(--space-6);
}

.tier-card__benefits li {
    padding: var(--space-2) 0;
    padding-left: var(--space-6);
    position: relative;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

.tier-card__benefits li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300ACA8' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E") center/contain no-repeat;
}

.sponsors__current {
    margin-bottom: var(--space-12);
}

.sponsors__current-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-10);
}

.section--light .sponsors__current-title {
    color: var(--color-negro);
}

.sponsors__tier {
    margin-bottom: var(--space-8);
}

.sponsors__tier-label {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: var(--space-4);
}

.section--light .sponsors__tier-label {
    color: #666;
}

.sponsors__logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-6);
}

.sponsor-logo {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    object-fit: contain;
}

.sponsor-logo:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.section--light .sponsor-logo {
    background: transparent;
    border: none;
    padding: var(--space-2);
}

.section--light .sponsor-logo:hover {
    border: none;
    box-shadow: none;
    transform: scale(1.08);
}

/* Adamantium - Largest */
.sponsors__logos--adamantium .sponsor-logo {
    height: 100px;
    width: auto;
    max-width: 280px;
    padding: var(--space-6);
}

/* Diamond */
.sponsors__logos--diamond .sponsor-logo {
    height: 80px;
    width: auto;
    max-width: 220px;
    padding: var(--space-5);
}

/* Platinum */
.sponsors__logos--platinum .sponsor-logo {
    height: 70px;
    width: auto;
    max-width: 180px;
    padding: var(--space-4);
}

/* Gold */
.sponsors__logos--gold .sponsor-logo {
    height: 60px;
    width: auto;
    max-width: 160px;
    padding: var(--space-4);
}

/* Silver */
.sponsors__logos--silver .sponsor-logo {
    height: 50px;
    width: auto;
    max-width: 140px;
    padding: var(--space-3);
}

/* Bronze - Smallest */
.sponsors__logos--bronze .sponsor-logo {
    height: 40px;
    width: auto;
    max-width: 120px;
    padding: var(--space-3);
}

@media (min-width: 768px) {
    .sponsors__logos--adamantium .sponsor-logo {
        height: 120px;
        max-width: 320px;
    }

    .sponsors__logos--diamond .sponsor-logo {
        height: 100px;
        max-width: 260px;
    }

    .sponsors__logos--platinum .sponsor-logo {
        height: 80px;
        max-width: 200px;
    }

    .sponsors__logos--gold .sponsor-logo {
        height: 70px;
        max-width: 180px;
    }

    .sponsors__logos--silver .sponsor-logo {
        height: 60px;
        max-width: 160px;
    }

    .sponsors__logos--bronze .sponsor-logo {
        height: 50px;
        max-width: 140px;
    }
}

.sponsors__cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
}

@media (min-width: 768px) {
    .sponsors__benefits {
        grid-template-columns: repeat(4, 1fr);
    }

    .sponsors__tiers-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .sponsors__logos {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* --------------------------------------------------------------------------
   Location Section
   -------------------------------------------------------------------------- */
.location__grid {
    display: grid;
    gap: var(--space-8);
}

.location__content {
    max-width: 500px;
}

.location__address {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.location__description {
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
}

.location__details {
    margin-bottom: var(--space-6);
}

.location__detail {
    padding: var(--space-2) 0;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

.location__detail strong {
    color: var(--color-text);
}

.location__map {
    min-height: 300px;
}

.location__map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: var(--text-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

@media (min-width: 1024px) {
    .location__grid {
        grid-template-columns: 1fr 1fr;
        align-items: stretch;
    }

    .location__map {
        height: 100%;
    }
}

/* --------------------------------------------------------------------------
   Register Section
   -------------------------------------------------------------------------- */
.register__content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.register__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.register__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.register__form {
    margin-bottom: var(--space-8);
}

.register__inputs {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.register__input {
    padding: var(--space-4) var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.register__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 50, 60, 0.2);
}

.register__input::placeholder {
    color: var(--color-text-muted);
}

.register__note {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-4);
}

.register__social p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: white;
}

