:root {
    --primary: #007AFF;
    --primary-dark: #0055CC;
    --primary-light: #409CFF;
    --primary-subtle: #E8F2FF;
    --primary-hover: #0066DD;
    --secondary: #0055CC;
    --dark: #1C1C1E;
    --dark-secondary: #2C2C2E;
    --gray: #6B7280;
    --gray-light: #9CA3AF;
    --gray-subtle: #F3F4F6;
    --light: #F5F5F7;
    --white: #FFFFFF;
    --blue-gradient: linear-gradient(135deg, #007AFF 0%, #0055CC 50%, #003D99 100%);
    --blue-gradient-light: linear-gradient(135deg, #409CFF 0%, #007AFF 100%);
    --shadow-sm: 0 2px 8px rgba(0, 122, 255, 0.08);
    --shadow-md: 0 8px 30px rgba(0, 122, 255, 0.12);
    --shadow-lg: 0 20px 60px rgba(0, 122, 255, 0.20);
    --shadow-xl: 0 40px 80px rgba(0, 122, 255, 0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--white);
    color: var(--dark);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.navbar.scrolled {
    padding: 10px 0;
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
}

.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.25s ease;
    position: relative;
    letter-spacing: -0.2px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2.5px;
    background: var(--blue-gradient);
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover {
    color: var(--primary);
}

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

.nav-cta {
    background: var(--blue-gradient);
    color: white;
    border: none;
    padding: 10px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.25);
    letter-spacing: -0.2px;
}

.nav-cta:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 122, 255, 0.35);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
    background: none;
    border: none;
    padding: 4px 8px;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    background: var(--white);
    position: relative;
    overflow: hidden;
    padding-top: 76px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    min-height: 80vh;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-subtle);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.3px;
    width: fit-content;
    margin-bottom: 12px;
    border: 1px solid rgba(0, 122, 255, 0.08);
}

.hero-badge i {
    font-size: 0.7rem;
}

.hero-title {
    font-size: 4.2rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

.hero-title .highlight {
    background: var(--blue-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .highlight-light {
    color: var(--dark);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    line-height: 1.7;
    max-width: 480px;
    margin-bottom: 28px;
    font-weight: 400;
    letter-spacing: -0.2px;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--blue-gradient);
    color: white;
    border: none;
    box-shadow: 0 4px 24px rgba(0, 122, 255, 0.3);
    cursor: pointer;
    letter-spacing: -0.2px;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 122, 255, 0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--gray-subtle);
    color: var(--dark);
    border: 1px solid rgba(0, 0, 0, 0.06);
    cursor: pointer;
    letter-spacing: -0.2px;
}

.btn-secondary:hover {
    background: #E8E8EA;
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 8px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--dark);
    display: block;
    letter-spacing: -1px;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 400;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-element {
    position: absolute;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
    animation: float 6s ease-in-out infinite;
    animation-delay: var(--delay);
    box-shadow: 0 4px 20px rgba(0, 122, 255, 0.08);
    border: 1px solid rgba(0, 122, 255, 0.06);
}

.float-element:nth-child(1) { top: 5%; left: 8%; --delay: 0s; }
.float-element:nth-child(2) { top: 15%; right: 5%; --delay: 1.5s; }
.float-element:nth-child(3) { bottom: 25%; left: 2%; --delay: 3s; }
.float-element:nth-child(4) { bottom: 15%; right: 8%; --delay: 4.5s; }
.float-element:nth-child(5) { top: 45%; left: 45%; --delay: 2.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-18px) scale(1.06); }
}

.hero-image-container {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1;
    border-radius: var(--radius-xl);
    background: var(--blue-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 7rem;
    color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.hero-image-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
}

.hero-image-container::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
}

.hero-wave svg {
    display: block;
}

/* ===== SECTION STYLES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    background: var(--primary-subtle);
    color: var(--primary);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    border: 1px solid rgba(0, 122, 255, 0.06);
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1.5px;
    color: var(--dark);
}

.section-header h2 .highlight {
    background: var(--blue-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.8;
    font-weight: 400;
}

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

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.about-card {
    background: var(--white);
    padding: 44px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 122, 255, 0.08);
}

.about-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--blue-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: white;
    box-shadow: 0 8px 24px rgba(0, 122, 255, 0.25);
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.about-card p {
    color: var(--gray);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===== HIGHLIGHTS SECTION ===== */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.highlight-card {
    background: var(--white);
    padding: 28px 16px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.highlight-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.highlight-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1.3rem;
    color: var(--primary);
    transition: all 0.3s ease;
}

.highlight-card:hover .highlight-icon {
    background: var(--blue-gradient);
    color: white;
    transform: scale(1.05);
}

.highlight-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--dark);
}

.highlight-card p {
    font-size: 0.85rem;
    color: var(--gray);
    line-height: 1.5;
}

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

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    background: var(--gray-subtle);
}

.gallery-item img,
.gallery-item .video-container {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.gallery-overlay p {
    font-size: 0.85rem;
    opacity: 0.8;
}

.gallery-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}

.gallery-placeholder i {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.2;
}

/* ===== SPONSORS SECTION ===== */
.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.sponsor-card {
    background: var(--white);
    padding: 36px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.sponsor-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: rgba(0, 122, 255, 0.1);
}

.sponsor-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gray-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 2rem;
    color: var(--gray);
}

.sponsor-card p {
    color: var(--dark);
    font-weight: 500;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: white;
    padding: 64px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin: 16px 0;
    font-size: 0.95rem;
}

