/* ===== CSS Variables ===== */
:root {
    --color-primary: #2D5BFF;
    --color-primary-dark: #1E3FAD;
    --color-primary-light: #E8EDFF;
    --color-accent: #FF6B35;
    --color-text: #1A1A2E;
    --color-text-light: #6B7280;
    --color-background: #FFFFFF;
    --color-background-alt: #F8FAFC;
    --color-border: #E5E7EB;

    --font-serif: 'DM Serif Display', Georgia, serif;
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

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

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: var(--transition);
}

.nav-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

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

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--color-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
}

.nav-cta:hover {
    background: var(--color-primary-dark) !important;
    color: white !important;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 550px;
    margin: 0 auto var(--spacing-lg);
}

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

/* Hero background shapes */
.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-primary-light), transparent);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #FFF0EB, transparent);
    bottom: 100px;
    left: -50px;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #E8EDFF, transparent);
    bottom: -50px;
    right: 20%;
}

/* ===== Section Styles ===== */
.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-intro {
    font-size: 1.25rem;
    color: var(--color-text-light);
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

/* ===== About Section ===== */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--color-background);
}

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

.about-card {
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.about-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.about-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

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

/* ===== Not Section ===== */
.not-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-text);
    color: white;
}

.not-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.not-content h2 {
    font-size: clamp(2rem, 5vw, 2.5rem);
    margin-bottom: var(--spacing-lg);
}

.not-content em {
    color: var(--color-accent);
}

.not-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.not-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    justify-content: center;
}

.not-x {
    color: var(--color-accent);
    font-size: 1.25rem;
    font-weight: 700;
}

.not-instead {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Aims Section ===== */
.aims {
    padding: var(--spacing-2xl) 0;
    background: var(--color-background-alt);
}

.aims-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.aim-item {
    padding: var(--spacing-lg);
}

.aim-number {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.aim-item h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.aim-item p {
    color: var(--color-text-light);
}

/* ===== Project Ideas Section ===== */
.ideas {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e8edff 50%, #f0e6ff 100%);
    position: relative;
    overflow: hidden;
}

.ideas::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(45, 91, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.ideas::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.ideas .container {
    position: relative;
    z-index: 1;
}

.ideas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.idea-category {
    background: white;
    border-radius: var(--radius-lg);
    padding: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.8);
    overflow: hidden;
    position: relative;
}

.idea-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.idea-category:nth-child(1)::before { background: linear-gradient(90deg, #FF6B6B, #FFE66D); }
.idea-category:nth-child(2)::before { background: linear-gradient(90deg, #4FACFE, #00F2FE); }
.idea-category:nth-child(3)::before { background: linear-gradient(90deg, #667EEA, #764BA2); }
.idea-category:nth-child(4)::before { background: linear-gradient(90deg, #11998E, #38EF7D); }
.idea-category:nth-child(5)::before { background: linear-gradient(90deg, #F093FB, #F5576C); }
.idea-category:nth-child(6)::before { background: linear-gradient(90deg, #FFB347, #FFCC33); }

.idea-category:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.idea-category:hover::before {
    opacity: 1;
}

.idea-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.8) 0%, transparent 100%);
}

.idea-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    position: relative;
}

.idea-icon::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 19px;
    background: inherit;
    opacity: 0.3;
    filter: blur(8px);
    z-index: -1;
}

.idea-icon.creative {
    background: linear-gradient(135deg, #FF6B6B, #FFE66D);
    color: white;
}

.idea-icon.tech {
    background: linear-gradient(135deg, #4FACFE, #00F2FE);
    color: white;
}

.idea-icon.writing {
    background: linear-gradient(135deg, #667EEA, #764BA2);
    color: white;
}

.idea-icon.learning {
    background: linear-gradient(135deg, #11998E, #38EF7D);
    color: white;
}

.idea-icon.community {
    background: linear-gradient(135deg, #F093FB, #F5576C);
    color: white;
}

.idea-icon.business {
    background: linear-gradient(135deg, #FFB347, #FFCC33);
    color: white;
}

.idea-header h3 {
    font-size: 1.3rem;
    margin: 0;
    color: var(--color-text);
    font-weight: 500;
}

.idea-list {
    list-style: none;
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    margin: 0;
}

