/* ============================================
   ClineTools - Main Stylesheet
   Security-First AI Tools & Tutorials
   ============================================ */

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

/* Variables */
:root {
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-card: #1a2332;
    --bg-card-hover: #232f42;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-primary: #3b82f6;
    --accent-secondary: #10b981;
    --accent-warning: #f59e0b;
    --accent-purple: #8b5cf6;
    --gradient-trust: linear-gradient(135deg, #3b82f6, #10b981);
    --gradient-premium: linear-gradient(135deg, #f59e0b, #ec4899);
    --gradient-hero: linear-gradient(135deg, #1e3a5f 0%, #0a0f1a 50%, #0f1f2e 100%);
    --border-subtle: rgba(148, 163, 184, 0.1);
    --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.15);
}

/* Light theme override */
[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-subtle: rgba(15, 23, 42, 0.1);
    --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.08);
    --gradient-hero: linear-gradient(135deg, #e0ecff 0%, #f8fafc 50%, #e8f4f0 100%);
}

[data-theme="light"] nav {
    background: rgba(248, 250, 252, 0.9) !important;
    border-bottom: 1px solid var(--border-subtle);
}

[data-theme="light"] .logo-icon {
    color: white;
}

[data-theme="light"] footer {
    background: #0f172a;
    color: #f8fafc;
}

[data-theme="light"] footer a {
    color: #94a3b8;
}

[data-theme="light"] footer a:hover {
    color: #f8fafc;
}

html {
    scroll-behavior: smooth;
}

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

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 15, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-trust);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    font-weight: 700;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-trust);
    color: white;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
}

.btn-premium {
    background: var(--gradient-premium);
    color: white;
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: var(--gradient-hero);
    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(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--accent-secondary);
    margin-bottom: 24px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid var(--border-subtle);
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Trust Section */
.trust-section {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.trust-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.trust-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.trust-icon {
    width: 56px;
    height: 56px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.trust-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* Security Process Section */
.security-section {
    padding: 120px 0;
    position: relative;
}

.security-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.process-step {
    position: relative;
    padding: 32px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
}

.step-number {
    position: absolute;
    top: -16px;
    left: 24px;
    width: 32px;
    height: 32px;
    background: var(--gradient-trust);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.process-step h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
    margin-top: 8px;
}

.process-step p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.security-checks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 48px;
    padding: 32px;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
}

.check-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
}

.check-icon {
    width: 24px;
    height: 24px;
    background: rgba(16, 185, 129, 0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-secondary);
    flex-shrink: 0;
}

.check-item span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Premium Section */
.premium-section {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--accent-warning);
    box-shadow: 0 0 60px rgba(245, 158, 11, 0.15);
}

.pricing-card.featured::before {
    content: 'MOST POPULAR';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-premium);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.plan-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.plan-price {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.plan-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.plan-description {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.plan-features {
    list-style: none;
    margin-bottom: 32px;
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.95rem;
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features .check {
    color: var(--accent-secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

.plan-features .locked {
    color: var(--text-muted);
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
}

/* Tutorials Preview Section */
.tutorials-section {
    padding: 120px 0;
}

.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.tutorial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.tutorial-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
}

.tutorial-card.locked::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 15, 26, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-card.locked .lock-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    text-align: center;
}

.lock-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-premium);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.25rem;
}

.tutorial-thumbnail {
    height: 180px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.tutorial-content {
    padding: 24px;
}

.tutorial-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-primary);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.tutorial-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.tutorial-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: var(--gradient-hero);
    position: relative;
    text-align: center;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 32px;
}

/* Footer */
footer {
    padding: 64px 0 32px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 16px;
    max-width: 280px;
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    padding: 6px 0;
    transition: color 0.2s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--text-secondary);
    text-decoration: none;
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gradient-trust);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 30px rgba(59, 130, 246, 0.5);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        z-index: 1000;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        font-size: 1.25rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Floating elements animation */
.float {
    animation: float 6s ease-in-out infinite;
}

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

/* Page Enter Transition */
.page-enter {
    animation: pageEnter 0.5s ease-out;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Social Proof Section */
.social-proof-section {
    padding: 80px 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-subtle);
}

.social-proof-label {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
}

.logo-strip {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

.logo-item {
    opacity: 0.4;
    transition: opacity 0.3s;
}

.logo-item:hover {
    opacity: 0.8;
}

.logo-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-trust);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.testimonial-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}