.footer-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

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

.footer-contact p {
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.footer-contact p i {
    color: var(--primary);
    width: 18px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.85rem;
}

/* ===== REGISTRATION MODAL ===== */
.registration-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    padding: 20px;
}

.registration-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    max-width: 520px;
    width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    padding: 40px;
    box-shadow: var(--shadow-xl);
}

.modal-content::-webkit-scrollbar {
    width: 4px;
}

.modal-content::-webkit-scrollbar-track {
    background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--gray-light);
    border-radius: 4px;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--gray);
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-subtle);
    transform: rotate(90deg);
}

.modal-progress {
    margin-bottom: 28px;
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    position: relative;
}

.progress-steps::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 20px;
    right: 20px;
    height: 2px;
    background: #E5E7EB;
    transform: translateY(-50%);
    z-index: 0;
}

.step {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #E5E7EB;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--gray);
    position: relative;
    z-index: 1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.step.active {
    background: var(--blue-gradient);
    color: white;
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.3);
}

.step.completed {
    background: var(--primary);
    color: white;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: #E5E7EB;
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--blue-gradient);
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
    letter-spacing: -0.5px;
}

/* ===== FORM STYLES ===== */
.form-step {
    display: none;
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-step.active {
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(16px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-group {
    margin-bottom: 22px;
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--dark);
    letter-spacing: -0.2px;
}

.form-input,
.form-select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #E5E7EB;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
    color: var(--dark);
    appearance: none;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.08);
}

.form-input.error,
.form-select.error {
    border-color: #EF4444;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.08);
}

.form-input.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.12);
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--blue-gradient);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.form-input:focus ~ .input-line {
    width: 100%;
    left: 0;
}

.form-nav {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-top: 28px;
}

.btn-next,
.btn-prev,
.btn-submit {
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.2px;
}

.btn-next {
    background: var(--blue-gradient);
    color: white;
    margin-left: auto;
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.25);
}

.btn-next:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 28px rgba(0, 122, 255, 0.35);
}

.btn-prev {
    background: var(--gray-subtle);
    color: var(--dark);
}

.btn-prev:hover {
    background: #E5E7EB;
}

.btn-submit {
    background: var(--blue-gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(0, 122, 255, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 122, 255, 0.4);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== REVIEW CARD ===== */
.review-card {
    background: var(--light);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.review-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--dark);
}

.review-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.review-item:last-child {
    border-bottom: none;
}

.review-label {
    color: var(--gray);
    font-size: 0.9rem;
}

.review-value {
    font-weight: 600;
    color: var(--dark);
}

/* ===== SUCCESS CONTENT ===== */
.success-content {
    text-align: center;
    padding: 20px 0;
}

.success-icon {
    font-size: 4.5rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.success-content h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--dark);
}

.success-content p {
    color: var(--gray);
    margin-bottom: 12px;
}

.token-display {
    font-size: 2.6rem;
    font-weight: 800;
    background: var(--blue-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 6px;
    padding: 20px;
    background-color: var(--light);
    border-radius: var(--radius-md);
    margin: 16px 0;
    font-family: 'SF Mono', 'Courier New', monospace;
    border: 2px solid rgba(0, 122, 255, 0.06);
}

.success-message {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-subtle);
    color: var(--primary);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.9rem;
    margin: 8px 0 24px;
    font-weight: 500;
}

.btn-close-modal {
    background: var(--blue-gradient);
    color: white;
    border: none;
    padding: 14px 48px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(0, 122, 255, 0.25);
}

.btn-close-modal:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 122, 255, 0.35);
}

/* ===== TOAST NOTIFICATION ===== */
.toast-notification {
    position: fixed;
    top: 100px;
    right: 24px;
    z-index: 3000;
    max-width: 400px;
    min-width: 320px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transform: translateX(calc(100% + 40px));
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast-notification.show {
    transform: translateX(0);
}

.toast-content {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
}

.toast-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary);
}

.toast-message {
    flex: 1;
}

.toast-message h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--dark);
}

.toast-message p {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
    line-height: 1.4;
}

.toast-progress {
    height: 3px;
    background: var(--blue-gradient);
    animation: toastProgress 60s linear forwards;
    border-radius: 0 0 3px 3px;
}

@keyframes toastProgress {
    from { width: 100%; }
    to { width: 0%; }
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablet */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.4rem;
    }
    
    .highlights-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-stats {
        gap: 16px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 60px 20px 40px;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.6rem;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
        font-size: 1.05rem;
    }
    
    .hero-badge {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        text-align: center;
    }
    
    .stat-item {
        text-align: center;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px;
        flex-direction: column;
        gap: 18px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .sponsors-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-contact p {
        justify-content: center;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .modal-content {
        padding: 28px 20px;
        margin: 10px;
        border-radius: var(--radius-lg);
    }
    
    .hero-image-container {
        max-width: 320px;
        font-size: 4rem;
    }
    
    .float-element {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .toast-notification {
        top: 80px;
        right: 16px;
        left: 16px;
        min-width: unset;
        max-width: unset;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .sponsors-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .form-nav {
        flex-direction: column;
    }
    
    .btn-next,
    .btn-prev,
    .btn-submit {
        width: 100%;
        justify-content: center;
    }
    
    .btn-next {
        margin-left: 0;
    }
    
    .token-display {
        font-size: 1.8rem;
        letter-spacing: 3px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .modal-content {
        padding: 20px 16px;
    }
    
    .review-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }
}