.idea-list li {
    padding: var(--spacing-sm) var(--spacing-md);
    margin: 0 calc(-1 * var(--spacing-md));
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    border-left: 3px solid transparent;
}

.idea-list li:hover {
    background: linear-gradient(90deg, rgba(45, 91, 255, 0.06) 0%, rgba(45, 91, 255, 0.02) 100%);
    border-left-color: var(--color-primary);
    transform: translateX(4px);
}

.idea-list li::after {
    content: '';
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%) translateX(-5px);
    opacity: 0;
    transition: all 0.3s ease;
    width: 20px;
    height: 20px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%232D5BFF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14'%3E%3C/path%3E%3Cpath d='M12 5l7 7-7 7'%3E%3C/path%3E%3C/svg%3E") no-repeat center;
}

.idea-list li:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.idea-name {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.idea-list li:hover .idea-name {
    color: var(--color-primary);
}

.idea-desc {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
    padding-right: 24px;
}

.ideas-cta {
    text-align: center;
    padding: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.ideas-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(45, 91, 255, 0.02) 0%, rgba(255, 107, 53, 0.02) 100%);
    pointer-events: none;
}

.ideas-cta p {
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    position: relative;
    font-weight: 500;
}

.ideas-cta .btn {
    position: relative;
}

/* Fancy hover effect for category count badge */
.idea-category .idea-count {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-background-alt);
    color: var(--color-text-light);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.idea-category:hover .idea-count {
    opacity: 1;
    transform: translateY(0);
}

/* Ideas section responsive */
@media (max-width: 1024px) {
    .ideas-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .idea-category:hover {
        transform: translateY(-8px) scale(1.01);
    }
}

@media (max-width: 768px) {
    .ideas-grid {
        grid-template-columns: 1fr;
    }

    .idea-category {
        max-width: 400px;
        margin: 0 auto;
    }

    .idea-list li::after {
        display: none;
    }

    .idea-list li:hover {
        transform: none;
    }
}

/* ===== Events Section ===== */
.events {
    padding: var(--spacing-2xl) 0;
    background: var(--color-background);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.event-card {
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.event-card:hover {
    border-color: var(--color-primary);
}

.event-featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border: none;
}

.event-featured:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.event-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.event-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.event-details {
    margin-bottom: var(--spacing-md);
}

.event-details p {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.event-featured .event-details p {
    opacity: 0.9;
}

.event-frequency {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.event-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.event-featured .event-description {
    color: rgba(255, 255, 255, 0.9);
}

.event-featured .btn-primary {
    background: white;
    color: var(--color-primary);
}

.event-featured .btn-primary:hover {
    background: var(--color-background-alt);
}

/* ===== Join Section ===== */
.join {
    padding: var(--spacing-2xl) 0;
    background: var(--color-primary-light);
}

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

.join-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-md);
}

.join-content > p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.join-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
}

/* ===== Founders Section ===== */
.founders {
    padding: var(--spacing-2xl) 0;
    background: var(--color-background);
}

.founders-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.founder-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.founder-avatar {
    width: 80px;
    height: 80px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin: 0 auto var(--spacing-md);
}

.founder-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.founder-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.founder-college {
    color: var(--color-primary) !important;
    font-weight: 500;
}

/* ===== Footer ===== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: var(--color-text);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    opacity: 0.7;
}

.footer-tagline {
    margin-top: var(--spacing-sm);
    font-style: italic;
}

.footer-links h4 {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

.footer-links a {
    display: block;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-primary-light);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding-top: 100px;
    }

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

    .event-featured {
        grid-column: span 1;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .not-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .not-grid {
        grid-template-columns: 1fr;
    }

    .about-grid,
    .aims-grid,
    .events-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    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 scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

/* Hero shapes floating animation */
.shape-1 {
    animation: float 6s ease-in-out infinite;
}

.shape-2 {
    animation: float 8s ease-in-out infinite;
    animation-delay: -2s;
}

.shape-3 {
    animation: float 7s ease-in-out infinite;
    animation-delay: -4s;
}

/* Scroll-triggered animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Staggered animation delays for grid items */
.about-card:nth-child(1) { transition-delay: 0.1s; }
.about-card:nth-child(2) { transition-delay: 0.2s; }
.about-card:nth-child(3) { transition-delay: 0.3s; }
.about-card:nth-child(4) { transition-delay: 0.4s; }

