/* ==========================================
   L2 API Bridge - World-Class Design System
   Minimalismo sofisticado, dark mode, glassmorphism
   Zero frameworks - Pure CSS
   ========================================== */

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

/* ===========================================
   Design Tokens (CSS Custom Properties)
   =========================================== */
:root {
    /*
     * Color System - Dark Mode Profundo
     * Inspiração: Linear, Vercel, Apple
     */

    /* Background Layers */
    --bg-primary: #050507;
    --bg-secondary: #0a0a0f;
    --bg-tertiary: #101018;
    --bg-elevated: #16161f;
    --bg-surface: #1a1a24;

    /* Glass Effect Colors */
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-border-hover: rgba(255, 255, 255, 0.12);

    /* Text Hierarchy */
    --text-primary: #ffffff;
    --text-secondary: #e2e8f0;
    --text-tertiary: #94a3b8;
    --text-muted: #64748b;
    --text-subtle: #475569;

    /* Accent Colors - Electric Blue */
    --accent-primary: #6366f1;
    --accent-secondary: #818cf8;
    --accent-tertiary: #a5b4fc;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --accent-subtle: rgba(99, 102, 241, 0.1);

    /* Semantic Colors */
    --success: #22c55e;
    --success-subtle: rgba(34, 197, 94, 0.15);
    --warning: #f59e0b;
    --error: #ef4444;

    /* Gradient Definitions */
    --gradient-accent: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    --gradient-text: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    --gradient-surface: linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    --gradient-glow: radial-gradient(ellipse 50% 50% at 50% 50%, var(--accent-glow) 0%, transparent 70%);

    /* Typography Scale - Fluid with clamp() */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

    --text-xs: clamp(0.6875rem, 0.65rem + 0.1vw, 0.75rem);      /* 11-12px */
    --text-sm: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);    /* 13-14px */
    --text-base: clamp(0.9375rem, 0.9rem + 0.18vw, 1rem);       /* 15-16px */
    --text-lg: clamp(1.0625rem, 1rem + 0.25vw, 1.125rem);       /* 17-18px */
    --text-xl: clamp(1.1875rem, 1.1rem + 0.4vw, 1.375rem);      /* 19-22px */
    --text-2xl: clamp(1.5rem, 1.3rem + 0.9vw, 1.875rem);        /* 24-30px */
    --text-3xl: clamp(1.875rem, 1.5rem + 1.6vw, 2.5rem);        /* 30-40px */
    --text-4xl: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);          /* 36-52px */
    --text-5xl: clamp(2.75rem, 2rem + 3.2vw, 4.5rem);           /* 44-72px */

    /* Spacing Scale - 4px base */
    --space-0: 0;
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */

    /* Layout */
    --max-width: 1200px;
    --nav-height: 72px;
    --content-padding: clamp(1rem, 4vw, 2rem);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* Shadows - Layered for depth */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.2), 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.25), 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.3), 0 8px 16px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --shadow-glow-sm: 0 0 20px rgba(99, 102, 241, 0.25);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
    --duration-slower: 600ms;
}

/* ===========================================
   Base Styles
   =========================================== */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--bg-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Custom Selection */
::selection {
    background: var(--accent-primary);
    color: var(--text-primary);
}

/* Focus Styles for Accessibility */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--content-padding);
}

/* Section Base */
.section {
    position: relative;
    padding: var(--space-24) 0;
}

/* ===========================================
   Header & Navigation
   Floating glass navbar with blur effect
   =========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    transition: background var(--duration-normal) var(--ease-out),
                backdrop-filter var(--duration-normal) var(--ease-out);
}

/* Glass effect on scroll - applied via JS or always visible */
.header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(5, 5, 7, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.header.scrolled::before {
    opacity: 1;
}

.nav {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--content-padding);
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-primary);
    z-index: 1;
}

.logo-mark {
    width: 36px;
    height: 36px;
    color: var(--text-primary);
    transition: all var(--duration-normal) var(--ease-out);
}

.nav-logo:hover .logo-mark {
    color: var(--accent-secondary);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.logo-wordmark {
    font-size: var(--text-base);
    font-weight: 600;
    letter-spacing: -0.02em;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Center Navigation Links */
.nav-center {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    z-index: 1;
}

