/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-color);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== LIGHT THEME VARIABLES ===== */
:root {
    /* Primary Colors - Professional Palette */
    --primary: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #6366F1;
    --primary-50: #EEF2FF;
    --primary-gradient: linear-gradient(135deg, #4F46E5 0%, #3730A3 100%);
    
    /* Secondary Colors */
    --secondary: #7C3AED;
    --secondary-light: #8B5CF6;
    
    /* Status Colors */
    --success: #10B981;
    --success-light: #34D399;
    --warning: #F59E0B;
    --warning-light: #FBBF24;
    --danger: #EF4444;
    --danger-light: #F87171;
    --inspiration: #F59E0B;
    --inspiration-light: #FBBF24;
    
    /* Neutral Colors - Enterprise Gray Scale */
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --gray-850: #15203b;
    
    /* Light Theme */
    --bg-color: var(--gray-50);
    --card-bg: #FFFFFF;
    --card-bg-alt: var(--gray-50);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-500);
    --border-color: var(--gray-200);
    --border-light: var(--gray-100);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --header-gradient: linear-gradient(135deg, #4F46E5 0%, #3730A3 100%);
    --accent-gradient: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.2);
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Consolas', 'Menlo', monospace;
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    
    /* Spacing */
    --spacing-xs: 0.25rem;  /* 4px */
    --spacing-sm: 0.5rem;   /* 8px */
    --spacing-md: 0.75rem;  /* 12px */
    --spacing-lg: 1rem;     /* 16px */
    --spacing-xl: 1.5rem;   /* 24px */
    --spacing-2xl: 2rem;    /* 32px */
    
    /* Border Radius */
    --radius-sm: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 20;
    --z-modal: 30;
    --z-popover: 2000;
    --z-tooltip: 50;
}

/* ===== DARK THEME ===== */
body.dark-theme {
    --bg-color: var(--gray-900);
    --card-bg: var(--gray-800);
    --card-bg-alt: var(--gray-850);
    --text-primary: var(--gray-50);
    --text-secondary: var(--gray-300);
    --text-tertiary: var(--gray-400);
    --border-color: var(--gray-700);
    --border-light: var(--gray-800);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    --header-gradient: linear-gradient(135deg, #3730A3 0%, #312E81 100%);
    --glass-bg: rgba(30, 41, 59, 0.9);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ===== ENTERPRISE HEADER ===== */
.app-header {
    background: var(--header-gradient);
    color: white;
    padding: var(--spacing-lg) 0;
    position: relative;
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.app-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.header-content {
    position: relative;
    z-index: 1;
}

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

/* ===== LOGO ===== */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: white;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: transform var(--transition-base);
}

.logo:hover .logo-icon {
    transform: scale(1.05);
}

.logo-text h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #ffffff, #E0E7FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: 400;
    max-width: 400px;
}

/* ===== HEADER ACTIONS ===== */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    z-index: var(--z-popover);
}

/* ===== PROGRESS INDICATOR ===== */
.progress-indicator {
    height: 3px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #ffffff, #E0E7FF);
    border-radius: var(--radius-full);
    width: 33%;
    transition: width var(--transition-base);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}

/* ===== MAIN LAYOUT ===== */
.app-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto var(--spacing-2xl);
    position: relative;
    min-height: 500px;
}

/* ===== ELEGANT CARDS ===== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    height: auto;
    min-height: 300px;
}

#outputCard {
    min-height: 350px;
    max-height: none;
    display: flex;
    flex-direction: column;
    overflow: visible;
}

#aiCard {
    min-height: 350px;
    display: flex;
    flex-direction: column;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

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

/* ===== STEP HEADER ===== */
.step-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow);
    flex-shrink: 0;
}

.step-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
    letter-spacing: -0.01em;
}

.step-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    font-weight: 400;
}

/* ===== INPUT AREA ===== */
.input-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.textarea-container {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
    margin-bottom: var(--spacing-lg);
}

