:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --accent-cyan: #00f5d4;
    --accent-magenta: #f72585;
    --accent-yellow: #fee440;
    --accent-blue: #4361ee;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    --gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(0, 245, 212, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(247, 37, 133, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(67, 97, 238, 0.05) 0%, transparent 70%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Syne', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 4px;
}

/* Grain Overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1000;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-family: 'Space Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent-cyan);
    border-radius: 4px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(5, 1fr);
    gap: 1px;
    padding: 3px;
}

.logo-icon span {
    background: var(--bg-primary);
    border-radius: 1px;
}

.logo-icon span:nth-child(1),
.logo-icon span:nth-child(5),
.logo-icon span:nth-child(7),
.logo-icon span:nth-child(9),
.logo-icon span:nth-child(13),
.logo-icon span:nth-child(17),
.logo-icon span:nth-child(19),
.logo-icon span:nth-child(21),
.logo-icon span:nth-child(25) {
    background: var(--accent-cyan);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-cyan);
    transition: width 0.3s ease;
}

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

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

.nav-cta {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 0.7rem 1.5rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.nav-cta:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 30px rgba(0, 245, 212, 0.4);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 4rem 4rem;
    background: var(--gradient-mesh);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 245, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 245, 212, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    animation: slideIn 1s ease forwards;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 245, 212, 0.1);
    border: 1px solid rgba(0, 245, 212, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--accent-cyan);
    margin-bottom: 2rem;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.hero h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    padding: 1rem 2rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 245, 212, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 1rem 2rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    animation: floatIn 1s ease 0.3s forwards;
    opacity: 0;
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

.database-diagram {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.database-diagram::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.diagram-dots {
    position: absolute;
    top: 14px;
    left: 16px;
    display: flex;
    gap: 6px;
}

.diagram-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.diagram-dots span:nth-child(1) {
    background: #ff5f56;
}

.diagram-dots span:nth-child(2) {
    background: #ffbd2e;
}

.diagram-dots span:nth-child(3) {
    background: #27ca40;
}

.diagram-content {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.db-table {
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.db-table:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 245, 212, 0.1);
}

.db-table-header {
    background: rgba(0, 245, 212, 0.1);
    padding: 0.6rem 0.8rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent-cyan);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.db-table-header::before {
    content: '⊞';
    font-size: 0.9rem;
}

.db-table-fields {
    padding: 0.6rem 0.8rem;
}

.db-field {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-muted);
    padding: 0.2rem 0;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.db-field.pk {
    color: var(--accent-yellow);
}

.db-field.pk::before {
    content: '🔑';
    font-size: 0.6rem;
}

.db-field.fk {
    color: var(--accent-magenta);
}

.db-field.fk::before {
    content: '→';
}

/* Floating Elements */
.floating-element {
    position: absolute;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

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

    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.floating-element.el-1 {
    top: -30px;
    right: -20px;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-cyan), transparent);
    opacity: 0.3;
    border-radius: 20px;
    animation-delay: 0s;
}

.floating-element.el-2 {
    bottom: -20px;
    left: -30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-magenta), transparent);
    opacity: 0.3;
    border-radius: 50%;
    animation-delay: 2s;
}

/* Features Section */
.features {
    padding: 8rem 4rem;
    background: var(--bg-secondary);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
    display: block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 245, 212, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 245, 212, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

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

/* Schema Section */
.schema {
    padding: 8rem 4rem;
    background: var(--bg-primary);
    position: relative;
}

.schema-container {
    max-width: 1400px;
    margin: 0 auto;
}

.schema-visual {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 3rem;
    margin-top: 3rem;
    overflow-x: auto;
}

.schema-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    min-width: 900px;
}

.schema-table {
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.schema-table:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 245, 212, 0.1);
}

.schema-table-name {
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.15), rgba(67, 97, 238, 0.1));
    padding: 1rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-cyan);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.schema-table-body {
    padding: 0.75rem 1rem;
}

.schema-field {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    padding: 0.4rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.schema-field:last-child {
    border-bottom: none;
}

.schema-field-name {
    color: var(--text-primary);
}

.schema-field-type {
    color: var(--text-muted);
    font-size: 0.65rem;
}

.schema-field.primary .schema-field-name::before {
    content: '🔑 ';
}

.schema-field.foreign .schema-field-name {
    color: var(--accent-magenta);
}

/* Team Section */
.team {
    padding: 8rem 4rem;
    background: var(--bg-secondary);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.team-card {
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 245, 212, 0.3);
}

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    overflow: hidden;
    border: 3px solid var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 245, 212, 0.3);
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.team-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.team-card .matric {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.team-card .role {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Tech Stack */
.tech-stack {
    padding: 6rem 4rem;
    background: var(--bg-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.tech-item:hover {
    opacity: 1;
    transform: scale(1.1);
}

.tech-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.tech-item span {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Footer */
footer {
    padding: 4rem;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-info .course {
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--accent-cyan);
}

.footer-info .university {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-visual {
        order: 2;
    }

    .hero-description {
        margin: 0 auto 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .schema-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .features,
    .schema,
    .team {
        padding: 4rem 1.5rem;
    }

    .diagram-content {
        grid-template-columns: 1fr;
    }

    .schema-grid {
        grid-template-columns: 1fr;
        min-width: auto;
    }

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