.social-link svg {
    width: 20px;
    height: 20px;
}

@media (min-width: 640px) {
    .register__inputs {
        flex-direction: row;
    }

    .register__input {
        flex: 1;
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-bg-alt);
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__grid {
    display: grid;
    gap: var(--space-12);
}

.footer__logo {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-rojo);
    display: block;
}

.footer__logo-img {
    height: 48px;
    width: auto;
}

.footer__tagline {
    color: var(--color-text-muted);
    margin-top: var(--space-2);
    margin-bottom: var(--space-4);
}

.footer__copyright {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.footer__column h4 {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

.footer__column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer__column a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer__column a:hover {
    color: var(--color-text);
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr 2fr;
    }

    .footer__links {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Staggered animations */
.stagger-1 {
    animation-delay: 0.1s;
}

.stagger-2 {
    animation-delay: 0.2s;
}

.stagger-3 {
    animation-delay: 0.3s;
}

.stagger-4 {
    animation-delay: 0.4s;
}

.stagger-5 {
    animation-delay: 0.5s;
}

/* --------------------------------------------------------------------------
   Accessibility
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Sponsors Page Styles
   ========================================================================== */

/* Header solid variant for internal pages */
.header--solid {
    background: var(--color-bg);
}

/* Sponsors Hero */
.sponsors-hero {
    padding: calc(var(--space-20) + 80px) 0 var(--space-16);
    background: linear-gradient(180deg, rgba(255, 50, 60, 0.1) 0%, transparent 100%);
}

.sponsors-hero__content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.sponsors-hero__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.sponsors-hero__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.sponsors-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
}

@media (min-width: 768px) {
    .sponsors-hero__title {
        font-size: var(--text-5xl);
    }
}

/* Why Sponsor Section */
.why-sponsor__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .why-sponsor__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

@media (min-width: 1024px) {
    .why-sponsor__grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* Value Proposition Section */
.value-prop__grid {
    display: grid;
    gap: var(--space-12);
}

.value-prop__content {
    height: 100%;
}

.value-prop__list {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    gap: var(--space-4);
    height: 100%;
    margin: 0;
}

.value-prop__list li {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-1);
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-verde);
}

.value-prop__list li strong {
    font-family: var(--font-display);
    font-size: var(--text-base);
    color: var(--color-text);
}

.value-prop__list li span {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.value-prop__stats {
    display: grid;
    gap: var(--space-4);
}

.value-prop__stat {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding: var(--space-8);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.value-prop__stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-amarillo);
    margin-bottom: var(--space-2);
}

.value-prop__stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .value-prop__grid {
        grid-template-columns: 1fr 1fr;
        align-items: stretch;
    }

    .value-prop__stats {
        display: grid;
        grid-template-columns: 1fr;
        grid-template-rows: repeat(3, 1fr);
        gap: var(--space-4);
    }
}

/* Packages Section */
.packages__grid {
    display: grid;
    gap: var(--space-4);
}

.tier-card {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.tier-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.tier-card--featured {
    border-color: var(--color-rojo);
    background: linear-gradient(135deg, rgba(255, 50, 60, 0.1) 0%, transparent 100%);
}

.tier-card--premium {
    border-color: var(--color-amarillo);
    background: linear-gradient(135deg, rgba(255, 186, 0, 0.1) 0%, transparent 100%);
}

.tier-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    padding: var(--space-1) var(--space-3);
    background: var(--color-rojo);
    color: white;
    border-radius: var(--radius-full);
}

.tier-card--premium .tier-card__badge {
    background: var(--color-amarillo);
    color: var(--color-negro);
}

.tier-card__header {
    text-align: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.tier-card__name {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.tier-card__price {
    font-size: var(--text-sm);
    color: var(--color-verde);
    font-weight: 500;
}

.tier-card__benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.tier-card__benefits li {
    position: relative;
    padding-left: var(--space-6);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.tier-card__benefits li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300ACA8' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E") center/contain no-repeat;
}

