/* ===== CSS VARIABLES ===== */
:root {
    --deep-blue: #071A2B;
    --blue-accent: #0E3A66;
    --light-orange: #F6A04D;
    --light-orange-hover: #e8922f;
    --soft-light: #F4F7FB;
    --glass-bg: rgba(14, 58, 102, 0.25);
    --glass-border: rgba(244, 247, 251, 0.12);
    --glass-shadow: 0 8px 32px rgba(7, 26, 43, 0.37);
    --card-bg: rgba(14, 58, 102, 0.18);
    --text-primary: #F4F7FB;
    --text-secondary: rgba(244, 247, 251, 0.75);
    --section-padding: 100px 0;
    --container-width: 1200px;
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Light theme overrides */
    --page-bg: #F4F7FB;
    --page-text: #071A2B;
    --page-text-secondary: #3a5a7c;
    --card-light-bg: #ffffff;
    --card-light-shadow: 0 4px 24px rgba(7, 26, 43, 0.08);
    --card-light-border: rgba(14, 58, 102, 0.08);
    --section-alt-bg: #eaf0f7;
    --nav-bg: rgba(255, 255, 255, 0.92);
    --nav-shadow: 0 2px 20px rgba(7, 26, 43, 0.06);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    background: var(--page-bg);
    color: var(--page-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== TECH PATTERN OVERLAY ===== */
.tech-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(244, 247, 251, 0.07) 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 1;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

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

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--nav-shadow);
    border-bottom: 1px solid var(--card-light-border);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 84px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-brand img {
    height: 64px;
    width: auto;
    border-radius: 6px;
}

.nav-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.nav-brand-text .college-name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--deep-blue);
}

.nav-brand-text .dept-name {
    font-size: 0.68rem;
    color: var(--page-text-secondary);
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--page-text-secondary);
    position: relative;
    padding: 4px 0;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--light-orange);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--deep-blue);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    background: linear-gradient(135deg, var(--light-orange), #e8922f);
    color: #fff !important;
    padding: 10px 24px !important;
    border-radius: 50px;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    box-shadow: 0 4px 15px rgba(246, 160, 77, 0.35);
    transition: var(--transition) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(246, 160, 77, 0.5);
}

/* Mobile menu toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--deep-blue);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 0 80px;
    background: var(--deep-blue);
    color: var(--text-primary);
}

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

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
}

.hero-bg .img-fallback {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--deep-blue), var(--blue-accent));
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
            rgba(7, 26, 43, 0.7) 0%,
            rgba(7, 26, 43, 0.85) 50%,
            rgba(7, 26, 43, 0.95) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 3;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(246, 160, 77, 0.15);
    border: 1px solid rgba(246, 160, 77, 0.3);
    color: var(--light-orange);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 30%, var(--light-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: clamp(1.1rem, 2.2vw, 1.45rem);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
    font-weight: 400;
    line-height: 1.6;
}

.hero-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(244, 247, 251, 0.08);
    border: 1px solid rgba(244, 247, 251, 0.15);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.88rem;
    color: var(--text-primary);
    font-weight: 500;
}

.hero-chip svg {
    width: 18px;
    height: 18px;
    stroke: var(--light-orange);
    fill: none;
    stroke-width: 2;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--light-orange), #e8922f);
    color: #fff;
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.05rem;
    box-shadow: 0 6px 30px rgba(246, 160, 77, 0.4);
    transition: var(--transition);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(246, 160, 77, 0.55);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(244, 247, 251, 0.08);
    border: 1.5px solid rgba(244, 247, 251, 0.25);
    color: var(--text-primary);
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(244, 247, 251, 0.15);
    transform: translateY(-3px);
}

/* Countdown */
.countdown-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.countdown-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.countdown {
    display: flex;
    gap: 12px;
}

.countdown-item {
    background: rgba(244, 247, 251, 0.06);
    border: 1px solid rgba(244, 247, 251, 0.12);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    text-align: center;
    min-width: 72px;
}

.countdown-item .num {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--light-orange);
    line-height: 1;
}

.countdown-item .unit {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

/* ===== LIGHT SECTION STYLES ===== */
.section-light {
    padding: var(--section-padding);
    background: var(--page-bg);
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--light-orange);
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: clamp(1.9rem, 3.5vw, 2.8rem);
    font-weight: 800;
    color: var(--deep-blue);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.08rem;
    color: var(--page-text-secondary);
    max-width: 620px;
    margin: 0 auto;
}

/* ===== WHY ATTEND CARDS ===== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.benefit-card {
    background: var(--card-light-bg);
    border: 1px solid var(--card-light-border);
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--card-light-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--light-orange), var(--blue-accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(7, 26, 43, 0.12);
}