.textarea-container:focus-within {
    box-shadow: 0 0 0 3px var(--primary-50), var(--shadow);
}

.dark-theme .textarea-container:focus-within {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2), var(--shadow);
}

/* Character Counter */
.char-counter {
    position: absolute;
    top: -30px;
    right: 0;
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    background: var(--card-bg);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    z-index: 1;
}

.textarea {
    width: 100%;
    padding: var(--spacing-xl) var(--spacing-xl) calc(var(--spacing-xl) + 40px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    resize: vertical;
    min-height: 180px;
    transition: all var(--transition-base);
    outline: none;
}

.textarea.auto-generating {
    position: relative;
    overflow: hidden;
}

.textarea.auto-generating::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(79, 70, 229, 0.1), transparent);
    animation: shimmer 1.5s infinite;
}

.textarea::placeholder {
    color: var(--text-tertiary);
    opacity: 0.7;
    font-weight: 400;
}

.textarea:focus {
    border-color: var(--primary);
    box-shadow: inset 0 0 0 1px var(--primary);
}

/* Text Area Controls */
.textarea-controls {
    position: absolute;
    bottom: 10px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    pointer-events: none;
    z-index: 2;
}

.textarea-controls button {
    pointer-events: auto;
}

.left-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.right-controls {
    display: flex;
    gap: var(--spacing-xs);
}

/* Text Area Top-Right Controls */
.textarea-top-right-controls {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: var(--spacing-xs);
    z-index: 3;
}

/* ===== ACTION BUTTONS ===== */
.action-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    position: relative;
}

.action-btn:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-1px);
}

.action-btn.active {
    background: var(--primary);
    color: white;
}

.action-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.action-btn-tooltip {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-800);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-tooltip);
}

.dark-theme .action-btn-tooltip {
    background: var(--gray-700);
}

.action-btn:hover .action-btn-tooltip {
    opacity: 1;
    visibility: visible;
}

/* ===== UNDO BUTTON ===== */
.undo-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    position: relative;
}

.undo-btn:hover {
    background: var(--warning);
    color: white;
    transform: translateY(-1px);
}

.undo-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===== OUTPUT SECTION ===== */
.output-section {
    display: none;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    width: 100%;
    margin-top: var(--spacing-xl);
}

.output-section.visible {
    display: grid;
    animation: fadeIn 0.5s ease;
}

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

/* ===== OUTPUT AREA ===== */
.output-container {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: visible;
}

.output-area {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    font-family: var(--font-mono);
    font-size: var(--font-size-base);
    line-height: 1.8;
    white-space: pre-wrap;
    flex: 1;
    min-height: 250px;
    color: var(--text-primary);
    transition: all var(--transition-base);
    outline: none;
    position: relative;
    resize: vertical;
    overflow-y: auto;
    max-height: none;
}

.output-area:empty::before {
    content: 'Your optimized prompt will appear here. Describe your task in Step 1 and click "Prepare Prompt" to generate.';
    color: var(--text-tertiary);
    font-style: italic;
    font-family: var(--font-sans);
    font-weight: 400;
}

.output-area:focus {
    border-color: var(--primary);
    box-shadow: inset 0 0 0 1px var(--primary);
}

/* Output Action Buttons */
.output-actions {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-xs);
    z-index: 2;
}

/* Save Button */
.save-btn {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: none;
    align-items: center;
    gap: var(--spacing-xs);
    z-index: 2;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.save-btn.visible {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.save-btn:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

/* ===== NEED INSPIRATION BUTTON ===== */
.need-inspiration-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--inspiration);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    margin-top: var(--spacing-md);
    box-shadow: 0 4px 6px -1px rgba(245, 158, 11, 0.3);
    letter-spacing: 0.01em;
    width: auto;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.need-inspiration-btn:hover {
    background: var(--inspiration-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(245, 158, 11, 0.4);
}

.need-inspiration-btn i {
    font-size: var(--font-size-base);
    transition: transform var(--transition-base);
}