@media (min-width: 640px) {
    .packages__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .packages__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Contact Section */
.contact__grid {
    display: grid;
    gap: var(--space-12);
}

.contact__description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.contact__detail {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.contact__detail strong {
    color: var(--color-text);
    margin-right: var(--space-2);
}

.contact__detail a {
    color: var(--color-verde);
}

.contact__detail a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

.contact-form__row {
    display: grid;
    gap: var(--space-4);
}

.contact-form__field {
    margin-bottom: var(--space-4);
}

.contact-form__field label {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.contact-form__field input,
.contact-form__field textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-size: var(--text-base);
    font-family: var(--font-body);
    transition: all var(--transition-fast);
}

.contact-form__field input:focus,
.contact-form__field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 50, 60, 0.2);
}

.contact-form__field input::placeholder,
.contact-form__field textarea::placeholder {
    color: var(--color-text-muted);
}

.contact-form__field textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form__checkboxes {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    background: var(--color-bg-card);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked+.checkbox-custom {
    background: var(--color-verde);
    border-color: var(--color-verde);
}

.checkbox-label input[type="checkbox"]:checked+.checkbox-custom::after {
    content: '';
    width: 10px;
    height: 10px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E") center/contain no-repeat;
}

.checkbox-label input[type="checkbox"]:focus+.checkbox-custom {
    box-shadow: 0 0 0 3px rgba(0, 172, 168, 0.3);
}

.contact-form__submit {
    width: 100%;
    margin-top: var(--space-4);
}

@media (min-width: 640px) {
    .contact-form__row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 768px) {
    .contact__grid {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

/* Active nav link */
.nav__link.active {
    color: var(--color-primary-light);
}

/* Horizontal Timeline */
.htimeline {
    position: relative;
    padding: var(--space-20) 0 var(--space-8);
    max-width: 1000px;
    margin: 0 auto;
}

.htimeline__line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-verde) 0%, var(--color-amarillo) 50%, var(--color-rojo) 100%);
    border-radius: 2px;
    transform: translateY(-50%);
}

.htimeline__months {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.htimeline__months span {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    color: var(--color-text-muted);
    padding: var(--space-2) var(--space-1);
    text-align: center;
    flex: 1;
}

.htimeline__months span::before {
    content: '';
    display: block;
    width: 2px;
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 auto var(--space-2);
}

.htimeline__month--event {
    color: var(--color-text) !important;
}

.htimeline__month--2027 {
    color: var(--color-amarillo) !important;
}

.htimeline__events {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.htimeline__event {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
}

.htimeline__marker {
    width: 20px;
    height: 20px;
    background: var(--color-verde);
    border: 4px solid var(--color-bg);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-verde);
    margin: 0 auto;
}

.htimeline__marker--tbd {
    background: var(--color-amarillo);
    box-shadow: 0 0 0 4px var(--color-amarillo);
}

.htimeline__card {
    position: absolute;
    bottom: calc(100% + 16px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    text-align: center;
    white-space: nowrap;
    min-width: 100px;
}

.htimeline__card::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--color-bg-card);
}

.htimeline__card--bottom {
    bottom: auto;
    top: calc(100% + 16px);
}

.htimeline__card--bottom::after {
    top: auto;
    bottom: 100%;
    border-top-color: transparent;
    border-bottom-color: var(--color-bg-card);
}

.htimeline__flag {
    display: block;
    font-size: 1.5rem;
    margin-bottom: var(--space-1);
}

.htimeline__city {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-text);
}

.htimeline__date {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

@media (max-width: 768px) {
    .htimeline {
        padding: var(--space-24) 0 var(--space-12);
    }

    .htimeline__months span {
        font-size: 0.6rem;
        padding: var(--space-1) 0;
    }

    .htimeline__card {
        padding: var(--space-2) var(--space-3);
        min-width: 80px;
    }

