/* =========================================
   AI Prompt Generator - Production Stylesheet
   Version: 1.0.0
   ========================================= */

/* =========================================
   CSS Variables & Design Tokens
   ========================================= */
:root {
    /* Colors - Light Mode */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-light: #e0e7ff;
    --color-secondary: #64748b;
    --color-secondary-hover: #475569;
    
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;
    
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-surface: #ffffff;
    --color-surface-hover: #f8fafc;
    
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-tertiary: #94a3b8;
    --color-text-inverse: #ffffff;
    
    --color-border: #e2e8f0;
    --color-border-focus: #6366f1;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-focus: 0 0 0 3px rgba(99, 102, 241, 0.3);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions - optimized for smoothness */
    --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 180ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 280ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-toast: 400;
    --z-tooltip: 500;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

/* Dark Mode */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-surface: #1e293b;
    --color-surface-hover: #334155;
    
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-tertiary: #64748b;
    
    --color-border: #334155;
    
    --color-primary-light: #312e81;
    --color-success-light: #064e3b;
    --color-warning-light: #78350f;
    --color-error-light: #7f1d1d;
    --color-info-light: #1e3a5f;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

ul, ol {
    list-style: none;
}

/* =========================================
   Accessibility
   ========================================= */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

.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;
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

.main {
    flex: 1;
    padding: var(--spacing-8) 0;
}

/* =========================================
   Header & Navigation
   ========================================= */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
    color: var(--color-text);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
    color: var(--color-primary);
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    transition: background var(--transition-fast);
    font-size: 1.25rem;
}

.theme-toggle:hover {
    background: var(--color-border);
}

.theme-icon-dark {
    display: none;
}

[data-theme="dark"] .theme-icon-light {
    display: none;
}

[data-theme="dark"] .theme-icon-dark {
    display: inline;
}

.language-select {
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.language-select:hover {
    border-color: var(--color-primary);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    text-align: center;
    padding: var(--spacing-12) 0;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-4);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.gradient-text {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-6);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-2);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast);
}

.badge:hover {
    transform: scale(1.05);
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-info {
    background: var(--color-info-light);
    color: var(--color-info);
}

/* =========================================
   Tool Section
   ========================================= */
.tool-section {
    margin-bottom: var(--spacing-16);
}

.tool-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-6);
}

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

.input-section,
.output-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    will-change: transform, box-shadow;
}

.input-section:hover,
.output-section:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.input-header,
.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-3);
}

.input-label,
.output-label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
}

.char-counter {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.char-counter.warning {
    color: var(--color-warning);
}

.char-counter.error {
    color: var(--color-error);
}

.prompt-textarea {
    width: 100%;
    min-height: 180px;
    padding: var(--spacing-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    resize: vertical;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
    will-change: border-color, box-shadow;
}

.prompt-textarea:hover {
    border-color: var(--color-primary);
}

.prompt-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus), 0 0 0 1px var(--color-primary);
    transform: scale(1.005);
}

.prompt-textarea::placeholder {
    color: var(--color-text-tertiary);
}

.input-help {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: var(--spacing-3) 0;
}

/* Recent Prompts */
.history-panel {
    margin: var(--spacing-4) 0 var(--spacing-2);
    padding: var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-secondary);
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
}

.history-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    max-height: 160px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.history-btn {
    width: 100%;
    text-align: left;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.history-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

.history-empty {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
}

/* Advanced Options */
.advanced-options {
    margin: var(--spacing-4) 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.advanced-toggle {
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-bg-secondary);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    user-select: none;
}

.advanced-toggle:hover {
    background: var(--color-bg-tertiary);
}

.advanced-content {
    padding: var(--spacing-4);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-4);
    border-top: 1px solid var(--color-border);
}

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

.option-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.option-group label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.option-select {
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    cursor: pointer;
}

.option-select:hover {
    border-color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border);
}

.btn-generate {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-lg);
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    margin-top: var(--spacing-4);
    position: relative;
    overflow: hidden;
}

.btn-generate::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-generate:hover:not(:disabled)::before {
    left: 100%;
}

.btn-generate:hover:not(:disabled) {
    box-shadow: var(--shadow-lg), 0 0 20px rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

.btn-generate:active:not(:disabled) {
    transform: translateY(0);
}

.btn-icon-only {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    background: var(--color-bg-tertiary);
    transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-icon-only:hover:not(:disabled) {
    background: var(--color-border);
    transform: scale(1.1);
}

.btn-icon-only:active:not(:disabled) {
    transform: scale(0.95);
}

.btn-loading {
    display: none;
    align-items: center;
    gap: var(--spacing-2);
}

.btn-text,
.btn-icon {
    transition: opacity var(--transition-fast);
}

.btn.loading .btn-text,
.btn.loading .btn-icon {
    display: none;
}

.btn.loading .btn-loading {
    display: inline-flex;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Pulse animation for loading button */
.btn.loading {
    animation: pulse-glow 1.5s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: var(--shadow-md);
    }
    50% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    }
}

.terms-notice {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-align: center;
    margin-top: var(--spacing-3);
}

/* Output Section */
.output-actions {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.output-container {
    min-height: 280px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    background: var(--color-bg);
    transition: all var(--transition-base);
}

.output-container:has(.output-content:not([hidden])) {
    border-style: solid;
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    box-shadow: var(--shadow-md);
}

.output-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 248px;
    text-align: center;
    color: var(--color-text-tertiary);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
}

.placeholder-hint {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-2);
}

.output-content {
    white-space: pre-wrap;
    word-break: break-word;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.output-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 248px;
    text-align: center;
    color: var(--color-error);
}

.error-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
}

.toast {
    position: fixed;
    bottom: var(--spacing-6);
    left: 50%;
    transform: translateX(-50%) translateY(100px) scale(0.9);
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--color-text-inverse);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-xl), 0 0 20px rgba(16, 185, 129, 0.4);
    z-index: var(--z-toast);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

/* =========================================
   Features Section
   ========================================= */
.features-section,
.faq-section,
.share-section {
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-10);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
}

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

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-3);
}

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

/* =========================================
   FAQ Section
   ========================================= */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-4) var(--spacing-5);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.faq-question::after {
    content: '+';
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

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

.faq-answer {
    padding: 0 var(--spacing-5) var(--spacing-4);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* =========================================
   Share Section
   ========================================= */
.share-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-3);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-inverse);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: var(--color-text-inverse);
}

.share-twitter {
    background: #000000;
}

.share-facebook {
    background: #1877f2;
}

.share-linkedin {
    background: #0a66c2;
}

.share-reddit {
    background: #ff4500;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-12) 0 var(--spacing-6);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.footer-section h4 {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-4);
}

.footer-section p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.footer-section a {
    color: var(--color-text-secondary);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

/* =========================================
   Cookie Banner
   ========================================= */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-4);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-modal);
}

.cookie-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}

.cookie-content p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-3);
    flex-shrink: 0;
}

/* =========================================
   Responsive Typography
   ========================================= */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-subtitle,
    .section-subtitle {
        font-size: var(--font-size-base);
    }
}

/* =========================================
   Print Styles
   ========================================= */
@media print {
    .header,
    .footer,
    .cookie-banner,
    .share-section,
    .btn-generate,
    .output-actions {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .tool-container {
        grid-template-columns: 1fr;
    }
}

/* =========================================
   Reduced Motion
   ========================================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}