.need-inspiration-btn:hover i {
    transform: rotate(15deg);
}

/* ===== INSPIRATION PANEL ===== */
.inspiration-container {
    position: relative;
    width: 100%;
    margin-top: var(--spacing-md);
    transition: all var(--transition-base);
}

.inspiration-panel {
    display: none;
    width: 100%;
    background: var(--card-bg);
    border: 2px solid var(--inspiration);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    animation: slideDown 0.3s ease;
    overflow: hidden;
    position: relative;
    z-index: 2;
}

.inspiration-panel.expanded {
    display: block;
}

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

.inspiration-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.close-inspiration-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.close-inspiration-btn:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.dark-theme .close-inspiration-btn:hover {
    background: var(--gray-700);
}

/* Inspiration Grid */
.inspiration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.inspiration-item {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    background: var(--card-bg-alt);
    text-align: center;
    min-height: 100px;
    justify-content: center;
}

.inspiration-item:hover {
    background: var(--primary-50);
    color: var(--primary);
    transform: translateY(-2px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.dark-theme .inspiration-item:hover {
    background: rgba(79, 70, 229, 0.2);
    border-color: var(--primary);
}

.inspiration-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--inspiration);
    color: white;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: transform var(--transition-fast);
}

.inspiration-item:hover .inspiration-icon {
    transform: scale(1.1);
}

.inspiration-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
}

/* ===== SUGGESTIONS PANEL ===== */
.suggestions-panel {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--primary-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-light);
    display: none;
}

.suggestions-panel.visible {
    display: block;
    animation: slideDown 0.3s ease;
}

.suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.suggestion-item:hover {
    background: rgba(255, 255, 255, 0.5);
}

.dark-theme .suggestions-panel {
    background: rgba(79, 70, 229, 0.1);
    border-color: var(--primary);
}

.dark-theme .suggestion-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===== AI PLATFORMS SIDEBAR ===== */
.platforms-sidebar {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.platforms-header {
    margin-bottom: var(--spacing-lg);
}

.platforms-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
    overflow-y: auto;
    padding-right: var(--spacing-sm);
}

.platforms-grid::-webkit-scrollbar {
    width: 6px;
}

.platforms-grid::-webkit-scrollbar-track {
    background: transparent;
    border-radius: var(--radius-full);
}

.platforms-grid::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: var(--radius-full);
}

/* Platform Cards */
.platform-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    text-decoration: none;
    color: inherit;
}

.platform-card:hover {
    border-color: var(--primary);
    transform: translateX(2px);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
}

.platform-card.recommended {
    border-color: var(--success);
    background: linear-gradient(135deg, var(--card-bg), rgba(16, 185, 129, 0.05));
}

.platform-card.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--card-bg), rgba(79, 70, 229, 0.1));
    box-shadow: var(--shadow-lg);
}

/* Brand Logo Container */
.platform-logo-container {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
    overflow: hidden;
    background: white;
    padding: 8px;
}

.platform-logo-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

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

.platform-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    letter-spacing: -0.01em;
}

.platform-desc {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
    font-weight: 400;
}

.platform-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.platform-tag {
    background: var(--primary-50);
    color: var(--primary);
    font-size: var(--font-size-xs);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    letter-spacing: -0.01em;
}

.dark-theme .platform-tag {
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
}

.recommended-badge {
    background: var(--success);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    letter-spacing: -0.01em;
}

/* ===== STICKY CTA CONTAINER ===== */
.sticky-cta-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    left: var(--spacing-xl);
    z-index: var(--z-sticky);
    pointer-events: none;
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* Prepare Prompt Button */
.sticky-cta.prepare {
    pointer-events: auto;
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-xl);
    transform: translateY(0);
    opacity: 1;
    min-width: 180px;
    justify-content: center;
    letter-spacing: 0.01em;
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeInUp 0.3s ease;
}

.sticky-cta.prepare.removed {
    display: none !important;
    pointer-events: none;
    opacity: 0;
    transform: translateY(20px);
}

