/* ==========================================================================
   INVOS 2026 - Indonesia Vocational Summit
   High-Converting Landing Page Styles
   Aesthetic: Premium Corporate / Navy & Gold
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables / Design Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Navy & Gold Palette (Darker Gold for better contrast) */
    --navy-900: #060d1a;
    --navy-800: #0a1628;
    --navy-700: #0f1f38;
    --navy-600: #162a4a;
    --navy-500: #1e3a5f;
    --navy-400: #2a4a73;
    --navy-300: #3d6494;
    
    --gold-500: #c9a227;
    --gold-400: #d4af37;
    --gold-300: #e5c158;
    --gold-200: #f0d77a;
    --gold-100: #faedb9;
    
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --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-gold: 0 4px 14px 0 rgba(201, 162, 39, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Z-Index Scale */
    --z-nav: 1000;
    --z-overlay: 900;
    --z-modal: 1100;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--navy-800);
}

.text-accent { color: var(--gold-500); }
.text-gold { color: var(--gold-400); }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: none;
}

.btn--primary {
    background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-400) 100%);
    color: var(--navy-900);
    box-shadow: var(--shadow-gold);
}
.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 197, 24, 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}
.btn--outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn--outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}
.btn--outline-light:hover {
    background: var(--white);
    color: var(--navy-800);
}

.btn--text {
    background: transparent;
    color: var(--gold-500);
    padding: var(--space-sm) var(--space-md);
}
.btn--text:hover { color: var(--gold-400); }

.btn--full { width: 100%; }
.btn--lg { padding: 1rem 2rem; font-size: 1rem; }
.btn i { font-size: 0.875em; transition: transform var(--transition-fast); }
.btn:hover i { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   Section Header
   -------------------------------------------------------------------------- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}
.section-header--left { text-align: left; }
.section-header--light .section-header__title { color: var(--white); }
.section-header--light .section-header__subtitle { color: rgba(255, 255, 255, 0.7); }

.section-header__tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-lg);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold-500);
    background: rgba(245, 197, 24, 0.1);
    border: 1px solid rgba(245, 197, 24, 0.3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.section-header__title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-md);
}

.section-header__subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: var(--z-nav);
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
}
.nav--scrolled {
    background: rgba(6, 13, 26, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.nav__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav__logo { display: flex; align-items: baseline; gap: var(--space-xs); }
.nav__logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
}
.nav__logo-year {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--gold-500);
}
.nav__menu { display: flex; align-items: center; gap: var(--space-xl); }
.nav__link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    padding: var(--space-xs) 0;
}
.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--gold-500);
    transition: width var(--transition-base);
}
.nav__link:hover { color: var(--white); }
.nav__link:hover::after { width: 100%; }
.nav__link--cta {
    background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-400) 100%);
    color: var(--navy-900);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover {
    color: var(--navy-900);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}
.nav__toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-sm); }
.nav__toggle-bar { width: 24px; height: 2px; background: var(--white); transition: all var(--transition-fast); }

@media (max-width: 768px) {
    .nav__toggle { display: flex; }
    .nav__menu {
        position: fixed; top: 0; right: -100%;
        width: 80%; max-width: 320px; height: 100vh;
        background: var(--navy-800);
        flex-direction: column; justify-content: center; align-items: center;
        gap: var(--space-2xl);
        transition: right var(--transition-base);
    }
    .nav__menu--active { right: 0; }
    .nav__toggle--active .nav__toggle-bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav__toggle--active .nav__toggle-bar:nth-child(2) { opacity: 0; }
    .nav__toggle--active .nav__toggle-bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
}

