/* ===================================================
   BRAIN2026 CONFERENCE WEBSITE
   Main Stylesheet (style.css)
   =================================================== */

/* ===================================================
   ROOT VARIABLES & THEME
   =================================================== */
:root {
    /* Colors */
    --primary-color: #17096E;
    --secondary-color: #B07815;
    --accent-color: #890D0D;
    --background-color: #F8F9FC;
    --card-bg-color: #FFFFFF;
    --text-color: #1F2937;
    --text-light: #6B7280;
    --text-lighter: #9CA3AF;
    --border-color: #E5E7EB;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 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;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
}

/* Dark Mode Variables */
body.dark-mode {
    --background-color: #0F172A;
    --card-bg-color: #1E293B;
    --text-color: #F1F5F9;
    --text-light: #CBD5E1;
    --text-lighter: #94A3B8;
    --border-color: #334155;
}

/* ===================================================
   RESET & BASE STYLES
   =================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

/* ===================================================
   CONTAINER & LAYOUT
   =================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-4xl) 0;
}

/* ===================================================
   TYPOGRAPHY
   =================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: 800;
}

h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
}

h3 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

h4 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

h5 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

h6 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--secondary-color);
}

/* ===================================================
   BUTTONS
   =================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-base), height var(--transition-base);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2E1A8F);
    color: white;
    box-shadow: 0 4px 15px rgba(23, 9, 110, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(23, 9, 110, 0.4);
}

/* Secondary Button */
.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), #D4941F);
    color: white;
    box-shadow: 0 4px 15px rgba(176, 120, 21, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(176, 120, 21, 0.4);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Button Sizes */
.btn-small {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* ===================================================
   LOADING SCREEN
   =================================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
    color: white;
}

.loader-circle {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loader p {
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 500;
}

/* ===================================================
   SCROLL PROGRESS BAR
   =================================================== */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    width: 0;
    z-index: 1050;
    transition: width var(--transition-fast);
}

/* ===================================================
   NAVIGATION BAR
   =================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

body.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.7);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Logo */
.navbar-logo {
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary-color);
    z-index: 10;
}

.logo-placeholder {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo-text {
    background: linear-gradient(135deg, white, #E0E7FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation Menu */
.navbar-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    align-items: center;
    margin-left: 3rem;
    margin-right: var(--spacing-lg);
}

.navbar-menu a {
    color: var(--text-color);
    font-weight: 500;
    font-size: var(--font-size-base);
    position: relative;
    transition: color var(--transition-base);
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-base);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

.navbar-menu a:hover {
    color: var(--primary-color);
}

/* Navbar Actions */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.dark-mode-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(23, 9, 110, 0.1);
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    color: var(--primary-color);
}

.dark-mode-toggle:hover {
    background: rgba(23, 9, 110, 0.2);
    transform: rotate(20deg);
}

.dark-mode-toggle svg {
    width: 20px;
    height: 20px;
    display: none;
}

.dark-mode-toggle .sun-icon {
    display: block;
}

body.dark-mode .dark-mode-toggle .sun-icon {
    display: none;
}

body.dark-mode .dark-mode-toggle .moon-icon {
    display: block;
}

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 20;
}

.hamburger-menu span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===================================================
   HERO SECTION
   Full-bleed campus photo banner, centered content —
   styled after the PAN-IIM Shillong conference hero.
   =================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 70px;
    overflow: hidden;
    background-image: url('campus-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* Dark gradient wash so the photo stays bold and visible
   while white text on top stays fully readable */
.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg,
        rgba(10,6,40,0.35) 0%,
        rgba(23,9,110,0.2) 45%,
        rgba(10,6,40,0.45) 100%);
}