.sticky-cta.prepare:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), 0 15px 30px rgba(79, 70, 229, 0.4);
}

.sticky-cta.prepare:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Reset Button */
.sticky-cta.reset {
    pointer-events: auto;
    background: linear-gradient(135deg, var(--danger) 0%, #DC2626 100%);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-xl);
    transform: translateY(0);
    opacity: 1;
    min-width: 140px;
    justify-content: center;
    letter-spacing: 0.01em;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: calc(var(--z-sticky) + 1);
    animation: fadeInUp 0.3s ease;
}

.sticky-cta.reset:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), 0 10px 25px rgba(239, 68, 68, 0.4);
    background: linear-gradient(135deg, var(--danger-light) 0%, var(--danger) 100%);
}

.sticky-cta.reset.hidden {
    transform: translateY(100px);
    opacity: 0;
    pointer-events: none;
    display: none;
}

.sticky-cta.reset.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

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

.cta-icon {
    font-size: var(--font-size-lg);
}

/* ===== MODALS ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-xl);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn var(--transition-base);
    border: 1px solid var(--border-color);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: white;
    letter-spacing: -0.01em;
}

.modal-body {
    padding: 0;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body::-webkit-scrollbar {
    width: 8px;
}

.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: var(--radius-full);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    background: var(--card-bg);
}

/* ===== SETTINGS FORM ===== */
.settings-group {
    margin: 0;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    background: var(--card-bg);
}

.settings-group:last-child {
    border-bottom: none;
}

.settings-group-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary);
    letter-spacing: -0.01em;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    color: var(--primary);
}

.settings-group-title i {
    color: var(--primary);
}

.setting-item {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--border-color);
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-label {
    display: block;
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

select, .language-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%2394A3B8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    font-weight: 400;
    min-height: 40px;
}

select:focus, .language-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.dark-theme select:focus, .dark-theme .language-select:focus {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.helper-text {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
    font-weight: 400;
    font-style: italic;
}

/* Settings Action Buttons */
.settings-actions {
    display: flex;
    gap: var(--spacing-md);
    width: 100%;
    align-items: center;
}

.settings-save-btn {
    flex: 1;
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    min-height: 44px;
    letter-spacing: -0.01em;
}

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

.settings-cancel-btn {
    flex: 1;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    min-height: 44px;
    letter-spacing: -0.01em;
}

.settings-cancel-btn:hover {
    background: var(--gray-100);
}

.dark-theme .settings-cancel-btn:hover {
    background: var(--gray-700);
}

/* ===== NOTIFICATION SYSTEM ===== */
.notification-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.notification {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.2s ease;
    max-width: 320px;
    transform: translateX(0);
}

.notification.success {
    border-left-color: var(--success);
}

.notification.error {
    border-left-color: var(--danger);
}

.notification.info {
    border-left-color: var(--primary);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

.notification-icon {
    font-size: var(--font-size-base);
    flex-shrink: 0;
}

.notification.success .notification-icon {
    color: var(--success);
}

.notification.error .notification-icon {
    color: var(--danger);
}

.notification.info .notification-icon {
    color: var(--primary);
}

.notification-message {
    font-size: var(--font-size-sm);
    font-weight: 500;
    flex: 1;
    letter-spacing: -0.01em;
}

/* ===== FULL SCREEN EDITOR ===== */
.full-screen-editor {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-color);
    z-index: var(--z-modal);
    display: none;
    flex-direction: column;
}

.full-screen-editor.active {
    display: flex;
}

.editor-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    box-shadow: var(--shadow);
}

.editor-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

/* Prepare Prompt button in fullscreen editor */
.editor-prepare-btn {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    letter-spacing: 0.01em;
}

.editor-prepare-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
}

.editor-prepare-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.editor-content {
    flex: 1;
    padding: var(--spacing-xl);
    position: relative;
}

.editor-textarea {
    width: 100%;
    height: 100%;
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.8;
    resize: none;
    outline: none;
    transition: all var(--transition-base);
    font-weight: 400;
}