    .htimeline__flag {
        font-size: 1.2rem;
    }

    .htimeline__city {
        font-size: var(--text-xs);
    }

    .htimeline__date {
        font-size: 0.6rem;
    }

    .htimeline__marker {
        width: 16px;
        height: 16px;
        border-width: 3px;
        box-shadow: 0 0 0 3px var(--color-verde);
    }

    .htimeline__marker--tbd {
        box-shadow: 0 0 0 3px var(--color-amarillo);
    }
}

/* Video Section */
.video-section__wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.video-section__player {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.video-section__player iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
}

/* Photo Gallery */
.gallery__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.gallery__item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    cursor: pointer;
    aspect-ratio: 4/3;
    z-index: 1;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.gallery__item:hover img {
    transform: scale(1.08);
}

.gallery__item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.gallery__item:hover::after {
    opacity: 1;
}

@media (min-width: 640px) {
    .gallery__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .gallery__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox__content {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox__image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    line-height: 1;
}

.lightbox__close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox__prev,
.lightbox__next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.lightbox__prev {
    left: var(--space-4);
}

.lightbox__next {
    right: var(--space-4);
}

.lightbox__prev:hover,
.lightbox__next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox__counter {
    position: absolute;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-2) var(--space-4);
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-full);
}

@media (min-width: 768px) {
    .lightbox__prev {
        left: var(--space-8);
    }

    .lightbox__next {
        right: var(--space-8);
    }

    .lightbox__close {
        top: var(--space-6);
        right: var(--space-6);
    }
}

/* ==========================================================================
   Speakers Page Styles
   ========================================================================== */

/* Speakers Hero */
.speakers-hero {
    position: relative;
    padding: calc(var(--space-20) + 100px) 0 var(--space-20);
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
}

.speakers-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.85) 100%);
    z-index: 1;
}

.speakers-hero>.container {
    position: relative;
    z-index: 2;
}

.speakers-hero__content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.speakers-hero__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.speakers-hero__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.speakers-hero__stats {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.speakers-hero__stat {
    text-align: center;
}

.speakers-hero__stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-verde);
}

.speakers-hero__stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .speakers-hero__title {
        font-size: var(--text-5xl);
    }
}

/* Featured Speakers */
.featured-speakers__grid {
    display: grid;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .featured-speakers__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Speaker Cards */
.speaker-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.speaker-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.speaker-card--featured {
    display: block;
}

.speaker-card--featured .speaker-card__image {
    aspect-ratio: 3/4;
    width: 100%;
}

.speaker-card__image {
    aspect-ratio: 1;
    overflow: hidden;
}

.speaker-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.speaker-card:hover .speaker-card__image img {
    transform: scale(1.05);
}

.speaker-card__content {
    padding: var(--space-6);
}

.speaker-card__name {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.speaker-card__role {
    font-size: var(--text-sm);
    color: var(--color-verde);
    margin-bottom: var(--space-1);
}

.speaker-card__company {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.speaker-card__bio {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.speaker-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.speaker-card__tag {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-2);
    background: rgba(255, 186, 0, 0.15);
    color: var(--color-amarillo);
    border-radius: var(--radius-sm);
}

/* Speakers Grid */
.speakers-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .speakers-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.speakers-grid .speaker-card__content {
    padding: var(--space-4);
}

.speakers-grid .speaker-card__name {
    font-size: var(--text-base);
}

.speakers-grid .speaker-card__role,
.speakers-grid .speaker-card__company {
    font-size: var(--text-xs);
}

/* Speakers CTA */
.speakers-cta {
    text-align: center;
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.speakers-cta__text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

/* Call for Speakers Section */
.cfp__grid {
    display: grid;
    gap: var(--space-12);
}

@media (min-width: 768px) {
    .cfp__grid {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

.cfp__description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.cfp__list {
    margin-bottom: var(--space-6);
}

.cfp__list li {
    position: relative;
    padding-left: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--color-text-secondary);
}

.cfp__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-verde);
    border-radius: 50%;
}

.cfp__topics {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

.cfp__topics-title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-6);
}

.cfp__topics-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.cfp__topic {
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-card);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
}