/* Animated Background (decorative shapes, sit above the photo/overlay) */
.animated-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 2;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-color);
    top: -150px;
    left: -150px;
    animation-duration: 25s;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--secondary-color);
    top: 50%;
    right: -100px;
    animation-duration: 30s;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: var(--accent-color);
    bottom: -75px;
    left: 30%;
    animation-duration: 28s;
    animation-delay: 1s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    background: var(--primary-color);
    bottom: 10%;
    right: 10%;
    animation-duration: 32s;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
    }
    25% {
        transform: translateY(-30px) translateX(20px);
    }
    50% {
        transform: translateY(-60px) translateX(-20px);
    }
    75% {
        transform: translateY(-30px) translateX(10px);
    }
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    width: 100%;
    padding: var(--spacing-2xl) var(--spacing-2xl);
    margin: 0 auto;
    text-align: center;
    background: rgba(10, 6, 40, 0.4);
    backdrop-filter: blur(6px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-text {
    text-align: center;
}

.hero-title {
    color: white;
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 4px 20px rgba(0,0,0,0.35);
}

.hero-subtitle {
    font-size: var(--font-size-3xl);
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    margin: 0 auto var(--spacing-2xl);
    line-height: 1.8;
    max-width: 640px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

/* Collaboration logos — white badge so PNGs stay crisp against the dark photo backdrop */
.collab-logos-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.collab-logo-badge {
    background: white;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    transition: transform var(--transition-base);
}

.collab-logo-badge:hover {
    transform: translateY(-3px);
}

.collab-logo-badge img {
    height: 52px;
    width: auto;
    display: block;
}

/* Hero Info Bar — horizontal strip below the buttons,
   styled after the reference site's Date | Venue bar */
.hero-info-bar {
    position: relative;
    z-index: 10;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: var(--spacing-3xl) auto 0;
    padding: 0 var(--spacing-lg);
    animation: floatUp 1s ease-out 0.2s both;
}

.hero-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
    flex: 1 1 220px;
    max-width: 280px;
}

.hero-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
}

.hero-card svg {
    width: 36px;
    height: 36px;
    color: white;
    flex-shrink: 0;
}

.card-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.card-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: white;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 15;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator svg {
    width: 30px;
    height: 30px;
    color: var(--primary-color);
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* ===================================================
   PAGE HERO BANNER
   Shared campus-photo banner used at the top of every
   inner page (About, Contact, Venue, Gallery, etc).
   !important is used so this always wins over any
   leftover per-page <style> block that used to define
   its own (often broken or photo-less) .page-hero rule.
   =================================================== */
.page-hero {
    background-image:
        linear-gradient(135deg, rgba(10,6,40,0.82), rgba(23,9,110,0.68) 45%, rgba(137,13,13,0.62)),
        url('campus-bg.jpeg') !important;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    position: relative;
    padding: 160px 0 90px;
    overflow: hidden;
    text-align: center;
}

.page-hero .floating-shape {
    opacity: 0.12;
}

.page-hero-content {
    position: relative;
    z-index: 2;
}

.page-hero-title {
    color: white;
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.page-hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    max-width: 700px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-lg);
    justify-content: center;
}

.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-base);
}

.breadcrumb-nav a:hover {
    color: white;
}

.breadcrumb-nav span.sep {
    opacity: 0.6;
}

.breadcrumb-nav span.current {
    color: white;
    font-weight: 600;
}

/* ===================================================
   COMMITTEE / LEADERSHIP CARDS
   Used on committee.html for Chief Patron, Patrons,
   Conference Chairs, Convenors, and the Advisory Committee.
   =================================================== */
.leadership-group {
    margin-bottom: var(--spacing-3xl);
}

.leadership-group:last-child {
    margin-bottom: 0;
}

.leadership-group-title {
    text-align: center;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 800px;
    margin: 0 auto;
}

.leadership-grid-single {
    max-width: 340px;
}

.leadership-card {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.leadership-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.leadership-avatar {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.leadership-card h3 {
    color: var(--text-color);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.leadership-role {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.leadership-org {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: 0;
}

.leadership-connector {
    text-align: center;
    color: var(--text-lighter);
    font-weight: 700;
    font-size: var(--font-size-lg);
    margin: -1rem 0 var(--spacing-lg);
}

