/* ==========================================
   RapidTxt - Styles
   ========================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0a;
    --color-bg-elevated: #111111;
    --color-bg-hover: #1a1a1a;
    --color-bg-active: #222222;
    --color-surface: #151515;
    --color-surface-hover: #1c1c1c;
    --color-border: #2a2a2a;
    --color-border-subtle: #1f1f1f;
    
    --color-text: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-tertiary: #666666;
    --color-text-muted: #444444;
    
    --color-primary: #00ff88;
    --color-primary-hover: #00cc6d;
    --color-primary-subtle: rgba(0, 255, 136, 0.1);
    --color-primary-glow: rgba(0, 255, 136, 0.3);
    
    --color-accent: #00d4ff;
    --color-accent-subtle: rgba(0, 212, 255, 0.1);
    
    --color-danger: #ff4757;
    --color-danger-hover: #ff3344;
    --color-danger-subtle: rgba(255, 71, 87, 0.1);
    
    --color-warning: #ffa502;
    
    /* Typography */
    --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    
    /* Borders */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-primary-glow);
    
    /* Layout */
    --nav-height: 72px;
    --container-max: 1200px;
    --sidebar-width: 280px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-display);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

body.modal-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-subtle);
    z-index: 100;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

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

.nav-logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.nav-mobile-toggle {
    display: none;
    width: 32px;
    height: 32px;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    padding: 4px;
}

.nav-mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: var(--transition-fast);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    flex-direction: column;
    gap: var(--space-md);
    z-index: 99;
}

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

.mobile-menu a {
    padding: var(--space-sm) 0;
    font-weight: 500;
    color: var(--color-text-secondary);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-mobile-toggle {
        display: flex;
    }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

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

.btn-ghost:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
    border-color: var(--color-text-tertiary);
}

.btn-danger {
    background: var(--color-danger-subtle);
    color: var(--color-danger);
    border: 1px solid rgba(255, 71, 87, 0.3);
}

.btn-danger:hover {
    background: var(--color-danger);
    color: white;
}

.btn-nav {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--color-primary-glow) 0%, transparent 60%);
    opacity: 0.4;
    filter: blur(80px);
}

.hero-content {
    position: relative;
    text-align: center;
    padding: var(--space-3xl) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 8px 16px;
    background: var(--color-primary-subtle);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.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-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-subtitle strong {
    color: var(--color-text);
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

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

/* Hero Demo */
.hero-demo {
    margin-top: var(--space-3xl);
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.demo-window {
    max-width: 560px;
    margin: 0 auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.demo-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
}

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

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

.demo-dots span:nth-child(1) { background: #ff5f57; }
.demo-dots span:nth-child(2) { background: #febc2e; }
.demo-dots span:nth-child(3) { background: #28c840; }

.demo-title {
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
}

.demo-content {
    padding: var(--space-md);
    position: relative;
}

.demo-search {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.demo-search svg {
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
}

.demo-search span {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.demo-snippets {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.demo-snippet {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    animation: fadeInUp 0.5s ease backwards;
}

.demo-snippet[data-delay="0"] { animation-delay: 0.6s; }
.demo-snippet[data-delay="1"] { animation-delay: 0.7s; }
.demo-snippet[data-delay="2"] { animation-delay: 0.8s; }

.demo-snippet.active {
    border-color: var(--color-primary);
    background: var(--color-primary-subtle);
}

.snippet-icon {
    font-size: 1.25rem;
}

.snippet-info {
    flex: 1;
    min-width: 0;
}

.snippet-title {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 2px;
}

.snippet-preview {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.snippet-key {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-bg-hover);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
}

.demo-toast {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0;
    animation: toastPop 2s ease 1.5s infinite;
}

.demo-toast svg {
    width: 16px;
    height: 16px;
}

@keyframes toastPop {
    0%, 100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
    15%, 85% { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ==========================================
   Trust Bar
   ========================================== */

.trust-bar {
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
    background: var(--color-bg-elevated);
}