/* ==========================================================================
   MODULE 1: HERO
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--navy-900);
}
.hero__bg { position: absolute; inset: 0; z-index: 1; }
.hero__bg-image {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0.25;
}
.hero__bg-overlay {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(245, 197, 24, 0.15) 0%, transparent 50%),
        linear-gradient(180deg, rgba(6, 13, 26, 0.7) 0%, var(--navy-900) 100%);
}
.hero__container {
    position: relative; z-index: 2;
    text-align: center;
    padding: var(--space-xl);
    max-width: 1000px;
}
.hero__trust {
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}
.hero__trust-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(245, 197, 24, 0.15);
    border: 1px solid rgba(245, 197, 24, 0.3);
    border-radius: var(--radius-full);
    color: var(--gold-400);
    font-size: 0.8125rem;
    font-weight: 600;
}
.hero__content { animation: fadeInUp 0.8s ease 0.2s forwards; opacity: 0; }
.hero__eyebrow {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    color: var(--gold-500);
    margin-bottom: var(--space-md);
}
.hero__title {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-lg);
}
.hero__title-accent {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
.hero__title-year {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 400;
    color: var(--gold-500);
    margin-top: -0.5em;
}
.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.375rem);
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.6;
}
.hero__details {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}
.hero__detail {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: left;
}
.hero__detail i {
    font-size: 1.5rem;
    color: var(--gold-500);
}
.hero__detail-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.5);
}
.hero__detail-value {
    display: block;
    font-weight: 600;
    color: var(--white);
    font-size: 0.9375rem;
}
.hero__detail-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}
.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}
.hero__countdown {
    padding: var(--space-lg) var(--space-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}
.hero__countdown-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.hero__countdown-timer {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}
.hero__countdown-item { text-align: center; }
.hero__countdown-num {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}
.hero__countdown-unit {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.5);
}
.hero__countdown-sep {
    font-size: 1.5rem;
    color: var(--gold-500);
    font-weight: 300;
}
.hero__scroll {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: bounce 2s ease infinite;
    padding-bottom: var(--space-xl);
}
.hero__scroll:hover { color: var(--gold-500); }

@media (max-width: 768px) {
    .hero__container { padding-top: 100px; }
}
@media (max-width: 640px) {
    .hero__container { padding-top: 90px; }
    .hero__details { flex-direction: column; gap: var(--space-lg); }
    .hero__detail-divider { display: none; }
    .hero__actions { flex-direction: column; width: 100%; max-width: 300px; margin-left: auto; margin-right: auto; }
    .hero__actions .btn { width: 100%; }
    .hero__countdown-timer { gap: var(--space-sm); }
}

/* ==========================================================================
   MODULE 2: SNAPSHOT
   ========================================================================== */
.snapshot {
    background: var(--white);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--gray-200);
}
.snapshot__container { max-width: 1280px; margin: 0 auto; padding: 0 var(--space-xl); }
.snapshot__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}
.snapshot__item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}
.snapshot__icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-700) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.snapshot__icon i { color: var(--gold-500); font-size: 1.125rem; }
.snapshot__label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
}
.snapshot__value {
    display: block;
    font-weight: 600;
    color: var(--navy-800);
    font-size: 0.9375rem;
}

@media (max-width: 1024px) { .snapshot__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .snapshot { display: none; }
}

/* ==========================================================================
   MODULE 3: BENEFITS (Why Attend)
   ========================================================================== */
.benefits {
    padding: var(--space-4xl) 0;
    background: var(--gray-50);
}
.benefits__container { max-width: 1000px; margin: 0 auto; padding: 0 var(--space-xl); }
.benefits__grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Benefit Card - Horizontal Layout */
.benefit-card {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl) var(--space-2xl);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}
.benefit-card:hover {
    border-color: var(--gold-500);
    box-shadow: 0 8px 30px rgba(201, 162, 39, 0.12);
    transform: translateX(8px);
}

/* Number */
.benefit-card__number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--gray-200);
    line-height: 1;
    min-width: 70px;
    transition: color var(--transition-base);
}
.benefit-card:hover .benefit-card__number {
    color: var(--gold-500);
}

/* Icon */
.benefit-card__icon-wrap {
    width: 64px;
    height: 64px;
    background: var(--navy-800);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.benefit-card__icon-wrap i {
    font-size: 1.5rem;
    color: var(--gold-500);
}

/* Content */
.benefit-card__content {
    flex: 1;
}
.benefit-card__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--navy-800);
    margin-bottom: var(--space-xs);
}
.benefit-card__text {
    color: var(--gray-500);
    line-height: 1.6;
    margin: 0;
    font-size: 0.9375rem;
}

/* Arrow */
.benefit-card__arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-400);
    flex-shrink: 0;
    transition: all var(--transition-base);
}
.benefit-card:hover .benefit-card__arrow {
    background: var(--gold-500);
    color: var(--navy-900);
}