.benefit-card:hover::before {
    opacity: 1;
}

.benefit-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(246, 160, 77, 0.12), rgba(14, 58, 102, 0.08));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--light-orange);
    fill: none;
    stroke-width: 2;
}

.benefit-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--deep-blue);
    margin-bottom: 10px;
}

.benefit-card p {
    font-size: 0.92rem;
    color: var(--page-text-secondary);
    line-height: 1.65;
}

/* ===== SCHEDULE SECTION ===== */
.schedule-timeline {
    position: relative;
    max-width: 820px;
    margin: 0 auto;
}

.schedule-timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--light-orange), var(--blue-accent));
    border-radius: 3px;
}

.schedule-item {
    position: relative;
    padding-left: 76px;
    margin-bottom: 40px;
}

.schedule-item:last-child {
    margin-bottom: 0;
}

.schedule-dot {
    position: absolute;
    left: 16px;
    top: 24px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--card-light-bg);
    border: 3px solid var(--light-orange);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.schedule-dot span {
    font-size: 0.65rem;
    font-weight: 800;
    color: var(--light-orange);
}

.schedule-card {
    background: var(--card-light-bg);
    border: 1px solid var(--card-light-border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--card-light-shadow);
    transition: var(--transition);
}

.schedule-card:hover {
    transform: translateX(6px);
    box-shadow: 0 8px 30px rgba(7, 26, 43, 0.1);
}

.schedule-card .date-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(246, 160, 77, 0.1), rgba(246, 160, 77, 0.05));
    border: 1px solid rgba(246, 160, 77, 0.2);
    color: var(--light-orange);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 14px;
}

.schedule-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--deep-blue);
    margin-bottom: 6px;
}

.schedule-card .time-info {
    font-size: 0.85rem;
    color: var(--page-text-secondary);
    margin-bottom: 14px;
}

.schedule-card ul {
    margin-bottom: 16px;
}

.schedule-card ul li {
    font-size: 0.9rem;
    color: var(--page-text-secondary);
    padding: 3px 0;
    padding-left: 18px;
    position: relative;
}

.schedule-card ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--light-orange);
    font-weight: 700;
}

.calendar-btns {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.cal-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--section-alt-bg);
    border: 1px solid var(--card-light-border);
    color: var(--blue-accent);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    transition: var(--transition);
}

.cal-btn:hover {
    background: var(--light-orange);
    color: #fff;
    border-color: var(--light-orange);
}

.cal-btn svg {
    width: 14px;
    height: 14px;
}

.full-series-btn {
    text-align: center;
    margin-top: 40px;
}

/* ===== MODULES (ACCORDION) ===== */
.modules-accordion {
    max-width: 820px;
    margin: 0 auto;
}

.module-item {
    background: var(--card-light-bg);
    border: 1px solid var(--card-light-border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--card-light-shadow);
    transition: var(--transition);
}

.module-item:hover {
    box-shadow: 0 6px 24px rgba(7, 26, 43, 0.1);
}

.module-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    cursor: pointer;
    background: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    transition: var(--transition);
}

.module-header:hover {
    background: rgba(14, 58, 102, 0.03);
}

.module-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.module-number {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--light-orange), #e8922f);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    flex-shrink: 0;
}

.module-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--deep-blue);
}

.module-header .module-date {
    font-size: 0.8rem;
    color: var(--page-text-secondary);
    font-weight: 500;
}

.module-chevron {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
    stroke: var(--page-text-secondary);
    flex-shrink: 0;
}

.module-item.active .module-chevron {
    transform: rotate(180deg);
}

.module-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.module-content-inner {
    padding: 0 28px 28px;
    border-top: 1px solid var(--card-light-border);
    padding-top: 20px;
}

.module-content-inner ul li {
    font-size: 0.92rem;
    color: var(--page-text-secondary);
    padding: 6px 0 6px 22px;
    position: relative;
    line-height: 1.6;
}

.module-content-inner ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--light-orange);
}

/* ===== SPEAKER SECTION ===== */
.speaker-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    max-width: 900px;
    margin: 0 auto;
}

.speaker-photo-frame {
    flex-shrink: 0;
    width: 260px;
    height: 300px;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    box-shadow: 0 16px 60px rgba(7, 26, 43, 0.15);
    border: 3px solid rgba(246, 160, 77, 0.3);
}

.speaker-photo-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.speaker-photo-frame .img-fallback {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--blue-accent), var(--deep-blue));
    display: flex;
    align-items: center;
    justify-content: center;
}

.speaker-info h3 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--deep-blue);
    margin-bottom: 6px;
}