.trust-bar .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.trust-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trust-items {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.trust-items span {
    font-weight: 600;
    color: var(--color-text-secondary);
}

.trust-dot {
    width: 4px;
    height: 4px;
    background: var(--color-text-muted);
    border-radius: 50%;
}

/* ==========================================
   Section Styles
   ========================================== */

section {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-badge {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-primary-subtle);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

/* ==========================================
   Features Section
   ========================================== */

.features {
    background: var(--color-bg);
}

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

@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-text-tertiary);
    transform: translateY(-4px);
}

.feature-card-lg {
    grid-column: span 1;
}

@media (min-width: 900px) {
    .feature-card-lg {
        grid-column: span 1;
        grid-row: span 2;
        display: flex;
        flex-direction: column;
    }
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-subtle);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

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

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.feature-keys {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.feature-keys kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.feature-keys span {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    margin-right: var(--space-md);
}

/* ==========================================
   Comparison Section
   ========================================== */

.comparison {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.comparison-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.comparison-card {
    flex: 1;
    min-width: 280px;
    max-width: 400px;
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.comparison-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.comparison-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.comparison-steps .step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}

.step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-bg-hover);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-tertiary);
}

.comparison-time {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
}

.comparison-rapid .comparison-time {
    color: var(--color-primary);
}

.comparison-rapid {
    border-color: var(--color-primary);
    background: var(--color-primary-subtle);
}

.comparison-rapid .step-num {
    background: var(--color-primary);
    color: var(--color-bg);
}

.comparison-vs {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text-muted);
}

.comparison-tagline {
    text-align: center;
    margin-top: var(--space-2xl);
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.comparison-tagline strong {
    color: var(--color-primary);
}

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

.how-it-works {
    background: var(--color-bg);
}

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

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

.step-card {
    text-align: center;
    padding: var(--space-xl);
}

.step-number {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.step-visual {
    width: 120px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    color: var(--color-text-secondary);
}

.step-visual svg {
    width: 100%;
    height: 100%;
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

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

/* ==========================================
   Use Cases Section
   ========================================== */

.use-cases {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border-subtle);
}

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

@media (max-width: 900px) {
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}

.use-case-card {
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.use-case-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.use-case-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.use-case-card ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.use-case-card li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding-left: var(--space-md);
    position: relative;
}

.use-case-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* ==========================================
   Privacy Section
   ========================================== */

.privacy-section {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border-subtle);
}

.privacy-card {
    display: flex;
    align-items: center;
    gap: var(--space-3xl);
    padding: var(--space-3xl);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-elevated) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

@media (max-width: 768px) {
    .privacy-card {
        flex-direction: column;
        text-align: center;
        gap: var(--space-xl);
        padding: var(--space-xl);
    }
}

.privacy-icon {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    color: var(--color-primary);
}

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

.privacy-content h2 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.privacy-content > p {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.privacy-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.privacy-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--color-text);
}

.privacy-feature svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* ==========================================
   CTA Section
   ========================================== */

.cta-section {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border-subtle);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.cta-content > p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.cta-note {
    margin-top: var(--space-lg);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

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

.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: var(--space-2xl);
    }
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

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

.footer-brand p {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
}

.footer-links {
    display: flex;
    gap: var(--space-3xl);
}

@media (max-width: 500px) {
    .footer-links {
        flex-wrap: wrap;
        gap: var(--space-xl);
    }
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

/* ==========================================
   App Modal
   ========================================== */

.app-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: 200;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.app-modal.active {
    display: block;
    opacity: 1;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
}

.app-header-left,
.app-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    min-width: 200px;
}

.app-header-right {
    justify-content: flex-end;
}

.app-close {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.app-close:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.app-close svg {
    width: 18px;
    height: 18px;
}

.app-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.1rem;
}

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

.app-btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.app-btn-icon:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.app-btn-icon svg {
    width: 18px;
    height: 18px;
}