@media (max-width: 640px) {
    .benefit-card {
        flex-wrap: wrap;
        padding: var(--space-lg);
        gap: var(--space-md);
    }
    .benefit-card__number {
        display: none;
    }
    .benefit-card__arrow {
        display: none;
    }
}

/* ==========================================================================
   MODULE 4: SPEAKERS
   ========================================================================== */
.speakers {
    padding: var(--space-4xl) 0;
    background: var(--white);
}
.speakers__container { max-width: 1280px; margin: 0 auto; padding: 0 var(--space-xl); }
.speaker-featured {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--space-3xl);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    overflow: hidden;
}
.speaker-featured__image {
    position: relative;
    min-height: 400px;
}
.speaker-featured__image img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.speaker-featured__badge {
    position: absolute;
    bottom: var(--space-lg); left: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--gold-500);
    color: var(--navy-900);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    text-transform: uppercase;
}
.speaker-featured__content {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.speaker-featured__role {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gold-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}
.speaker-featured__name {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-sm);
}
.speaker-featured__title {
    font-size: 1rem;
    color: var(--gray-500);
    margin-bottom: var(--space-lg);
}
.speaker-featured__bio {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}
.speaker-featured__stats {
    display: flex;
    gap: var(--space-2xl);
    margin-bottom: var(--space-lg);
}
.speaker-featured__stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold-500);
}
.speaker-featured__stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--gray-500);
}
.speaker-featured__social {
    display: flex;
    gap: var(--space-md);
}
.speaker-featured__social a {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--navy-800);
    color: var(--white);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.speaker-featured__social a:hover {
    background: var(--gold-500);
    color: var(--navy-900);
}

@media (max-width: 900px) {
    .speaker-featured { grid-template-columns: 1fr; }
    .speaker-featured__image { min-height: 300px; }
}

/* ==========================================================================
   MODULE 5: AGENDA - Clean Minimal Design
   ========================================================================== */
.agenda {
    padding: var(--space-4xl) 0;
    background: var(--white);
}
.agenda__container {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Tabs */
.agenda__tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-3xl);
}
.agenda__tab {
    padding: var(--space-lg) var(--space-2xl);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    min-width: 180px;
}
.agenda__tab:hover {
    border-color: var(--navy-400);
}
.agenda__tab--active {
    background: var(--navy-800);
    border-color: var(--navy-800);
    color: var(--white);
}
.agenda__tab-day {
    display: block;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 4px;
}
.agenda__tab-date {
    display: block;
    font-size: 0.8125rem;
    opacity: 0.6;
}
.agenda__tab--active .agenda__tab-date {
    opacity: 0.85;
}

/* Day Content */
.agenda__day {
    display: none;
}
.agenda__day--active {
    display: block;
}

/* List */
.agenda__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Item */
.agenda__item {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-2xl);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-base);
}
.agenda__item:hover {
    background: var(--white);
    border-color: var(--gray-200);
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

/* Number */
.agenda__number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-200);
    line-height: 1;
    min-width: 60px;
    transition: color var(--transition-base);
}
.agenda__item:hover .agenda__number {
    color: var(--gold-500);
}

/* Title */
.agenda__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--navy-800);
    margin: 0;
    line-height: 1.4;
}

/* Mobile */
@media (max-width: 640px) {
    .agenda__tabs {
        flex-direction: column;
        gap: var(--space-sm);
    }
    .agenda__tab {
        width: 100%;
        padding: var(--space-md) var(--space-lg);
    }
    .agenda__item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
        padding: var(--space-lg);
    }
    .agenda__number {
        font-size: 1.5rem;
    }
    .agenda__title {
        font-size: 1.0625rem;
    }
}

