:root {
    --bg: #020617;
    --surface: #0f172a;
    --surface-glass: rgba(15, 23, 42, 0.85);
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);
    --secondary: #a855f7;
    --secondary-glow: rgba(168, 85, 247, 0.3);
    --accent: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.3);
    --text: #f1f5f9;
    --text-dim: #94a3b8;
    --border: rgba(255, 255, 255, 0.08);
    --border-bright: rgba(255, 255, 255, 0.15);
    --nav-height: 80px;
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Premium Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1), transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.1), transparent 40%),
        linear-gradient(rgba(2, 6, 23, 0.9), rgba(2, 6, 23, 0.9)),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0l30 30-30 30L0 30z' fill='%2394a3b8' fill-opacity='0.02' fill-rule='evenodd'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: -1;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(to right, var(--primary), var(--secondary), var(--primary-light));
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textGradient 6s linear infinite;
}

@keyframes textGradient {
    0% {
        background-position: 0% center;
    }

    50% {
        background-position: 100% center;
    }

    100% {
        background-position: 0% center;
    }
}

.sub-header {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 800;
    display: block;
    margin-bottom: 12px;
}

/* Layout Elements */
.section {
    padding: 120px 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.bg-alt {
    background: rgba(255, 255, 255, 0.015);
    max-width: 100%;
}

.overflow-hidden {
    overflow: hidden;
}

/* Navbar */
.navbar {
    height: var(--nav-height);
    background: var(--surface-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    cursor: pointer;
}

.logo i {
    color: var(--primary);
    filter: drop-shadow(0 0 10px var(--primary-glow));
}

.logo span span {
    color: var(--secondary);
    margin-left: -2px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: 600;
    font-size: 0.9rem;
    transition: 0.2s;
}

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

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 700;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    text-decoration: none;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white !important;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-glow {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px var(--primary-glow);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-bright);
    color: var(--text);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
}

/* Hero */
.hero {
    display: flex;
    align-items: center;
    min-height: 90vh;
    padding: 140px 60px 80px;
    gap: 60px;
}

.hero-content {
    flex: 1.2;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-dim);
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.action-row {
    display: flex;
    gap: 20px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.command-pills {
    background: rgba(0, 0, 0, 0.5);
    padding: 16px 24px;
    border-radius: 16px;
    border: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 540px;
    backdrop-filter: blur(10px);
}

.command-pills code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1.2rem;
    transition: 0.2s;
}

.copy-btn:hover {
    color: white;
    transform: scale(1.1);
}

.hero-visual {
    flex: 1;
    position: relative;
}

.banner-card {
    padding: 8px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-bright);
    transform: perspective(1000px) rotateY(-5deg);
    transition: 0.6s var(--ease);
}

.banner-card:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.hero-banner {
    width: 100%;
    border-radius: 20px;
    display: block;
}

/* Stats */
.stats-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding: 80px 60px;
}

.stat-card {
    text-align: center;
    padding: 40px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 24px;
    border: 1px solid transparent;
    transition: 0.3s;
}

.stat-card:hover {
    border-color: var(--border);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-5px);
}

.stat-card h3 {
    font-size: 3rem;
    margin-bottom: 8px;
}

.stat-card p {
    color: var(--text-dim);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    font-weight: 700;
}

/* Guide Steps */
.guide-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 60px;
}

.guide-item {
    padding: 48px 32px;
    position: relative;
    transition: 0.3s;
}

.guide-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary-glow);
}

.guide-num {
    position: absolute;
    top: 20px;
    right: 28px;
    font-size: 4rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
}

.code-snippet {
    background: #000;
    padding: 12px 16px;
    border-radius: 10px;
    margin-top: 24px;
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
}

/* Architecture Grid */
.architecture-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-top: 60px;
}

.layer-card {
    padding: 32px;
    margin-bottom: 24px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    transition: 0.3s;
}

.layer-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-glow);
}

.layer-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.layer-card ul {
    list-style: none;
    margin-top: 16px;
}

.layer-card ul li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.layer-card ul li i {
    color: var(--accent);
}

.arch-visual-pro {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.visual-node {
    width: 240px;
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border-bright);
    border-radius: 16px;
    text-align: center;
    font-weight: 800;
    font-size: 1.2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.visual-node.domain {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-color: var(--primary);
}

.visual-node.data {
    border-color: var(--secondary);
}

.visual-node.presentation {
    border-color: var(--accent);
}

.visual-glow {
    position: absolute;
    width: 300px;
    height: 400px;
    background: radial-gradient(circle, var(--primary-glow), transparent 70%);
    filter: blur(40px);
    z-index: 0;
}

/* Command Explorer Pro */
.command-explorer-pro {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: 720px;
    overflow: hidden;
    padding: 0;
    border-radius: 32px;
}

.explorer-sidebar {
    background: rgba(15, 23, 42, 0.5);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.search-box-pro {
    padding: 24px;
    position: relative;
}

.search-box-pro i {
    position: absolute;
    left: 40px;
    top: 40px;
    color: var(--text-dim);
}

.search-box-pro input {
    width: 100%;
    padding: 14px 14px 14px 44px;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 12px;
    color: white;
    font-family: var(--font-main);
}

