/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Colors - Minimal palette */
    --bg-dark: #0a0a0b;
    --bg-card: #141416;
    --bg-card-hover: #1a1a1e;
    --bg-section-alt: #0f0f11;

    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    --primary: #5C5BF9;
    --primary-hover: #4C4BE0;
    --accent: #ffffff;
    --z-index-nav: 100;
    --z-index-hero-content: 10;
    --z-index-hero-bg: -1;

    --border-color: #27272a;
    --border-light: #3f3f46;

    /* Typography */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.2s ease;
}

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

/* ================================
   LANDING PAGE STYLES
   ================================ */

.landing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.landing-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.nav-cta {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.nav-cta:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
    background: var(--bg-card);
}

/* Hero Section */
.hero {
    height: 200vh;
    /* Reduced scroll space to 50% */
    position: relative;
    padding: 0;
    /* Reset padding as it's handled by sticky container */
}

.hero-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 6rem;
    overflow: hidden;
}

#hero-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: var(--z-index-hero-bg);
    opacity: 0.6;
    /* Slight dim for text readability */
}

.hero-text-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: var(--z-index-hero-content);
    will-change: transform;
}

.hero-content {
    max-width: 720px;
    margin-bottom: 4rem;
    position: relative;
    z-index: var(--z-index-hero-content);
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 1.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(92, 91, 249, 0.3);
    border-radius: var(--radius-full);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

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

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* CTA Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.cta-button.primary {
    background-color: var(--primary);
    color: white;
}

.cta-button.primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.cta-button.large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.cta-button .arrow {
    transition: transform 0.2s;
}

.cta-button:hover .arrow {
    transform: translateX(4px);
}

/* Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    position: relative;
    z-index: var(--z-index-hero-content);
}

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

.stat-number {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* ================================
   SECTION STYLES
   ================================ */

.section {
    padding: 6rem 2rem;
}

.section-container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 3rem;
}

/* Problem Section */
.problem-section {
    background: var(--bg-section-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color 0.2s ease;
}

.problem-card:hover {
    border-color: var(--border-light);
}

.problem-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary);
    display: flex;
    align-items: center;
}

.problem-icon svg {
    width: 32px;
    height: 32px;
}

.problem-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.problem-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Solution Section */
.solution-section {
    background: var(--bg-dark);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.solution-card {
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.solution-card:hover {
    border-color: var(--primary);
    background: var(--bg-card);
}

.solution-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.solution-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.solution-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* About Section */
.about-section {
    background: var(--bg-section-alt);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: border-color 0.2s ease;
}

.team-card:hover {
    border-color: var(--border-light);
}

.team-avatar {
    width: 64px;
    height: 64px;
    background: var(--bg-card-hover);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.team-avatar span {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.team-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.team-role {
    font-size: 0.8125rem;
    color: var(--primary);
    font-weight: 500;
    display: block;
    margin-bottom: 1rem;
}

.team-bio {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.team-contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    margin-top: auto;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.team-contact-btn:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* CTA Section */
.cta-section {
    background: var(--bg-dark);
    text-align: center;
    padding: 5rem 2rem;
    border-top: 1px solid var(--border-color);
}

.cta-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.cta-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    padding: 3rem 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-section-alt);
}

.footer-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ================================
   BROWSE PAGE STYLES
   ================================ */

.browse-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.search-container {
    flex: 1;
    max-width: 600px;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    transition: border-color 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

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

.main-content {
    display: flex;
    flex: 1;
}

/* Filters Sidebar */
.filters-sidebar {
    width: 300px;
    padding: 1.5rem;
    border-right: 1px solid var(--border-color);
    flex-shrink: 0;
    background: var(--bg-section-alt);
    overflow-y: auto;
    max-height: calc(100vh - 65px);
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.filter-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.clear-btn {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-full);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

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

.filter-group {
    margin-bottom: 1.25rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.filter-group h3 {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.875rem;
    font-weight: 600;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.875rem;
    cursor: pointer;
    padding: 0.375rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
    color: var(--text-secondary);
}