.nav-link {
    position: relative;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 450;
    color: var(--text-tertiary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    transform: translateX(-50%);
    transition: width var(--duration-normal) var(--ease-out);
}

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

.nav-link:hover::after {
    width: 24px;
}

/* Right Side Actions */
.nav-end {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: 1;
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-icon:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
    border-color: var(--glass-border);
}

/* CTA Button */
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--bg-primary);
    background: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-out);
}

.nav-cta:hover {
    background: var(--accent-secondary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-sm);
}

.nav-cta svg {
    transition: transform var(--duration-fast) var(--ease-out);
}

.nav-cta:hover svg {
    transform: translateX(3px);
}

/* Mobile Toggle */
.nav-mobile-toggle {
    display: none;
    position: relative;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    z-index: 1;
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-mobile-toggle:hover {
    background: var(--glass-bg);
    border-color: var(--glass-border-hover);
}

.nav-mobile-toggle span,
.nav-mobile-toggle::before,
.nav-mobile-toggle::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-out);
}

.nav-mobile-toggle::before { top: 13px; }
.nav-mobile-toggle span { top: 50%; transform: translate(-50%, -50%); }
.nav-mobile-toggle::after { bottom: 13px; }

/* ===========================================
   Hero Section
   Cinematic, immersive, with ambient glow
   =========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--nav-height) + var(--space-12)) var(--content-padding) var(--space-16);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

/* Hero Content */
.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Eyebrow Badge */
.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.eyebrow-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--success);
    background: var(--success-subtle);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: var(--radius-full);
}

.eyebrow-text {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-weight: 450;
}

/* Titles */
.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin: 0;
}

.hero-subtitle {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

/* Description */
.hero-description {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text-tertiary);
    max-width: 480px;
}

/* Action Buttons */
.hero-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding-top: var(--space-2);
}

/* Primary Button */
.btn-primary {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-primary);
    background: var(--gradient-accent);
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--duration-fast);
}

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

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-primary svg {
    transition: transform var(--duration-fast) var(--ease-out);
}

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

/* Ghost Button */
.btn-ghost {
    position: relative;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-tertiary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    transition: all var(--duration-fast) var(--ease-out);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--glass-border-hover);
    background: rgba(255, 255, 255, 0.05);
}

/* Proof Points */
.hero-proof {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding-top: var(--space-8);
    border-top: 1px solid var(--glass-border);
    margin-top: var(--space-4);
}

.proof-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.proof-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.proof-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.proof-divider {
    width: 1px;
    height: 32px;
    background: var(--glass-border);
}

/* Hero Visual - Code Window */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.code-window {
    position: relative;
    width: 100%;
    max-width: 520px;
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

/* Glow effect behind code window */
.code-window::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    transform: translate(-50%, -50%);
    background: var(--gradient-glow);
    filter: blur(60px);
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}

.code-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--glass-border);
}

.code-dots {
    display: flex;
    gap: 6px;
}

.code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.code-dots span:first-child { background: #ff5f57; border-color: #e0443e; }
.code-dots span:nth-child(2) { background: #febc2e; border-color: #dea123; }
.code-dots span:last-child { background: #28c840; border-color: #1dad2d; }

.code-filename {
    font-size: var(--text-xs);
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.code-body {
    padding: var(--space-5);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.8;
    color: var(--text-tertiary);
    overflow-x: auto;
}

.code-body code {
    font-family: inherit;
}

/* Syntax Highlighting */
.code-comment { color: var(--text-subtle); font-style: italic; }
.code-keyword { color: #c4b5fd; }
.code-flag { color: #93c5fd; }
.code-string { color: #86efac; }
.code-key { color: #fca5a5; }
.code-number { color: #fcd34d; }

/* Floating Security Card */
.hero-float-card {
    position: absolute;
    bottom: -16px;
    left: -20px;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(12px);
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-float-card svg {
    color: var(--success);
    flex-shrink: 0;
}