.committee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: var(--spacing-lg);
}

.committee-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.committee-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.committee-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.committee-info h4 {
    color: var(--text-color);
    font-size: var(--font-size-base);
    margin-bottom: 0.2rem;
}

.committee-info p {
    color: var(--text-light);
    font-size: var(--font-size-xs);
    line-height: 1.5;
    margin-bottom: 0;
}

/* ===================================================
   COUNTDOWN SECTION
   =================================================== */
.countdown-section {
    background: linear-gradient(135deg, var(--primary-color), #2E1A8F);
    padding: var(--spacing-4xl) 0;
}

.countdown-section .section-title {
    color: white;
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.countdown {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
    max-width: 600px;
    margin: 0 auto;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.countdown-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.countdown-value {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: white;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.countdown-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ===================================================
   LATEST UPDATES & ANNOUNCEMENTS SECTION
   =================================================== */
.announcements-section {
    background: var(--background-color);
}

.announcements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.announcement-card {
    position: relative;
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.announcement-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.announcement-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-lg);
}

.announcement-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-lg);
}

.announcement-icon svg {
    width: 28px;
    height: 28px;
}

.announcement-title {
    color: var(--text-color);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.announcement-text {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.announcement-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--primary-color);
}

.announcement-link svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.announcement-link:hover svg {
    transform: translateX(4px);
}

@media (max-width: 767px) {
    .announcements-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================================
   ANNOUNCEMENT TICKER
   =================================================== */
.announcement-section {
    background: linear-gradient(90deg, rgba(23, 9, 110, 0.05), rgba(176, 120, 21, 0.05));
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.announcement-ticker {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    overflow: hidden;
}

.ticker-label {
    font-weight: 600;
    color: var(--primary-color);
    white-space: nowrap;
    font-size: var(--font-size-lg);
}

.ticker-content {
    flex: 1;
    overflow: hidden;
}

.ticker-item {
    display: inline-block;
    white-space: nowrap;
    padding: 0 var(--spacing-xl);
    color: var(--text-light);
    font-weight: 500;
    animation: scroll 20s linear infinite;
}

@keyframes scroll {
    0% {
        transform: translateX(100%);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* ===================================================
   SECTION HEADERS
   =================================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-light);
}

/* ===================================================
   ABOUT SECTION
   =================================================== */
.about-section {
    background: var(--background-color);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
}

.about-card {
    padding: var(--spacing-2xl);
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.about-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-lg);
}

.about-icon svg {
    width: 30px;
    height: 30px;
}

.about-card h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.about-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Horizontal variant — used only by the "About BRAIN'26" grid on the
   homepage. Fixed 2 columns, icon + text side by side, so text always
   stays inside the box regardless of content length. */
.about-grid-horizontal {
    grid-template-columns: repeat(2, 1fr);
}

.about-card-horizontal {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    text-align: left;
}

.about-card-horizontal .about-icon {
    margin-bottom: 0;
    flex-shrink: 0;
}

.about-card-text h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.about-card-text p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

@media (max-width: 575px) {
    .about-card-horizontal {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===================================================
   THEME SECTION (DISTINCT)
   Bold, centered banner highlighting the conference theme
   =================================================== */
.theme-section {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color), #2E1A8F 55%, var(--accent-color));
    text-align: center;
    padding: var(--spacing-4xl) 0;
    overflow: hidden;
}

.theme-eyebrow {
    color: rgba(255, 255, 255, 0.75);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 700;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.theme-section h2 {
    color: white;
    font-size: clamp(3rem, 9vw, 6rem);
    font-weight: 800;
    letter-spacing: 6px;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
}

.theme-description {
    color: rgba(255, 255, 255, 0.92);
    font-size: var(--font-size-xl);
    max-width: 750px;
    margin: 0 auto;
}

