/* ============================================
   AI Ghost Hub - Modern Landing Page CSS
   ============================================ */

/* CSS Variables */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --darker-bg: #0a0e27;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --transition: all 0.3s ease;
}

/* ============================================
   Global Styles
   ============================================ */
* {
    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(--dark-bg) 0%, var(--darker-bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

code {
    background-color: rgba(99, 102, 241, 0.1);
    color: #fbbf24;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h3 {
    font-size: 1.5rem;
}

p {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

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

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* ============================================
   Navigation Bar
   ============================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    padding: 1rem 0;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    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: 40px;
    list-style: none;
}

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

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

.nav-cta {
    display: flex;
}

@media (max-width: 768px) {
    .nav-links {
        gap: 20px;
        font-size: 0.9rem;
    }

    .nav-cta {
        display: none;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        circle at 20% 50%,
        rgba(99, 102, 241, 0.15) 0%,
        transparent 50%
    ), radial-gradient(
        circle at 80% 80%,
        rgba(139, 92, 246, 0.15) 0%,
        transparent 50%
    );
    pointer-events: none;
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    margin-bottom: 20px;
    font-size: 3.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-icon {
    width: 300px;
    height: 300px;
    color: var(--primary-color);
    animation: float 6s ease-in-out infinite;
}

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

@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
        min-height: auto;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-visual {
        display: none;
    }
}

/* ============================================
   Section Header
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    margin-bottom: 20px;
}

.section-header p {
    font-size: 1.1rem;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(30, 41, 59, 0.8);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

/* ============================================
   Components Section
   ============================================ */
.components {
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.05) 100%);
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.component-card {
    background: rgba(30, 41, 59, 0.8);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
}

.component-card:hover {
    border-color: rgba(139, 92, 246, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
}

.component-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.component-header h3 {
    margin: 0;
}

.component-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.component-card p {
    margin-bottom: 20px;
    flex-grow: 1;
}

.component-features {
    list-style: none;
    margin-bottom: 20px;
}

.component-features li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.component-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

.component-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-block;
    transition: var(--transition);
}

.component-link:hover {
    gap: 10px;
}

/* ============================================
   Benefits Section
   ============================================ */
.benefits {
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
}

.benefits-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
}

.benefit-item {
    display: flex;
    gap: 30px;
}

.benefit-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.2;
    flex-shrink: 0;
}

.benefit-text h3 {
    margin-top: 0;
}

/* ============================================
   Quick Start Section
   ============================================ */
.quickstart {
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.05) 100%);
}

.quickstart-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.quickstart-steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step {
    display: flex;
    gap: 30px;
}

.step-number {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.step-content h3 {
    margin-top: 0;
    margin-bottom: 15px;
}

.step-content pre {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-top: 10px;
}

.step-content code {
    background: none;
    color: #10b981;
    padding: 0;
    font-size: 0.9rem;
}

.quickstart-requirements {
    background: rgba(30, 41, 59, 0.8);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    height: fit-content;
}

.quickstart-requirements h3 {
    margin-top: 0;
    margin-bottom: 20px;
}

.quickstart-requirements ul {
    list-style: none;
    margin-bottom: 25px;
}

.quickstart-requirements li {
    padding: 10px 0;
    color: var(--text-secondary);
    padding-left: 25px;
    position: relative;
}

.quickstart-requirements li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

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

    .quickstart-requirements {
        height: auto;
    }
}

/* ============================================
   Use Cases Section
   ============================================ */
.usecases {
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
}

.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.usecase-card {
    background: rgba(30, 41, 59, 0.8);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.usecase-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.1);
}

.usecase-card h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

/* ============================================
   CTA Section
   ============================================ */
.cta {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 16px;
}

.cta-content {
    text-align: center;
    padding: 80px 40px;
}

.cta-content h2 {
    margin-bottom: 20px;
    font-size: 2.5rem;
}

.cta-content p {
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .cta-buttons {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
    }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: rgba(10, 14, 39, 0.8);
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: 60px 0 20px;
    margin-top: 100px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition);
}

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

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

.footer-section li {
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    .section-padding {
        padding: 60px 0;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
    }

    .features-grid,
    .components-grid,
    .usecases-grid {
        grid-template-columns: 1fr;
    }

    .cta-content {
        padding: 50px 30px;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }
}

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
    }
}

.feature-card,
.component-card,
.usecase-card {
    animation: fadeInUp 0.6s ease forwards;
}

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

/* Smooth scrollbar styling for webkit browsers */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

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