/* ==========================================================================
   MODULE 6: PARTNERS (Institutions)
   ========================================================================== */
.partners {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, var(--navy-800) 0%, var(--navy-900) 100%);
    overflow: hidden;
}
.partners__container { max-width: 1280px; margin: 0 auto; padding: 0 var(--space-xl); }
.partners__marquee {
    margin: var(--space-xl) calc(-1 * var(--space-xl));
    padding: var(--space-md) 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}
.partners__marquee-track {
    display: flex;
    gap: var(--space-lg);
    width: max-content;
}
.partners__marquee-track--1 { animation: marquee 80s linear infinite; }
.partners__marquee-track--2 { animation: marquee-reverse 90s linear infinite; }
.partners__marquee-track--3 { animation: marquee 100s linear infinite; }
.partners__marquee:hover .partners__marquee-track { animation-play-state: paused; }
.partners__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    white-space: nowrap;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
}
.partners__logo:hover {
    background: rgba(201, 162, 39, 0.15);
    border-color: var(--gold-500);
    color: var(--white);
}
.partners__logo i { color: var(--gold-500); }
.partners__counter {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    margin-top: var(--space-2xl);
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-xl);
}
.partners__counter-item { text-align: center; }
.partners__counter-num {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold-500);
}
.partners__counter-label {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.6);
}

/* Mobile Partners */
@media (max-width: 640px) {
    .partners__counter {
        flex-direction: column;
        gap: var(--space-lg);
        padding: var(--space-lg);
    }
    .partners__counter-num {
        font-size: 2rem;
    }
}

/* ==========================================================================
   MODULE 7: SPONSORSHIP
   ========================================================================== */
.sponsorship {
    padding: var(--space-4xl) 0;
    background: var(--white);
}
.sponsorship__container { max-width: 1400px; margin: 0 auto; padding: 0 var(--space-xl); }
/* Pricing Header */
.sponsorship__pricing-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}
.sponsorship__pricing-note {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--error);
    font-weight: 500;
}

/* Toggle */
.sponsorship__toggle {
    display: flex;
    gap: var(--space-xs);
    padding: var(--space-xs);
    background: var(--gray-100);
    border-radius: var(--radius-full);
}
.sponsorship__toggle-btn {
    padding: var(--space-md) var(--space-xl);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-500);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.sponsorship__toggle-btn:hover {
    color: var(--navy-800);
}
.sponsorship__toggle-btn--active {
    background: var(--navy-800);
    color: var(--white);
    box-shadow: var(--shadow-md);
}
.sponsorship__toggle-btn[data-view="earlybird"] {
    color: var(--error);
}
.sponsorship__toggle-btn[data-view="earlybird"] i {
    color: var(--error);
}
.sponsorship__toggle-btn--active[data-view="earlybird"] {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--white);
}
.sponsorship__toggle-btn--active[data-view="earlybird"] i {
    color: var(--white);
}
.sponsorship__featured {
    margin-bottom: var(--space-2xl);
}
.sponsor-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}
.sponsor-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}
.sponsor-card--featured {
    border: 2px solid var(--gold-500);
    max-width: 400px;
    margin: 0 auto;
}
.sponsor-card__header {
    padding: var(--space-xl);
    border-bottom: 3px solid var(--gray-200);
    text-align: center;
}
.sponsor-card--featured .sponsor-card__header { border-bottom-color: var(--gold-500); }
.sponsor-card__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
    white-space: nowrap;
}
.sponsor-card__badge svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* Tier 1: Diamond - Light blue with diamond SVG */
.sponsor-card__badge--diamond {
    background: linear-gradient(135deg, #b9f2ff 0%, #7dd3fc 100%);
    color: #0369a1;
    padding: 8px 20px;
    font-size: 0.8125rem;
    font-weight: 800;
    box-shadow: 0 0 20px rgba(125, 211, 252, 0.5), inset 0 0 20px rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
}
.sponsor-card__badge--diamond svg {
    fill: #0369a1;
}

/* Tier 2: Platinum - Glowing platinum */
.sponsor-card__badge--platinum {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
    color: #475569;
    border: 1px solid #cbd5e1;
    box-shadow: 0 0 15px rgba(203, 213, 225, 0.6), 0 0 30px rgba(148, 163, 184, 0.2);
    font-weight: 700;
}

/* Tier 3: Pavilion - Navy with gold accent glow */
.sponsor-card__badge--pavilion {
    background: var(--navy-800);
    color: var(--gold-400);
    border: 1px solid rgba(212, 175, 55, 0.5);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.2), inset 0 0 15px rgba(212, 175, 55, 0.05);
    font-weight: 700;
}

