/* iOS-Style AI Text Generator */

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

:root {
    /* iOS Color Palette */
    --primary-color: #007AFF;
    --primary-hover: #0056CC;
    --secondary-color: #8E8E93;
    --accent-color: #34C759;
    --danger-color: #FF3B30;
    --warning-color: #FF9500;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-tertiary: #C7C7CC;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F2F7;
    --bg-tertiary: #FFFFFF;
    --border-color: rgba(209, 209, 214, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.3);
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
    
    /* iOS Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    
    /* iOS Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-spring: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Typography - San Francisco Font Stack */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding: 2rem;
}

/* App Container */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
}

.app-interface {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

/* Generator Selector */
.generator-selector {
    padding: 2rem;
    text-align: center;
    background: var(--bg-primary);
}

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

.generator-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
    min-width: 200px;
    position: relative;
    overflow: hidden;
}

.generator-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.05) 0%, rgba(0, 122, 255, 0.02) 100%);
    opacity: 0;
    transition: var(--transition-smooth);
}

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

.generator-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.generator-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.generator-btn.active::before {
    display: none;
}

.generator-btn h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    letter-spacing: -0.01em;
}

.generator-btn p {
    font-size: 0.9rem;
    opacity: 0.7;
    font-weight: 400;
}

/* Rate Limit Disclaimer */
.rate-limit-disclaimer {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-top: 1.5rem;
    text-align: center;
}

.rate-limit-disclaimer p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.rate-limit-disclaimer i {
    color: #ff9500;
    font-size: 1rem;
}

/* Main App Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    min-height: 500px;
}

.sidebar {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-right: 1px solid var(--border-color);
}

.control-panel {
    background: transparent;
    border: none;
    padding: 0;
    margin-bottom: 2rem;
}

.control-panel:last-child {
    margin-bottom: 0;
}

.control-panel h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: -0.01em;
}

.control-group {
    margin-bottom: 1.5rem;
}

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

.control-group label {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

/* iOS-style Form Elements */
select, button, input[type="text"], textarea {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-weight: 400;
    transition: var(--transition-smooth);
    outline: none;
    font-family: inherit;
    width: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    appearance: none;
}

select:focus, input:focus, textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
    background: var(--bg-primary);
}

select:hover, input:hover, textarea:hover {
    border-color: var(--secondary-color);
}

/* iOS-style Buttons */
.btn {
    cursor: pointer;
    border: none;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    white-space: nowrap;
    transition: var(--transition-smooth);
    font-family: inherit;
    letter-spacing: -0.01em;
    position: relative;
    overflow: hidden;
    min-height: 44px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
}

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

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
}

/* Output Section */
.output-section {
    background: var(--bg-primary);
    padding: 2rem;
}

.output-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: -0.01em;
}

.output-content {
    background: transparent;
    border: none;
    padding: 0;
    min-height: 0;
    white-space: pre-wrap;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.6;
    position: relative;
}

.output-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.copy-btn {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.copy-btn:hover {
    background: var(--border-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.copy-btn.copied {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Rate Limit Disclaimer */
.rate-limit-disclaimer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(255, 149, 0, 0.08);
    border: 1px solid rgba(255, 149, 0, 0.2);
    border-radius: var(--radius-sm);
    color: var(--warning-color);
    font-size: 0.875rem;
    font-weight: 500;
}

.rate-limit-disclaimer i {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* iOS-style Chat Messages */
.chat-container {
    max-height: 500px;
    overflow-y: auto;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message-bubble {
    max-width: 75%;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    word-wrap: break-word;
    position: relative;
    font-size: 1rem;
    line-height: 1.4;
    box-shadow: var(--shadow-sm);
}

.message-bubble.p1 {
    background: var(--bg-primary);
    color: var(--text-primary);
    align-self: flex-start;
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 6px;
}

.message-bubble.p2 {
    background: var(--primary-color);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 6px;
}

.chat-wrapper {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Reddit Story Styling */
.reddit-wrapper {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--bg-primary);
}

.reddit-container {
    background: var(--bg-primary);
    padding: 2rem;
}

.reddit-title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.3;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
}

.reddit-title i {
    font-size: 1.25rem;
    margin-right: 0.75rem;
    color: #ff4500;
    flex-shrink: 0;
}

.reddit-content {
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-weight: 400;
    letter-spacing: -0.003em;
    text-align: justify;
}

.reddit-content p {
    margin-bottom: 1rem;
}

.reddit-content p:last-child {
    margin-bottom: 0;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    border: 2px solid currentColor;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* iOS-style Notifications */
.notification {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    color: white;
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    transform: translateX(-50%) translateY(-100%);
    transition: var(--transition-smooth);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    font-size: 0.9rem;
    letter-spacing: -0.01em;
}

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

.notification.success {
    background: rgba(52, 199, 89, 0.9);
}

.notification.error {
    background: rgba(255, 59, 48, 0.9);
}

.notification.warning {
    background: rgba(255, 149, 0, 0.9);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 4px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 2px;
}

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

/* Content Warning Styling */
.content-warning {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1.5rem;
}

/* Checkbox Styling */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.checkbox-label:hover {
    color: var(--primary-color);
}

input[type="checkbox"] {
    width: auto !important;
    margin: 0 !important;
    accent-color: var(--primary-color);
    transform: scale(1.1);
    cursor: pointer;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .generator-buttons {
        flex-direction: column;
        align-items: center;
    }

    .generator-btn {
        min-width: 100%;
        max-width: 320px;
    }

    .main-content {
        grid-template-columns: 1fr;
    }

    .sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .output-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0.5rem;
    }

    .sidebar, .output-section {
        padding: 1.5rem;
    }

    .chat-container {
        padding: 1rem;
    }

    .reddit-container {
        padding: 1.5rem;
    }
}