.command-list-pro {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.cmd-btn-pro {
    width: 100%;
    padding: 16px 20px;
    background: transparent;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-weight: 500;
    border-radius: 12px;
    margin-bottom: 4px;
    cursor: pointer;
    transition: 0.2s;
}

.cmd-btn-pro:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
}

.cmd-btn-pro.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.explorer-content {
    padding: 48px;
    overflow-y: auto;
    background: var(--surface);
}

/* Spotlight Sections */
.spotlight-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.badge-pro {
    display: inline-block;
    padding: 6px 12px;
    background: var(--accent);
    color: #000;
    font-weight: 800;
    font-size: 0.75rem;
    border-radius: 6px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.feature-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 32px 0;
}

.pill {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.pill i {
    color: var(--primary);
}

.code-card {
    background: #000;
    border-radius: 16px;
    border: 1px solid var(--border-bright);
    overflow: hidden;
    margin-top: 32px;
}

.code-header {
    background: #1e293b;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red {
    background: #ff5f56;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #27c93f;
}

.file-path {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-left: 12px;
    font-family: var(--font-mono);
}

.code-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* Config Section */
.config-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 60px;
}

.config-grid {
    display: grid;
    grid-template-rows: repeat(3, 1fr);
    gap: 20px;
}

.config-item {
    padding: 24px;
}

.config-item h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.config-item code {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.config-code {
    padding: 0 !important;
    overflow: hidden;
}

.config-code .code-header {
    border-bottom: 1px solid var(--border);
}

.config-code pre {
    padding: 32px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #a5b4fc;
}

/* Chat Preview */
.chat-preview-section {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), transparent);
}

.chat-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: #000;
    border: 12px solid #1e293b;
    border-radius: 40px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.8);
    margin: 0 auto;
}

.app-header {
    background: #0f172a;
    padding: 40px 20px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-info b {
    font-size: 0.9rem;
}

.user-info span {
    font-size: 0.7rem;
    color: var(--accent);
}

.chat-messages {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 440px;
}

.bubble {
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.85rem;
    max-width: 80%;
}

.bubble.received {
    background: #1e293b;
    align-self: flex-start;
    border-bottom-left-radius: 2px;
}

.bubble.sent {
    background: var(--primary);
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}

.chat-input-area {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: #0f172a;
    border-top: 1px solid var(--border);
}

.input-field {
    background: #1e293b;
    padding: 8px 16px;
    border-radius: 20px;
    flex: 1;
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* Global Styling */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--accent);
    color: #000;
    padding: 12px 24px;
    border-radius: 100px;
    font-weight: 800;
    font-size: 0.9rem;
    z-index: 2000;
    transition: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.glass-panel {
    background: var(--surface-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 24px;
}

/* Social & Star Section Enhancement */
.star-section {
    padding-bottom: 160px;
}

.star-card {
    text-align: center;
    padding: 80px 40px;
    position: relative;
    overflow: hidden;
    max-width: 1000px;
    margin: 0 auto;
}

.community-highlights {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.c-tag {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 14px;
    border-radius: 100px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: 0.3s;
}

.c-tag i {
    font-size: 1rem;
}

.c-tag:hover {
    background: var(--surface);
    border-color: var(--primary);
    color: var(--text);
    transform: translateY(-2px);
}

.community-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 24px;
    filter: drop-shadow(0 0 15px var(--primary-glow));
    animation: bounceSlow 3s ease-in-out infinite;
}

@keyframes bounceSlow {

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

    50% {
        transform: translateY(-10px);
    }
}

.star-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05), transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.star-card h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.star-card p {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.social-btns {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.social-btns .btn {
    min-width: 200px;
    justify-content: center;
    padding: 18px 32px;
    border-radius: 16px;
    font-size: 1rem;
}

.btn-github {
    background: #24292e;
    color: white !important;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-github:hover {
    background: #2f363d;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.btn-linkedin {
    background: #0077b5;
    color: white !important;
}

.btn-linkedin:hover {
    filter: brightness(1.1);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 119, 181, 0.4);
}

.btn-coffee {
    background: #FFDD00;
    color: #000 !important;
}

.btn-coffee:hover {
    background: #ffea00;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 221, 0, 0.5);
}

/* Footer */
footer {
    padding: 80px 60px 40px;
    background: #000;
    border-top: 1px solid var(--border);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.f-col h4 {
    margin-bottom: 20px;
    font-size: 1rem;
}

.f-col a {
    display: block;
    color: var(--text-dim);
    text-decoration: none;
    margin-bottom: 12px;
    font-size: 0.9rem;
    transition: 0.2s;
}

.f-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    grid-column: 1 / -1;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 1100px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 180px;
    }

    .hero-visual {
        width: 100%;
        order: -1;
    }

    .architecture-grid,
    .spotlight-container,
    .chat-cols,
    .footer-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .stats-section,
    .guide-steps {
        grid-template-columns: 1fr 1fr;
    }

    .hero h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .stats-section,
    .guide-steps {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .command-explorer-pro {
        grid-template-columns: 1fr;
        height: auto;
    }

    .explorer-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
}