.filter-option:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.filter-option input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
}

.filter-option input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
}

.filter-option input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.6rem;
    font-weight: bold;
}

.filter-option input[type="checkbox"]:hover {
    border-color: var(--primary);
}

/* Date Filter Styles */
.date-filter-container {
    display: flex;
    gap: 0.75rem;
}

.date-input-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.date-input-group label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.date-input {
    width: 100%;
    padding: 0.5rem 0.625rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    transition: all 0.2s;
}

.date-input:focus {
    outline: none;
    border-color: var(--primary);
}

.date-input::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.5;
    cursor: pointer;
    transition: opacity 0.2s;
}

.date-input::-webkit-calendar-picker-indicator:hover {
    opacity: 0.9;
}

.date-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.75rem;
}

.date-preset-btn {
    flex: 1;
    min-width: calc(50% - 0.2rem);
    padding: 0.5rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 500;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all 0.2s;
    cursor: pointer;
    text-align: center;
}

.date-preset-btn:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

.date-preset-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Location Input */
.location-input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.location-input:focus {
    outline: none;
    border-color: var(--primary);
}

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

/* Tags Filter */
.tags-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.tag-checkbox {
    display: none;
}

.tag-label {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.tag-label:hover {
    border-color: var(--primary);
    color: var(--text-secondary);
}

.tag-checkbox:checked+.tag-label {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Hackathons Grid */
.hackathons-grid {
    flex: 1;
    padding: 2rem;
    background: var(--bg-dark);
}

.results-header {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

/* Hackathon Card */
.hackathon-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hackathon-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.tag {
    font-size: 0.6875rem;
    padding: 0.25rem 0.625rem;
    background: var(--bg-card-hover);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
}

.status-badge {
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.status-upcoming {
    background: rgba(92, 91, 249, 0.15);
    color: var(--primary);
}

.status-ongoing {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.status-past {
    background: rgba(113, 113, 122, 0.15);
    color: var(--text-muted);
}

/* Mode Tags */
.mode-online {
    background: rgba(147, 197, 253, 0.15);
    color: #93c5fd;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.mode-offline {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.mode-hybrid {
    background: rgba(29, 78, 216, 0.2);
    color: #93c5fd;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* Card Badges */
.card-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Team Badges */
.team-badge {
    font-size: 0.625rem;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.team-badge.team-team {
    background: rgba(139, 92, 246, 0.15);
    color: #a78bfa;
}

.team-badge.team-individual {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.team-badge.team-both {
    background: rgba(251, 146, 60, 0.15);
    color: #fb923c;
}

.team-size {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.participants-count {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Registration Status */
.registration-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 500;
}

.reg-open {
    color: #4ade80;
}

.reg-closed {
    color: #f87171;
}

.status-light {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    margin-right: 4px;
}

.reg-open .status-light {
    background-color: #22c55e;
}

.reg-closed .status-light {
    background-color: #ef4444;
}

/* View Button */
.view-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.25rem;
    background-color: var(--primary);
    color: white;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    border: none;
    text-align: center;
    line-height: 1;
}

.view-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 580px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
    transform: translateY(10px);
    transition: transform 0.2s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: var(--bg-card-hover);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1.125rem;
}

.modal-close:hover {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.modal-header {
    margin-bottom: 1.5rem;
    padding-right: 2.5rem;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.modal-body {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.modal-section {
    margin-bottom: 1.5rem;
}

.modal-section h4 {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.clickable-card {
    cursor: pointer;
    position: relative;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.no-results.hidden {
    display: none;
}

/* Responsive */
@media (max-width: 768px) {
    .landing-nav {
        padding: 1rem 1.5rem;
    }

    .hero {
        padding: 7rem 1.5rem 4rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .section {
        padding: 4rem 1.5rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .filters-sidebar {
        display: none;
    }

    .nav {
        padding: 1rem;
    }

    .hackathons-grid {
        padding: 1.5rem;
    }

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