/* ===================================================
   WHY ATTEND SECTION
   =================================================== */
.why-attend-section {
    background: linear-gradient(135deg, rgba(23, 9, 110, 0.05), rgba(176, 120, 21, 0.05));
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.benefit-item {
    padding: var(--spacing-2xl);
    position: relative;
}

.benefit-number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-lg);
}

.benefit-item h4 {
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.benefit-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===================================================
   HIGHLIGHTS SECTION
   =================================================== */
.highlights-section {
    background: var(--background-color);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
}

.highlight-card {
    padding: var(--spacing-2xl);
    text-align: center;
    background: var(--card-bg-color);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-slow);
    box-shadow: var(--shadow-md);
    animation: slideUp 0.6s ease-out both;
    animation-delay: var(--delay, 0s);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.highlight-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.highlight-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-xl);
    margin: 0 auto var(--spacing-lg);
}

.highlight-icon svg {
    width: 35px;
    height: 35px;
}

.highlight-card h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.highlight-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Horizontal variant — same 2-column, icon+text pattern as About BRAIN'26 */
.highlights-grid-horizontal {
    grid-template-columns: repeat(2, 1fr);
}

.highlight-card-horizontal {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    text-align: left;
}

.highlight-card-horizontal .highlight-icon {
    margin: 0;
    flex-shrink: 0;
}

.highlight-card-text h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.highlight-card-text p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

@media (max-width: 575px) {
    .highlight-card-horizontal {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===================================================
   STATISTICS SECTION
   =================================================== */
.statistics-section {
    background: linear-gradient(135deg, rgba(23, 9, 110, 0.08), rgba(176, 120, 21, 0.08));
    padding: var(--spacing-4xl) 0;
}

.statistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
}

.stat-card {
    padding: var(--spacing-2xl);
    background: var(--card-bg-color);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.stat-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.stat-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.stat-label {
    color: var(--text-light);
    font-size: var(--font-size-base);
    font-weight: 500;
}

/* ===================================================
   TRACKS SECTION
   =================================================== */
.tracks-section {
    background: var(--background-color);
}

.tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
}

.track-card {
    padding: var(--spacing-2xl);
    background: var(--card-bg-color);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.track-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: var(--shadow-xl);
}

.track-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.track-card h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.track-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Horizontal variant — same 2-column, icon+text pattern as About BRAIN'26 */
.tracks-grid-horizontal {
    grid-template-columns: repeat(2, 1fr);
}

.track-card-horizontal {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    text-align: left;
}

.track-card-horizontal .track-icon {
    margin: 0;
    flex-shrink: 0;
    font-size: 2.5rem;
    line-height: 1;
}

.track-card-text h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.track-card-text p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

@media (max-width: 575px) {
    .track-card-horizontal {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===================================================
   CAMPUS SECTION (index.html — "Hosted At" block)
   Uses the same shared campus photo as .page-hero so
   the image is a constant visual thread across the
   whole site, including the homepage.
   =================================================== */
.campus-section {
    position: relative;
    background-image:
        linear-gradient(135deg, rgba(10,6,40,0.85), rgba(23,9,110,0.75) 60%, rgba(137,13,13,0.55)),
        url('campus-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    text-align: center;
    padding: var(--spacing-4xl) 0;
}

.campus-section .campus-eyebrow {
    color: rgba(255, 255, 255, 0.85);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.campus-section h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.campus-section .campus-description {
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.campus-section .campus-btn {
    border-color: white;
    color: white;
}

.campus-section .campus-btn:hover {
    background: white;
    color: var(--primary-color);
}

/* ===================================================
   SPEAKERS PREVIEW SECTION
   =================================================== */
.speakers-preview-section {
    background: linear-gradient(135deg, rgba(23, 9, 110, 0.05), rgba(176, 120, 21, 0.05));
}

.speakers-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.speaker-card-preview {
    padding: var(--spacing-2xl);
    background: var(--card-bg-color);
    border-radius: var(--radius-2xl);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.speaker-card-preview:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

