/* ========================================
   Modern CSS Reset & Base
   ======================================== */

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

:root {
    /* Color System - Modern, not typical blue */
    --color-bg: #0A0E14;
    --color-bg-light: #131920;
    --color-bg-card: #1A1F2C;
    --color-surface: #212836;

    --color-primary: #00F0FF;
    --color-primary-glow: rgba(0, 240, 255, 0.3);
    --color-accent: #FF3366;
    --color-accent-glow: rgba(255, 51, 102, 0.3);

    --color-text: #E8ECF2;
    --color-text-dim: #8B95A8;
    --color-text-muted: #5C6575;

    --color-success: #00FF94;
    --color-warning: #FFA800;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Animations */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Animated Background
   ======================================== */

.bg-gradient {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 51, 102, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(0, 255, 148, 0.05) 0%, transparent 50%);
    z-index: -2;
    animation: bgRotate 30s linear infinite;
}

@keyframes bgRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    opacity: 0.3;
}

/* ========================================
   Navigation
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 20, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* ========================================
   Hero Section
   ======================================== */

.hero {
    padding: 10rem 2rem 4rem;
    max-width: 1280px;
    margin: 0 auto;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease-out;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

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

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-dim);
    line-height: 1.6;
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.stat {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    transition: var(--transition);
}

.stat:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

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

.hero-cta {
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.download-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.hero-trust {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Buttons
   ======================================== */

.btn-primary,
.btn-secondary,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: var(--font-sans);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #0088FF);
    color: var(--color-bg);
    box-shadow: 0 4px 20px var(--color-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-dim);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
}

.btn-primary.large,
.btn-ghost.large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.btn-meta {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
}

/* ========================================
   Demo Terminal
   ======================================== */

.demo-container {
    max-width: 800px;
    margin: 4rem auto 0;
    animation: fadeInUp 0.6s ease-out 0.5s both;
}

.demo-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.demo-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.demo-dots {
    display: flex;
    gap: 0.5rem;
}

.demo-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-text-muted);
}

.demo-dots span:nth-child(1) { background: #FF5F56; }
.demo-dots span:nth-child(2) { background: #FFBD2E; }
.demo-dots span:nth-child(3) { background: #27C93F; }

.demo-title {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

.demo-terminal {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
    background: var(--color-bg-light);
}

.terminal-line {
    margin-bottom: 0.5rem;
}

.prompt {
    color: var(--color-primary);
    margin-right: 0.5rem;
}

.dim {
    color: var(--color-text-muted);
}

.terminal-prompt {
    margin: 1rem 0;
}

.prompt-text {
    color: var(--color-warning);
    margin-bottom: 0.5rem;
}

.prompt-option {
    color: var(--color-text-dim);
    margin: 0.25rem 0;
}

.prompt-option.selected {
    color: var(--color-primary);
    font-weight: 600;
    animation: highlight 1s ease-in-out 1.5s both;
}

@keyframes highlight {
    0%, 100% { background: transparent; }
    50% { background: rgba(0, 240, 255, 0.1); }
}

.check-mark {
    color: var(--color-success);
    margin-left: 0.5rem;
    animation: checkAppear 0.3s ease-out 2s both;
}

@keyframes checkAppear {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success {
    color: var(--color-success);
    animation: fadeIn 0.5s ease-out 2.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.success-icon {
    margin-right: 0.5rem;
}

.terminal-cursor {
    display: inline-block;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ========================================
   Sections
   ======================================== */

.section-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--space-3xl) 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1.25rem;
    color: var(--color-text-dim);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Problem Section
   ======================================== */

.problem {
    background: linear-gradient(180deg, transparent 0%, rgba(255, 51, 102, 0.03) 100%);
}

.problem-visual {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.problem-card {
    padding: 2rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 51, 102, 0.2);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
}

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

.problem-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.problem-label {
    color: var(--color-text-dim);
}

.quote {
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.02);
    border-left: 4px solid var(--color-accent);
    border-radius: 12px;
    position: relative;
}

.quote-mark {
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--color-accent);
    opacity: 0.3;
}

.quote p {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.quote-author {
    color: var(--color-text-dim);
    font-size: 0.95rem;
}

/* ========================================
   Features Grid
   ======================================== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    transition: var(--transition);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--color-text-dim);
    line-height: 1.6;
}

/* ========================================
   How It Works
   ======================================== */

.how-it-works {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 240, 255, 0.03) 100%);
}

.workflow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.workflow-step {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    padding: 2rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    transition: var(--transition);
}

.workflow-step:hover {
    border-color: var(--color-primary);
    transform: scale(1.02);
}

.workflow-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.workflow-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.workflow-content p {
    color: var(--color-text-dim);
}

.workflow-arrow {
    font-size: 2rem;
    color: var(--color-primary);
}

.tech-stack {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
}

.tech-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.tech-tags {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.tech-tag {
    padding: 0.5rem 1rem;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 8px;
    font-size: 0.875rem;
    font-family: var(--font-mono);
    color: var(--color-primary);
}

/* ========================================
   Platforms
   ======================================== */

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.platform-card {
    padding: 2rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
}

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

.platform-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--color-primary);
}

.platform-icon svg {
    width: 100%;
    height: 100%;
}

.platform-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.platform-card p {
    color: var(--color-text-dim);
    margin-bottom: 1.5rem;
}

.platform-card ul {
    list-style: none;
    margin-bottom: 2rem;
}

.platform-card li {
    color: var(--color-text-dim);
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

.platform-download {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: 8px;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.platform-download:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ========================================
   FAQ
   ======================================== */

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.faq-item summary {
    padding: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-text-dim);
    line-height: 1.7;
}

.faq-item a {
    color: var(--color-primary);
    text-decoration: none;
}

.faq-item a:hover {
    text-decoration: underline;
}

/* ========================================
   Final CTA
   ======================================== */

.final-cta {
    padding: var(--space-3xl) 2rem;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.05) 0%, rgba(255, 51, 102, 0.05) 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cta-container {
    max-width: 900px;
    margin: 0 auto;
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--color-text-dim);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    padding: var(--space-2xl) 2rem;
    background: var(--color-bg-light);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    color: var(--color-text-dim);
    text-decoration: none;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-desc {
    color: var(--color-text-dim);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin: 0.5rem 0;
}

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

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

/* ========================================
   Responsive Design
   ======================================== */

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

    .nav-links {
        gap: 1rem;
    }

    .hero {
        padding: 8rem 1rem 3rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .download-group {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .workflow {
        flex-direction: column;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .section-container {
        padding: var(--space-2xl) 1rem;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .demo-terminal {
        font-size: 0.8rem;
        padding: 1rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}