.editor-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

/* Full Screen Editor Controls */
.editor-controls {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    pointer-events: none;
    z-index: 2;
}

.editor-controls button {
    pointer-events: auto;
}

.editor-left-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.editor-right-controls {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===== PROMPT HISTORY ===== */
.history-section {
    margin-top: var(--spacing-xl);
    display: none;
}

.history-section.visible {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.history-close-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: var(--font-size-lg);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.history-close-btn:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.dark-theme .history-close-btn:hover {
    background: var(--gray-700);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 400px;
    overflow-y: auto;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg-alt);
}

.history-list::-webkit-scrollbar {
    width: 6px;
}

.history-list::-webkit-scrollbar-track {
    background: transparent;
    border-radius: var(--radius-full);
}

.history-list::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: var(--radius-full);
}

.history-item {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: var(--card-bg);
}

.history-item:hover {
    background: var(--primary-50);
    border-color: var(--primary-light);
    transform: translateX(2px);
}

.dark-theme .history-item:hover {
    background: rgba(79, 70, 229, 0.1);
    border-color: var(--primary);
}

.history-content {
    flex: 1;
    min-width: 0;
}

.history-text {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-time {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.history-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-left: var(--spacing-md);
}

/* Empty History State */
.history-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-tertiary);
}

.history-empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

/* ===== FOOTER ===== */
.app-footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

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

.footer-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.footer-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.footer-item .status-indicator {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--success);
}

.footer-item .status-indicator.offline {
    background: var(--gray-400);
}

.footer-copyright {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-align: right;
}

/* ===== UTILITY CLASSES ===== */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

.pulse-animation {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.slide-down {
    animation: slideDown var(--transition-base);
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 1.5s infinite;
}

/* Empty States */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-tertiary);
    height: 100%;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .output-section {
        grid-template-columns: 1.5fr 1fr;
        gap: var(--spacing-lg);
    }
    
    .platforms-grid {
        gap: var(--spacing-sm);
    }
    
    .platform-card {
        padding: var(--spacing-md);
    }
    
    .inspiration-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .output-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .platforms-sidebar {
        max-height: 400px;
    }
    
    .sticky-cta-container {
        flex-direction: column;
        align-items: flex-end;
    }
    
    .inspiration-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .footer-info {
        justify-content: center;
    }
    
    .footer-copyright {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .app-container {
        gap: var(--spacing-lg);
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .output-section {
        gap: var(--spacing-lg);
    }
    
    .sticky-cta-container {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        left: var(--spacing-lg);
    }
    
    .sticky-cta.reset {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
    }
    
    .sticky-cta.prepare {
        width: 100%;
    }
    
    .settings-actions {
        flex-direction: column;
    }
    
    .inspiration-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
    }
    
    .inspiration-item {
        padding: var(--spacing-sm);
        min-height: 80px;
    }
    
    .inspiration-icon {
        width: 32px;
        height: 32px;
        font-size: var(--font-size-sm);
    }
    
    .history-item {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .history-actions {
        align-self: flex-end;
        margin-left: 0;
    }
    
    .modal-overlay {
        padding: var(--spacing-md);
    }
    
    .footer-info {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .logo-text h1 {
        font-size: var(--font-size-xl);
    }
    
    .logo-text p {
        font-size: var(--font-size-xs);
    }
    
    .step-title {
        font-size: var(--font-size-base);
    }
    
    .sticky-cta-container {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
    }
    
    .sticky-cta.reset {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .output-section {
        margin-top: var(--spacing-lg);
    }
    
    .inspiration-grid {
        grid-template-columns: 1fr;
    }
    
    .inspiration-item {
        min-height: 70px;
        padding: var(--spacing-sm);
    }
    
    .inspiration-icon {
        width: 28px;
        height: 28px;
        font-size: var(--font-size-xs);
    }
    
    .inspiration-text {
        font-size: var(--font-size-xs);
    }
    
    .modal-content {
        max-height: 85vh;
    }
}