.hero-float-card div {
    display: flex;
    flex-direction: column;
}

.hero-float-card strong {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.hero-float-card span {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Hero Background Gradient */
.hero-bg-gradient {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: -1;
}

.hero-bg-gradient::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 80%;
    background: radial-gradient(
        ellipse 60% 60% at 70% 30%,
        rgba(99, 102, 241, 0.12) 0%,
        transparent 60%
    );
    filter: blur(40px);
}

.hero-bg-gradient::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 40%;
    height: 50%;
    background: radial-gradient(
        ellipse 50% 50% at 30% 70%,
        rgba(129, 140, 248, 0.08) 0%,
        transparent 60%
    );
    filter: blur(40px);
}

/* ===========================================
   Section Headers
   =========================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    max-width: 560px;
    margin: 0 auto;
}

/* ===========================================
   Features Section - Bento Grid
   =========================================== */
.features {
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(180px, auto);
    gap: var(--space-4);
}

/* Bento Grid - Layout Assimétrico */
.features-grid .feature-card:nth-child(1) {
    grid-column: span 7;
}

.features-grid .feature-card:nth-child(2) {
    grid-column: span 5;
}

.features-grid .feature-card:nth-child(3) {
    grid-column: span 4;
}

.features-grid .feature-card:nth-child(4) {
    grid-column: span 4;
}

.features-grid .feature-card:nth-child(5) {
    grid-column: span 4;
}

.features-grid .feature-card:nth-child(6) {
    grid-column: span 12;
}

/* Feature Card - Glassmorphism */
.feature-card {
    position: relative;
    padding: var(--space-8);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);
    overflow: hidden;
}

/* Gradient border on hover */
.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-primary), transparent, var(--accent-secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

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

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

/* Feature Icon */
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: var(--accent-subtle);
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
    color: var(--accent-secondary);
    transition: all var(--duration-normal) var(--ease-out);
}

.feature-card:hover .feature-icon {
    background: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-sm);
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.feature-description {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    line-height: 1.7;
}

.feature-description code {
    padding: 2px 8px;
    font-size: var(--text-sm);
    font-family: var(--font-mono);
    color: var(--accent-tertiary);
    background: var(--accent-subtle);
    border-radius: var(--radius-sm);
}

/* ===========================================
   Architecture Section
   =========================================== */
.architecture {
    background: var(--bg-primary);
}

.architecture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* Architecture Layers */
.arch-layer {
    position: relative;
    padding: var(--space-6);
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    transition: all var(--duration-normal) var(--ease-out);
}

.arch-layer:hover {
    transform: scale(1.02);
    border-color: var(--glass-border-hover);
}

.arch-layer.core {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-elevated) 100%);
}

.arch-layer.adapter {
    border-color: var(--success);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, var(--bg-elevated) 100%);
}

.arch-layer-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.arch-layer-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.arch-layer-items span {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.arch-arrow {
    text-align: center;
    font-size: var(--text-2xl);
    color: var(--accent-primary);
    padding: var(--space-2) 0;
}

/* Architecture Benefits */
.architecture-benefits h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-6);
}

.benefits-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.benefits-list li {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.benefits-list svg {
    flex-shrink: 0;
    color: var(--success);
    margin-top: 2px;
}

.benefits-list span {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    line-height: 1.6;
}

.benefits-list strong {
    color: var(--text-primary);
}

/* ===========================================
   Security Section - Dark Elegant
   =========================================== */
.security {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    border-top: 1px solid var(--glass-border);
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.security-item {
    position: relative;
    padding: var(--space-6);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.security-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
}

.security-number {
    font-size: var(--text-5xl);
    font-weight: 800;
    background: linear-gradient(180deg, var(--text-subtle) 0%, transparent 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-4);
}

.security-item h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--accent-secondary);
    margin-bottom: var(--space-3);
}

.security-item p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===========================================
   CTA Section - Gradient Background
   =========================================== */
.cta {
    position: relative;
    background: var(--bg-secondary);
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150%;
    height: 150%;
    background: radial-gradient(
        ellipse 40% 40% at 50% 50%,
        var(--accent-glow) 0%,
        transparent 60%
    );
    opacity: 0.3;
    pointer-events: none;
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    padding: var(--space-12) 0;
}