/* Two-column layout — one speaker per column, third wraps to its own row */
.speakers-preview-grid-2col {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 767px) {
    .speakers-preview-grid-2col {
        grid-template-columns: 1fr;
    }
}

.speaker-photo {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    object-fit: cover;
    display: block;
    border: 4px solid var(--card-bg-color);
    box-shadow: var(--shadow-lg);
}

.speaker-image-placeholder {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 50px;
}

.speaker-image-placeholder svg {
    width: 60px;
    height: 60px;
}

.speaker-name {
    color: var(--text-color);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.speaker-title {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* ===================================================
   DATES TIMELINE SECTION
   =================================================== */
.dates-timeline-section {
    background: var(--background-color);
}

.timeline {
    position: relative;
    padding: var(--spacing-2xl) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    transform: translateX(-50%);
}

.timeline-item {
    margin-bottom: var(--spacing-3xl);
    position: relative;
}

.timeline-item:nth-child(odd) {
    padding-right: 50%;
    text-align: right;
}

.timeline-item:nth-child(even) {
    padding-left: 50%;
    text-align: left;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: white;
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    z-index: 5;
    box-shadow: 0 0 0 4px var(--background-color);
}

.timeline-content {
    padding: var(--spacing-lg);
    background: var(--card-bg-color);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.timeline-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-status.ongoing {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.timeline-status.upcoming {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.timeline-status.main-event {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

/* ===================================================
   SPONSORS SECTION
   =================================================== */
.sponsors-preview-section {
    background: linear-gradient(135deg, rgba(23, 9, 110, 0.05), rgba(176, 120, 21, 0.05));
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.sponsor-placeholder {
    padding: var(--spacing-2xl);
    background: var(--card-bg-color);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
    text-align: center;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-lighter);
}

.partnership-text {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

/* ===================================================
   GALLERY SECTION
   =================================================== */
.gallery-preview-section {
    background: var(--background-color);
}

.gallery-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.gallery-preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    /* Fallback so the tile still looks intentional if the image
       file (1.jpg, 2.jpg, ...) hasn't been uploaded to the repo yet */
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.gallery-preview-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.gallery-preview-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.gallery-preview-item:hover .gallery-preview-img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.gallery-preview-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay p {
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 600;
}

/* ===================================================
   FAQ SECTION
   =================================================== */
.faq-section {
    background: linear-gradient(135deg, rgba(23, 9, 110, 0.05), rgba(176, 120, 21, 0.05));
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.faq-item {
    background: var(--card-bg-color);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.faq-question {
    padding: var(--spacing-xl);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: all var(--transition-base);
    gap: var(--spacing-lg);
}

.faq-question:hover {
    background: rgba(23, 9, 110, 0.05);
}

.faq-question h3 {
    margin: 0;
    color: var(--text-color);
    font-size: var(--font-size-lg);
    text-align: left;
}

.faq-question svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.faq-item.active .faq-question svg {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
    color: var(--text-light);
}

/* ===================================================
   NEWSLETTER SECTION
   =================================================== */
.newsletter-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: var(--spacing-4xl) 0;
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    color: white;
}

.newsletter-content h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.newsletter-content p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    outline: none;
    transition: all var(--transition-base);
}

.newsletter-form input:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

.newsletter-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

/* ===================================================
   REGISTRATION CTA SECTION
   =================================================== */
.registration-cta-section {
    background: var(--background-color);
    padding: var(--spacing-4xl) 0;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
}

.cta-content p {
    color: var(--text-light);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

/* ===================================================
   FOOTER
   =================================================== */
.footer {
    background: var(--text-color);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
}

body.dark-mode .footer {
    background: #0F172A;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--spacing-lg);
}

.footer-column h3,
.footer-column h4 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-md);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.footer-column a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.social-links svg {
    width: 20px;
    height: 20px;
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.footer-bottom p {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.footer-credit {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ===================================================
   BACK TO TOP BUTTON
   =================================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ===================================================
   UTILITY CLASSES
   =================================================== */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in-down {
    animation: fadeInDown 0.8s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}