/* ===========================
   Global Styles & Variables
   =========================== */

:root {
    --primary-color: #6366f1;
    --secondary-color: #10b981;
    --tertiary-color: #f59e0b;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--light-bg) 0%, #ecfdf5 100%);
    color: var(--text-dark);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

body.dark-mode {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a2a4e 100%);
    color: #e2e8f0;
}

/* ===========================
   Scrollbar Styling
   =========================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* ===========================
   Navigation Bar
   =========================== */

.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

body.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
    flex: 1;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

body.dark-mode .nav-link {
    color: #cbd5e1;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-bar {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-dark);
    width: 200px;
    transition: border-color 0.3s ease, background 0.3s ease;
}

body.dark-mode .search-bar {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}

.search-bar:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

.theme-toggle {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: rotate(20deg);
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    max-width: 1400px;
    margin: 0 auto;
    padding: 6rem 2rem;
    display: flex;
    align-items: center;
    gap: 4rem;
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    z-index: 2;
    animation: slideInLeft 1s ease;
}

.hero-title {
    font-size: 4rem;
    font-weight: bold;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-button {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.4);
}

.hero-shape {
    flex: 1;
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
    position: relative;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===========================
   Daily Tip Section
   =========================== */

.daily-tip {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.tip-content {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(16, 185, 129, 0.1));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    gap: 2rem;
    align-items: center;
}

body.dark-mode .tip-content {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(16, 185, 129, 0.15));
    border-color: rgba(99, 102, 241, 0.3);
}

.tip-content i {
    font-size: 2rem;
    color: var(--tertiary-color);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.tip-content h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* ===========================
   Section Headers
   =========================== */

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
}

/* ===========================
   Universities Section
   =========================== */

.universities {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.universities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.university-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: var(--shadow);
}

body.dark-mode .university-card {
    background: rgba(30, 41, 59, 0.9);
    border-color: rgba(99, 102, 241, 0.3);
    color: #e2e8f0;
}

.university-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.location {
    display: inline-block;
    color: var(--text-light);
    font-size: 0.9rem;
}

.card-content {
    margin-top: 1rem;
}

.university-desc {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(16, 185, 129, 0.1));
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
}

body.dark-mode .tag {
    color: #60a5fa;
}

.learn-more-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.7rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
}

.learn-more-btn:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

/* ===========================
   Platforms Section
   =========================== */

.platforms {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(99, 102, 241, 0.05));
    border-radius: 30px;
    margin: 2rem auto;
}

body.dark-mode .platforms {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(99, 102, 241, 0.08));
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.platform-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

body.dark-mode .platform-card {
    background: rgba(30, 41, 59, 0.95);
    border-color: rgba(16, 185, 129, 0.3);
    color: #e2e8f0;
}

.platform-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.platform-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.platform-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.platform-desc {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.platform-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.platform-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.7rem 1.5rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--tertiary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
}

.platform-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(16, 185, 129, 0.3);
}

/* ===========================
   Tools Section
   =========================== */

.tools {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(245, 158, 11, 0.05));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

body.dark-mode .tool-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(245, 158, 11, 0.08));
    border-color: rgba(99, 102, 241, 0.3);
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--tertiary-color);
}

.tool-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.tool-content h4 {
    color: var(--secondary-color);
    margin: 1rem 0 0.5rem;
}

.tool-content ul {
    list-style: none;
    padding-left: 0;
}

.tool-content li {
    padding: 0.3rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-content li:before {
    content: '✓';
    color: var(--secondary-color);
    font-weight: bold;
}

.tool-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.7rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
}

.tool-btn:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

/* ===========================
   AI Section
   =========================== */

.ai-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(245, 158, 11, 0.05));
    border-radius: 30px;
    margin: 2rem auto;
}

body.dark-mode .ai-section {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(245, 158, 11, 0.08));
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.ai-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

body.dark-mode .ai-card {
    background: rgba(30, 41, 59, 0.95);
    border-color: rgba(99, 102, 241, 0.3);
    color: #e2e8f0;
}

.ai-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--tertiary-color);
}

.ai-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.ai-card h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
}

.ai-level {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(99, 102, 241, 0.2));
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--secondary-color);
}

.ai-description {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.ai-details {
    margin: 1rem 0;
    font-size: 0.9rem;
}

.ai-details h4 {
    color: var(--secondary-color);
    margin: 0.5rem 0;
}

.ai-details ol {
    list-style-position: inside;
    color: var(--text-light);
    line-height: 1.8;
}

.ai-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.7rem 1.5rem;
    background: linear-gradient(135deg, var(--tertiary-color), var(--primary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
}

.ai-btn:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(245, 158, 11, 0.3);
}