.cta-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-4);
}

.cta-description {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    margin-bottom: var(--space-10);
}

.cta-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* CTA Buttons Variants */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-large {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}

.cta .btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.cta .btn-primary:hover {
    background: var(--accent-secondary);
    color: var(--text-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    background: var(--accent-subtle);
}

/* ===========================================
   Footer
   =========================================== */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-20) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2.5fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo .logo-icon {
    font-size: var(--text-2xl);
}

.footer-logo .logo-text {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.footer-column h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-column a {
    font-size: var(--text-sm);
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

.footer-column a:hover {
    color: var(--accent-secondary);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: var(--text-subtle);
}

/* ===========================================
   Responsive Design - Mobile First Approach
   =========================================== */

/* Large Tablets & Small Desktops */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .features-grid .feature-card:nth-child(1) {
        grid-column: span 6;
    }

    .features-grid .feature-card:nth-child(2) {
        grid-column: span 6;
    }

    .features-grid .feature-card:nth-child(3) {
        grid-column: span 3;
    }

    .features-grid .feature-card:nth-child(4) {
        grid-column: span 3;
    }

    .features-grid .feature-card:nth-child(5) {
        grid-column: span 3;
    }

    .features-grid .feature-card:nth-child(6) {
        grid-column: span 3;
    }

    .security-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablets */
@media (max-width: 968px) {
    /* Navigation */
    .nav-center,
    .nav-end {
        display: none;
    }

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

    /* Hero */
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }

    .hero-content {
        align-items: center;
    }

    .hero-eyebrow {
        justify-content: center;
    }

    .hero-description {
        max-width: 560px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-proof {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .hero-float-card {
        left: 50%;
        transform: translateX(-50%);
        bottom: -20px;
    }

    @keyframes float {
        0%, 100% { transform: translateX(-50%) translateY(0); }
        50% { transform: translateX(-50%) translateY(-8px); }
    }

    /* Architecture */
    .architecture-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .footer-brand {
        max-width: none;
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
        text-align: center;
    }
}

/* Mobile */
@media (max-width: 640px) {
    /* Hero */
    .hero {
        padding-top: calc(var(--nav-height) + var(--space-8));
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: var(--space-3);
    }

    .btn-primary,
    .btn-ghost {
        width: 100%;
    }

    .hero-proof {
        flex-wrap: wrap;
        gap: var(--space-6);
    }

    .proof-divider {
        display: none;
    }

    .code-window {
        max-width: 100%;
    }

    .code-body {
        font-size: var(--text-xs);
        padding: var(--space-4);
    }

    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }

    .features-grid .feature-card:nth-child(1),
    .features-grid .feature-card:nth-child(2),
    .features-grid .feature-card:nth-child(3),
    .features-grid .feature-card:nth-child(4),
    .features-grid .feature-card:nth-child(5),
    .features-grid .feature-card:nth-child(6) {
        grid-column: span 1;
    }

    .feature-card {
        padding: var(--space-6);
    }

    /* Security */
    .security-grid {
        grid-template-columns: 1fr;
    }

    /* CTA */
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cta-buttons .btn {
        width: 100%;
    }

    /* Footer */
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

/* ===========================================
   Animations
   =========================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Animation Utilities */
.animate-fade-in {
    animation: fadeIn var(--duration-slow) var(--ease-out) forwards;
}

.animate-slide-up {
    animation: slideUp var(--duration-slow) var(--ease-out) forwards;
}

.animate-slide-down {
    animation: slideDown var(--duration-slow) var(--ease-out) forwards;
}

.animate-scale-in {
    animation: scaleIn var(--duration-slow) var(--ease-out) forwards;
}

/* Staggered Animation Delays */
.delay-1 { animation-delay: 100ms; }
.delay-2 { animation-delay: 200ms; }
.delay-3 { animation-delay: 300ms; }
.delay-4 { animation-delay: 400ms; }
.delay-5 { animation-delay: 500ms; }

/* ===========================================
   Scrollbar Styling
   =========================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bg-surface);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--bg-elevated) var(--bg-primary);
}