/* Tier 4: Gold - Glowing gold */
.sponsor-card__badge--gold {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #fcd34d 100%);
    color: #78350f;
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.5), 0 0 40px rgba(245, 158, 11, 0.2);
    font-weight: 800;
}

/* Tier 5: Silver - Glowing silver */
.sponsor-card__badge--silver {
    background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 50%, #cbd5e1 100%);
    color: #334155;
    box-shadow: 0 0 15px rgba(148, 163, 184, 0.5), 0 0 30px rgba(100, 116, 139, 0.15);
    font-weight: 700;
}

/* Tier 6, 7, 8: VIP, Luncheon, Lanyard - Same blue theme */
.sponsor-card__badge--vip,
.sponsor-card__badge--luncheon,
.sponsor-card__badge--lanyard {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
    font-weight: 600;
}
.sponsor-card__price {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-sm);
}
.sponsor-card__price-original {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-400);
    text-decoration: line-through;
    display: none;
}
.sponsor-card__price-original--visible {
    display: block;
}
.sponsor-card__price-current {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--navy-800);
    line-height: 1.2;
}
.sponsor-card__price-current.sponsor-card__price-earlybird {
    color: var(--error);
}
.sponsor-card__price-current.sponsor-card__price-standard {
    color: var(--navy-800);
}
.sponsor-card__price-standard {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--navy-800);
    display: none;
}
.sponsor-card__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
}
.sponsor-card__body { padding: var(--space-xl); flex-grow: 1; }
.sponsor-card__benefits { display: flex; flex-direction: column; gap: var(--space-sm); }
.sponsor-card__benefits li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.5;
}
.sponsor-card__benefits li i { color: var(--gold-500); font-size: 0.75rem; margin-top: 4px; flex-shrink: 0; }
.sponsor-card__benefits li i.fa-check-circle { color: var(--success); }
.sponsor-card__more {
    color: var(--gray-400) !important;
    font-style: italic;
}
.sponsor-card__footer { padding: var(--space-lg) var(--space-xl); border-top: 1px solid var(--gray-200); }
.sponsorship__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}
.sponsorship__cta {
    text-align: center;
    margin-top: var(--space-2xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--gray-200);
}
.sponsorship__cta p {
    margin-bottom: var(--space-md);
    color: var(--gray-500);
}

@media (max-width: 1200px) { .sponsorship__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
    .sponsorship__grid { grid-template-columns: 1fr; }
    .sponsorship__toggle { flex-direction: column; border-radius: var(--radius-lg); }
    .sponsorship__toggle-btn { border-radius: var(--radius-md); }
}

/* ==========================================================================
   MODULE 8: REGISTRATION
   ========================================================================== */
.registration {
    padding: var(--space-4xl) 0;
    background: var(--gray-50);
}
.registration__container { max-width: 1280px; margin: 0 auto; padding: 0 var(--space-xl); }
.registration__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}
.registration__benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}
.registration__benefit {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.9375rem;
    color: var(--gray-600);
}
.registration__benefit i { color: var(--success); }
.registration__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}
.registration__detail {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}
.registration__detail i {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 197, 24, 0.1);
    border-radius: var(--radius-md);
    color: var(--gold-500);
}
.registration__detail strong { display: block; font-size: 0.875rem; color: var(--navy-800); }
.registration__detail span { font-size: 0.875rem; color: var(--gray-500); }
.registration__payment {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}
.registration__payment h4 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    margin-bottom: var(--space-md);
}
.registration__payment h4 i { color: var(--gold-500); }
.registration__payment p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: var(--space-sm);
}
.registration__payment-methods {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--gray-200);
}
.registration__payment-methods span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--gray-500);
}
.registration__form-wrapper {
    background: var(--navy-800);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-xl);
}
.registration__form { display: flex; flex-direction: column; gap: var(--space-lg); }
.registration__form-title {
    font-size: 1.5rem;
    color: var(--white);
    text-align: center;
}
.registration__form-subtitle {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    margin-top: calc(-1 * var(--space-md));
}
.form-group { display: flex; flex-direction: column; gap: var(--space-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
.form-label { font-size: 0.875rem; font-weight: 600; color: rgba(255, 255, 255, 0.9); }
.form-input {
    padding: 0.875rem var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--white);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.form-input::placeholder { color: rgba(255, 255, 255, 0.4); }
.form-input:focus {
    outline: none;
    border-color: var(--gold-500);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.15);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='rgba(255,255,255,0.6)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
    cursor: pointer;
}
.form-select option { background: var(--navy-800); color: var(--white); }
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}
.form-checkbox input { display: none; }
.form-checkbox__mark {
    width: 20px; height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    position: relative;
    transition: all var(--transition-fast);
}
.form-checkbox__mark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0);
    font-size: 0.625rem;
    color: var(--navy-900);
    transition: transform var(--transition-fast);
}
.form-checkbox input:checked + .form-checkbox__mark {
    background: var(--gold-500);
    border-color: var(--gold-500);
}
.form-checkbox input:checked + .form-checkbox__mark::after { transform: translate(-50%, -50%) scale(1); }
.registration__form-note {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: var(--space-md);
}
.registration__form-note i { color: var(--gold-500); margin-top: 2px; }