/* ===========================
   Roadmap Section
   =========================== */

.roadmap {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.roadmap-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.roadmap-stage {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(16, 185, 129, 0.1));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
}

body.dark-mode .roadmap-stage {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(16, 185, 129, 0.15));
    border-color: rgba(99, 102, 241, 0.3);
}

.roadmap-stage:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(10px);
}

.stage-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.stage-number {
    font-size: 3rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stage-header h3 {
    font-size: 1.5rem;
    flex: 1;
    color: var(--primary-color);
}

.stage-duration {
    background: linear-gradient(135deg, var(--secondary-color), var(--tertiary-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.stage-milestones {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.milestone {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.milestone i {
    color: var(--secondary-color);
    margin-top: 0.3rem;
    font-size: 1.2rem;
}

.roadmap-arrow {
    text-align: center;
    color: var(--primary-color);
    font-size: 2rem;
    animation: bounce 2s ease-in-out infinite;
}

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

/* ===========================
   Motivation Section
   =========================== */

.motivation {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(245, 158, 11, 0.05));
    border-radius: 30px;
}

body.dark-mode .motivation {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(245, 158, 11, 0.08));
}

.motivation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.motivation-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

body.dark-mode .motivation-card {
    background: rgba(30, 41, 59, 0.95);
    border-color: rgba(16, 185, 129, 0.3);
    color: #e2e8f0;
}

.motivation-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--tertiary-color);
}

.motivation-card i {
    font-size: 2.5rem;
    color: var(--tertiary-color);
    margin-bottom: 1rem;
}

.motivation-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

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

/* ===========================
   Quotes Section
   =========================== */

.quotes {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.quotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.quote-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(245, 158, 11, 0.05));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
    position: relative;
}

body.dark-mode .quote-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(245, 158, 11, 0.08));
    border-color: rgba(99, 102, 241, 0.3);
}

.quote-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--tertiary-color);
}

.quote-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 10px;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
}

.quote-text {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.8;
}

body.dark-mode .quote-text {
    color: #cbd5e1;
}

.quote-author {
    color: var(--primary-color);
    font-weight: 600;
    text-align: right;
}

/* ===========================
   Footer
   =========================== */

.footer {
    background: linear-gradient(135deg, var(--dark-bg), #1a2a4e);
    color: #cbd5e1;
    padding: 4rem 2rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 50%;
    transition: var(--transition);
    margin-bottom: 0;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #64748b;
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
        display: none;
    }

    .search-bar {
        width: 100%;
    }

    .hero {
        flex-direction: column;
        padding: 3rem 1rem;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-shape {
        width: 250px;
        height: 250px;
    }

    .universities-grid,
    .platforms-grid,
    .tools-grid,
    .ai-grid,
    .motivation-grid,
    .quotes-grid {
        grid-template-columns: 1fr;
    }

    .stage-milestones {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .stage-header {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-header p {
        font-size: 0.95rem;
    }

    .platform-card,
    .university-card,
    .tool-card,
    .ai-card,
    .motivation-card,
    .quote-card,
    .roadmap-stage {
        padding: 1rem;
    }

    .nav-actions {
        flex-direction: column;
        width: 100%;
    }

    .search-bar {
        width: 100%;
    }
}

/* ===========================
   Animation Classes
   =========================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.slide-up {
    animation: slideUp 0.5s ease;
}
/* ===========================
   Advanced Animations
   =========================== */

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(99, 102, 241, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.8);
    }
}

@keyframes rotate-gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes slide-in-top {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes flip-card {
    0% {
        transform: rotateY(0deg);
    }
    100% {
        transform: rotateY(180deg);
    }
}

@keyframes scale-in {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes gradient-shift {
    0% {
        background-position: 0% center;
    }
    50% {
        background-position: 100% center;
    }
    100% {
        background-position: 0% center;
    }
}

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

@keyframes swing {
    20% {
        transform: rotate(15deg);
    }
    40% {
        transform: rotate(-10deg);
    }
    60% {
        transform: rotate(5deg);
    }
    80% {
        transform: rotate(-5deg);
    }
    100% {
        transform: rotate(0deg);
    }
}

@keyframes fade-in-up {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.1);
    }
    50% {
        transform: scale(1);
    }
    75% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* ===========================
   Advanced Card Effects
   =========================== */

.card-with-shadow {
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.12),
        0 1px 2px rgba(0, 0, 0, 0.24);
    transition: box-shadow 0.3s ease;
}

.card-with-shadow:hover {
    box-shadow:
        0 10px 20px rgba(0, 0, 0, 0.15),
        0 3px 6px rgba(0, 0, 0, 0.10);
}