.app-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.app-sidebar {
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border-right: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .app-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-md);
    }
    
    .app-content {
        flex-direction: column;
    }
    
    .tags-container {
        display: none;
    }
}

.search-container {
    position: relative;
    margin-bottom: var(--space-md);
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-text-tertiary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--space-md);
    padding-left: 44px;
    padding-right: 44px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.search-input::placeholder {
    color: var(--color-text-tertiary);
}

.search-kbd {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    padding: 2px 8px;
    background: var(--color-bg-hover);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
}

.filter-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.filter-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.filter-tab.active {
    background: var(--color-primary-subtle);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-tab svg {
    width: 14px;
    height: 14px;
}

.tags-container {
    flex: 1;
    overflow-y: auto;
    margin-bottom: var(--space-lg);
}

.tags-header {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag-btn {
    padding: 4px 10px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tag-btn:hover {
    border-color: var(--color-text-tertiary);
    color: var(--color-text);
}

.tag-btn.active {
    background: var(--color-accent-subtle);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-add {
    width: 100%;
    margin-top: auto;
}

.app-main {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
}

.snippets-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

/* Snippet Item */
.snippet-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.snippet-item:hover {
    border-color: var(--color-text-tertiary);
    background: var(--color-surface-hover);
}

.snippet-item.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-subtle);
}

.snippet-item-main {
    flex: 1;
    min-width: 0;
}

.snippet-item-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.snippet-item-title {
    font-weight: 600;
    color: var(--color-text);
}

.snippet-item-pin {
    color: var(--color-warning);
}

.snippet-item-pin svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.snippet-item-preview {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: var(--font-mono);
}

.snippet-item-tags {
    display: flex;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.snippet-tag {
    padding: 2px 8px;
    background: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.snippet-item-actions {
    display: flex;
    gap: var(--space-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.snippet-item:hover .snippet-item-actions {
    opacity: 1;
}

.snippet-action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--color-text-tertiary);
    transition: all var(--transition-fast);
}

.snippet-action:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.snippet-action.delete:hover {
    background: var(--color-danger-subtle);
    color: var(--color-danger);
}

.snippet-action svg {
    width: 16px;
    height: 16px;
}

.snippet-item-key {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
}

/* Empty State */
.empty-state {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-3xl);
}

.empty-state.visible {
    display: flex;
}

.empty-icon {
    width: 80px;
    height: 80px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

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

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-lg);
}

.empty-state kbd {
    padding: 2px 6px;
    background: var(--color-bg-hover);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* ==========================================
   Modals
   ========================================== */

.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 300;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-sm {
    max-width: 400px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--color-text-tertiary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.modal-close svg {
    width: 18px;
    height: 18px;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* Form Elements */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.form-group label .optional {
    font-weight: 400;
    color: var(--color-text-tertiary);
}

.form-group input[type="text"],
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
    margin-top: var(--space-sm);
}

.form-group-inline {
    margin-bottom: 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.checkbox-label input {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.checkbox-label input:checked + .checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-label input:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid var(--color-bg);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Settings */
.settings-section {
    margin-bottom: var(--space-xl);
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.settings-section .checkbox-label {
    margin-bottom: var(--space-sm);
}

.settings-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-primary-subtle);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.settings-info svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.settings-buttons {
    display: flex;
    gap: var(--space-sm);
}

.settings-buttons .btn {
    flex: 1;
}

.settings-danger {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

/* Variable form */
.variable-group {
    margin-bottom: var(--space-md);
}

.variable-group:last-child {
    margin-bottom: 0;
}

.variable-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.variable-group input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.95rem;
}

.variable-group input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

/* ==========================================
   Toast
   ========================================== */

.toast {
    position: fixed;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: var(--radius-full);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    z-index: 400;
    opacity: 0;
    transition: all var(--transition-base);
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-icon {
    width: 18px;
    height: 18px;
}

/* ==========================================
   Scrollbar
   ========================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

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

/* ==========================================
   Utilities
   ========================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}