/* ==========================================
   Claudia Code Landing Page - Styles
   ========================================== */

/* CSS Variables */
:root {
    --color-bg-dark: #0a0a0f;
    --color-bg-card: #12121a;
    --color-bg-card-hover: #1a1a25;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6b6b7b;
    --color-accent-purple: #8b5cf6;
    --color-accent-blue: #3b82f6;
    --color-accent-cyan: #06b6d4;
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 50%, #06b6d4 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Animated Background Particles */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 20s infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; animation-duration: 25s; }
.particle:nth-child(2) { left: 20%; animation-delay: 2s; animation-duration: 20s; }
.particle:nth-child(3) { left: 30%; animation-delay: 4s; animation-duration: 28s; }
.particle:nth-child(4) { left: 50%; animation-delay: 1s; animation-duration: 22s; }
.particle:nth-child(5) { left: 60%; animation-delay: 3s; animation-duration: 18s; }
.particle:nth-child(6) { left: 70%; animation-delay: 5s; animation-duration: 24s; }
.particle:nth-child(7) { left: 80%; animation-delay: 2s; animation-duration: 26s; }
.particle:nth-child(8) { left: 90%; animation-delay: 4s; animation-duration: 21s; }

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: var(--transition-medium);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Courier New', monospace;
    font-weight: 800;
}

.logo-text {
    letter-spacing: -0.5px;
}

.logo-text .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-cta {
    padding: 0.6rem 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50px;
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-fast);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.4);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--color-accent-purple);
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease;
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--color-accent-purple);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
    animation: fadeInUp 0.6s ease 0.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.btn-arrow {
    transition: var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.cta-hint {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Code Window Visual */
.hero-visual {
    display: none;
}

@media (min-width: 1024px) {
    .hero {
        flex-direction: row;
        gap: 4rem;
        padding: 0 4rem;
    }

    .hero-content {
        text-align: left;
        flex: 1;
    }

    .hero-subtitle {
        margin-left: 0;
    }

    .hero-visual {
        display: block;
        flex: 1;
        max-width: 500px;
        animation: fadeInRight 0.8s ease 0.4s both;
    }
}

.code-window {
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                0 0 0 1px rgba(255, 255, 255, 0.05);
}

.window-header {
    display: flex;
    gap: 0.5rem;
    padding: 1rem 1.25rem;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28ca42; }

.window-content {
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.code-line {
    display: flex;
    gap: 1rem;
    padding: 0.25rem 0;
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.code-line:nth-child(1) { animation-delay: 0.8s; }
.code-line:nth-child(2) { animation-delay: 1.2s; }
.code-line:nth-child(3) { animation-delay: 1.6s; }

.line-number {
    color: var(--color-text-muted);
    min-width: 20px;
}

.code .keyword { color: #c792ea; }
.code .variable { color: #82aaff; }
.code .string { color: #c3e88d; }
.code .function { color: #82aaff; }
.code .method { color: #ffcb6b; }
.code .comment { color: #546e7a; }

.typing .code::after {
    content: '|';
    animation: blink 1s infinite;
    color: var(--color-accent-purple);
}

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

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

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

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

/* Features Section */
.features {
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

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

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: 4rem;
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    position: relative;
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-medium);
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.3);
    background: var(--color-bg-card-hover);
}

.feature-card:hover .feature-glow {
    opacity: 1;
}

.feature-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-medium);
}

.feature-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-subtle);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-accent-purple);
}

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

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Teaser Section */
.teaser {
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.03) 50%, transparent 100%);
}

.teaser-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.teaser-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.teaser-content h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.teaser-content p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.teaser-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-medium);
}

.stat.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* CTA Section */
.cta-section {
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

.cta-container {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: 4rem 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-container h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: 1rem;
    position: relative;
}

.cta-container p {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

/* Footer */
.footer {
    padding: 4rem 2rem 2rem;
    position: relative;
    z-index: 1;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.footer-divider {
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .logo {
        font-size: 1.25rem;
    }

    .nav-cta {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .hero {
        padding: 7rem 1.5rem 3rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .btn {
        padding: 0.9rem 1.75rem;
    }

    .features {
        padding: 4rem 1.5rem;
    }

    .teaser {
        padding: 4rem 1.5rem;
    }

    .teaser-stats {
        gap: 2rem;
    }

    .stat-value {
        font-size: 2rem;
    }

    .cta-section {
        padding: 4rem 1.5rem;
    }

    .cta-container {
        padding: 3rem 1.5rem;
    }

    .footer {
        padding: 3rem 1.5rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .teaser-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
}

/* Smooth transitions for all interactive elements */
a, button {
    transition: var(--transition-fast);
}

/* Selection styling */
::selection {
    background: rgba(139, 92, 246, 0.3);
    color: white;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.3);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.5);
}