.speaker-info .speaker-title {
    font-size: 1rem;
    color: var(--light-orange);
    font-weight: 600;
    margin-bottom: 4px;
}

.speaker-info .speaker-company {
    font-size: 0.9rem;
    color: var(--page-text-secondary);
    margin-bottom: 18px;
}

.speaker-info .speaker-bio {
    font-size: 0.95rem;
    color: var(--page-text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.speaker-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.speaker-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, rgba(246, 160, 77, 0.1), rgba(14, 58, 102, 0.06));
    border: 1px solid rgba(246, 160, 77, 0.2);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--deep-blue);
}

/* ===== REGISTRATION SECTION ===== */
.register-section {
    padding: var(--section-padding);
    background: var(--deep-blue);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.register-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.register-info h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.register-info p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 1rem;
    line-height: 1.7;
}

.register-alt-btns {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.alt-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(244, 247, 251, 0.06);
    border: 1px solid rgba(244, 247, 251, 0.15);
    color: var(--text-primary);
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.alt-btn:hover {
    background: rgba(244, 247, 251, 0.12);
}

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

.register-form-card {
    background: rgba(14, 58, 102, 0.3);
    border: 1px solid rgba(244, 247, 251, 0.1);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: 36px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    background: rgba(244, 247, 251, 0.06);
    border: 1.5px solid rgba(244, 247, 251, 0.12);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.form-group input::placeholder {
    color: rgba(244, 247, 251, 0.35);
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--light-orange);
    box-shadow: 0 0 0 3px rgba(246, 160, 77, 0.15);
}

.form-group select option {
    background: var(--deep-blue);
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--light-orange), #e8922f);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 6px;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(246, 160, 77, 0.4);
}

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success.show {
    display: block;
}

.form-success .check-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--light-orange), #e8922f);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.form-success h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.form-success p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-error {
    color: #ff6b6b;
    font-size: 0.78rem;
    margin-top: 4px;
    display: none;
}

.form-group.error input,
.form-group.error select {
    border-color: #ff6b6b;
}

.form-group.error .form-error {
    display: block;
}

/* ===== FAQ SECTION ===== */
.faq-accordion {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-light-bg);
    border: 1px solid var(--card-light-border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(7, 26, 43, 0.04);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 24px;
    cursor: pointer;
    background: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(14, 58, 102, 0.02);
}

.faq-question h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--deep-blue);
    flex: 1;
    padding-right: 16px;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
    stroke: var(--page-text-secondary);
    flex-shrink: 0;
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer-inner {
    padding: 0 24px 22px;
    color: var(--page-text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--deep-blue);
    color: var(--text-secondary);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 6px;
}

.footer-brand p {
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 12px;
}

.footer-col h4 {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    padding: 4px 0;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--light-orange);
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(244, 247, 251, 0.06);
    border: 1px solid rgba(244, 247, 251, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--light-orange);
    border-color: var(--light-orange);
}

.footer-social svg {
    width: 16px;
    height: 16px;
    fill: var(--text-secondary);
}

.footer-social a:hover svg {
    fill: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(244, 247, 251, 0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
}

.footer-disclaimer {
    color: rgba(244, 247, 251, 0.5);
    font-style: italic;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--nav-bg);
        backdrop-filter: blur(20px);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--card-light-border);
        box-shadow: 0 10px 30px rgba(7, 26, 43, 0.1);
    }

    .speaker-wrapper {
        flex-direction: column;
        text-align: center;
    }

    .speaker-tags {
        justify-content: center;
    }

    .register-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 70px 0;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-chips {
        gap: 8px;
    }

    .hero-chip {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    .countdown-item {
        min-width: 60px;
        padding: 10px 12px;
    }

    .countdown-item .num {
        font-size: 1.4rem;
    }

    .schedule-timeline::before {
        left: 18px;
    }

    .schedule-item {
        padding-left: 56px;
    }

    .schedule-dot {
        left: 6px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .speaker-photo-frame {
        width: 200px;
        height: 240px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-brand-text .college-name {
        font-size: 0.75rem;
    }

    .nav-brand img {
        height: 48px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .btn-primary,
    .btn-secondary {
        padding: 14px 28px;
        font-size: 0.95rem;
        width: 100%;
        justify-content: center;
    }

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }

    .countdown {
        gap: 8px;
    }

    .countdown-item {
        min-width: 54px;
        padding: 8px;
    }

    .countdown-item .num {
        font-size: 1.2rem;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {

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

    html {
        scroll-behavior: auto;
    }
}

:focus-visible {
    outline: 2px solid var(--light-orange);
    outline-offset: 3px;
}

/* Skip to content */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    padding: 12px 24px;
    background: var(--light-orange);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 700;
    z-index: 9999;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 16px;
}