.aim-item:nth-child(1) { transition-delay: 0.1s; }
.aim-item:nth-child(2) { transition-delay: 0.2s; }
.aim-item:nth-child(3) { transition-delay: 0.3s; }
.aim-item:nth-child(4) { transition-delay: 0.4s; }

.idea-category:nth-child(1) { transition-delay: 0.1s; }
.idea-category:nth-child(2) { transition-delay: 0.2s; }
.idea-category:nth-child(3) { transition-delay: 0.3s; }
.idea-category:nth-child(4) { transition-delay: 0.4s; }
.idea-category:nth-child(5) { transition-delay: 0.5s; }
.idea-category:nth-child(6) { transition-delay: 0.6s; }

.event-card:nth-child(1) { transition-delay: 0.1s; }
.event-card:nth-child(2) { transition-delay: 0.2s; }
.event-card:nth-child(3) { transition-delay: 0.3s; }
.event-card:nth-child(4) { transition-delay: 0.4s; }

/* Icon hover animations */
.about-icon {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-card:hover .about-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-md);
}

.idea-icon {
    transition: transform 0.3s ease;
}

.idea-category:hover .idea-icon {
    transform: scale(1.1);
}

/* Button hover animations */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

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

/* Founder avatar pulse on hover */
.founder-avatar {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.founder-card:hover .founder-avatar {
    transform: scale(1.1);
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

/* Event badge pulse */
.event-badge {
    animation: pulse 2s ease-in-out infinite;
}

/* Smooth underline animation for nav links */
.nav-links a:not(.nav-cta) {
    position: relative;
}

.nav-links a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-links a:not(.nav-cta):hover::after {
    width: 100%;
}

/* ===== Typewriter Effect ===== */
.typewriter {
    border-right: 3px solid var(--color-primary);
    animation: blink 0.7s step-end infinite;
}

@keyframes blink {
    0%, 100% { border-color: var(--color-primary); }
    50% { border-color: transparent; }
}

/* ===== Floating Emojis ===== */
.floating-emojis {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-emoji {
    position: absolute;
    font-size: 2rem;
    left: var(--x);
    top: var(--y);
    opacity: 0.6;
    animation: floatEmoji 8s ease-in-out infinite;
    animation-delay: var(--delay);
}

@keyframes floatEmoji {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.6;
    }
    25% {
        transform: translateY(-20px) rotate(10deg);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-10px) rotate(-5deg);
        opacity: 0.6;
    }
    75% {
        transform: translateY(-25px) rotate(5deg);
        opacity: 0.7;
    }
}

/* ===== Stats Section ===== */
.stats {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    display: block;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-plus {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3rem);
    vertical-align: top;
}

.stat-infinity {
    font-size: clamp(3rem, 7vw, 5rem);
    display: block;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    animation: pulse 2s ease-in-out infinite;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }
}

/* ===== Random Idea Generator ===== */
.idea-generator {
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.idea-generator::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotateGradient 10s linear infinite;
}

@keyframes rotateGradient {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.generator-content {
    position: relative;
    z-index: 1;
}

.generator-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

.generator-icon svg {
    stroke: white;
}

.idea-generator h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.generator-result {
    font-size: 1.2rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.generator-result.fade-out {
    opacity: 0;
}

.generator-result.fade-in {
    animation: fadeInScale 0.3s ease;
}

@keyframes fadeInScale {
    0% {
        opacity: 0;
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.generator-btn {
    background: white;
    color: #667EEA;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.generator-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.generator-btn.spinning .btn-icon {
    animation: spin 0.3s linear;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

/* ===== FAQ Section ===== */
.faq {
    padding: var(--spacing-2xl) 0;
    background: var(--color-background-alt);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

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

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

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== Join Button Celebration Effect ===== */
.btn.celebrate {
    animation: wiggle 0.5s ease;
}

@keyframes wiggle {
    0%, 100% { transform: translateY(-2px) rotate(0deg); }
    25% { transform: translateY(-2px) rotate(-3deg); }
    75% { transform: translateY(-2px) rotate(3deg); }
}

/* ===== Utility Classes ===== */
.text-center {
    text-align: center;
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}