@media (max-width: 1024px) { .registration__grid { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* ==========================================================================
   MODULE 9: FAQ
   ========================================================================== */
.faq {
    padding: var(--space-4xl) 0;
    background: var(--white);
}
.faq__container { max-width: 900px; margin: 0 auto; padding: 0 var(--space-xl); }
.faq__grid { display: flex; flex-direction: column; gap: var(--space-md); }
.faq__item {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-fast);
}
.faq__item--active { border-color: var(--gold-500); }
.faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy-800);
    text-align: left;
}
.faq__question i {
    color: var(--gold-500);
    transition: transform var(--transition-fast);
}
.faq__item--active .faq__question i { transform: rotate(45deg); }
.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}
.faq__item--active .faq__answer { max-height: 200px; }
.faq__answer p {
    padding: 0 var(--space-xl) var(--space-lg);
    color: var(--gray-600);
    line-height: 1.7;
}

/* ==========================================================================
   FINAL CTA
   ========================================================================== */
.final-cta {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-900) 100%);
    text-align: center;
}
.final-cta__container { max-width: 800px; margin: 0 auto; padding: 0 var(--space-xl); }
.final-cta__title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--white);
    margin-bottom: var(--space-md);
}
.final-cta__text {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-2xl);
}
.final-cta__buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    position: relative;
    background: var(--navy-900);
    color: var(--white);
}
.footer__wave {
    position: absolute;
    top: -1px; left: 0; right: 0;
    height: 80px;
    color: var(--navy-900);
}
.footer__wave svg { width: 100%; height: 100%; }
.footer__content { padding: var(--space-4xl) 0 var(--space-xl); }
.footer__container { max-width: 1280px; margin: 0 auto; padding: 0 var(--space-xl); }
.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer__logo { display: flex; align-items: baseline; gap: var(--space-xs); margin-bottom: var(--space-md); }
.footer__logo-text {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
}
.footer__logo-year {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--gold-500);
}
.footer__tagline {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-lg);
    max-width: 300px;
    line-height: 1.6;
}
.footer__social { display: flex; gap: var(--space-sm); }
.footer__social-link {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: var(--white);
    transition: all var(--transition-fast);
}
.footer__social-link:hover { background: var(--gold-500); color: var(--navy-900); }
.footer__heading {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-lg);
}
.footer__links { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer__links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}
.footer__links a:hover { color: var(--gold-500); }
.footer__info { display: flex; flex-direction: column; gap: var(--space-md); }
.footer__info li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
}
.footer__info li i { color: var(--gold-500); margin-top: 3px; }
.footer__organizer {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}
.footer__chairman { font-size: 0.875rem; color: rgba(255, 255, 255, 0.5); line-height: 1.6; }
.footer__chairman strong { color: var(--white); }
.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
}
.footer__copyright, .footer__website { font-size: 0.875rem; color: rgba(255, 255, 255, 0.5); }
.footer__website a { color: var(--gold-500); }
.footer__website a:hover { text-decoration: underline; }

@media (max-width: 1024px) { .footer__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
    .footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
    .footer__bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
@keyframes marquee-reverse {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* Utility */
.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;
}