.card-floating {
    animation: fade-in-up 0.6s ease forwards;
}

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

.card-flip {
    perspective: 1000px;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card-flip:hover {
    animation: flip-card 0.6s ease;
}

/* ===========================
   Gradient Text Effects
   =========================== */

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--tertiary-color));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
}

.shimmer-text {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* ===========================
   Button Enhancements
   =========================== */

.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::before {
    width: 300px;
    height: 300px;
}

.btn-neon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
    transition: all 0.3s ease;
}

.btn-neon:hover {
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.8), inset 0 0 10px rgba(99, 102, 241, 0.3);
    transform: scale(1.05);
}

/* ===========================
   Badge Styles
   =========================== */

.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(16, 185, 129, 0.2));
    color: var(--primary-color);
    animation: scale-in 0.5s ease;
}

.badge-hot {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(249, 115, 22, 0.2));
    color: #ef4444;
}

.badge-trending {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(99, 102, 241, 0.2));
    color: #8b5cf6;
}

/* ===========================
   Loading States
   =========================== */

.skeleton {
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.1) 25%, rgba(0, 0, 0, 0.15) 50%, rgba(0, 0, 0, 0.1) 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.loading-spinner {
    border: 4px solid rgba(99, 102, 241, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
}

.loading-dots {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
}

.loading-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary-color);
    animation: bounce 1.4s infinite;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

/* ===========================
   Progress Bar
   =========================== */

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--tertiary-color));
    background-size: 200% 100%;
    animation: gradient-shift 2s ease infinite;
    border-radius: 10px;
    transition: width 0.3s ease;
}

/* ===========================
   Tooltip Styles
   =========================== */

.tooltip-container {
    position: relative;
    display: inline-block;
}

.tooltip {
    visibility: hidden;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.3s;
    box-shadow: var(--shadow);
}

.tooltip-container:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--primary-color) transparent transparent transparent;
}

/* ===========================
   Modal Styles
   =========================== */

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

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

.modal {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: scale-in 0.3s ease;
    position: relative;
}

body.dark-mode .modal {
    background: var(--dark-bg);
    color: #e2e8f0;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--primary-color);
}

/* ===========================
   Carousel Styles
   =========================== */

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
}

.carousel-slide {
    display: none;
    animation: fadeIn 0.5s ease;
}

.carousel-slide.active {
    display: block;
}

.carousel-controls {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s ease;
}

.carousel-dot.active {
    background: white;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    z-index: 10;
}

.carousel-nav:hover {
    background: rgba(0, 0, 0, 0.7);
}

.carousel-nav.prev {
    left: 1rem;
}

.carousel-nav.next {
    right: 1rem;
}

/* ===========================
   Notification Styles
   =========================== */

.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    padding: 1rem 2rem;
    border-radius: 10px;
    background: white;
    box-shadow: var(--shadow-lg);
    z-index: 3000;
    animation: slide-in-right 0.3s ease;
}

body.dark-mode .notification {
    background: var(--dark-bg);
    color: #e2e8f0;
}

.notification-success {
    border-left: 4px solid #10b981;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), transparent);
}

.notification-error {
    border-left: 4px solid #ef4444;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), transparent);
}

.notification-warning {
    border-left: 4px solid #f59e0b;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), transparent);
}

.notification-info {
    border-left: 4px solid #6366f1;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), transparent);
}

/* ===========================
   Code Block Styling
   =========================== */

.code-block {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.9));
    color: #e2e8f0;
    padding: 1.5rem;
    border-radius: 12px;
    overflow-x: auto;
    border: 1px solid rgba(99, 102, 241, 0.2);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 1rem 0;
}

.code-block code {
    display: block;
    white-space: pre;
}

/* ===========================
   Form Enhancements
   =========================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

body.dark-mode .form-label {
    color: #cbd5e1;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: white;
    color: var(--text-dark);
}

body.dark-mode .form-input,
body.dark-mode .form-textarea,
body.dark-mode .form-select {
    background: rgba(30, 41, 59, 0.8);
    color: #e2e8f0;
    border-color: rgba(99, 102, 241, 0.3);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-light);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===========================
   Utility Classes
   =========================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.rounded { border-radius: 8px; }
.rounded-lg { border-radius: 15px; }
.rounded-full { border-radius: 50%; }

.shadow-sm { box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: var(--shadow); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.hidden { display: none !important; }
.visible { display: block !important; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* ===========================
   Responsive Utilities
   =========================== */

@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
    .show-mobile { display: block !important; }
    
    .grid-responsive {
        grid-template-columns: 1fr !important;
    }
    
    .flex-responsive {
        flex-direction: column !important;
    }
}

@media (min-width: 769px) {
    .hide-desktop { display: none !important; }
    .show-desktop { display: block !important; }
}