/* ============================================================================
   Twitter AI Post Generator - Modern AI-Styled Interface
   ============================================================================ */

/* CSS Variables for theming */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #16161f;
    --bg-hover: #1e1e2a;
    --text-primary: #e7e9ea;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent-blue: #1d9bf0;
    --accent-blue-hover: #1a8cd8;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --border-color: #2a2a35;
    --border-light: #3a3a45;
    --gradient-ai: linear-gradient(135deg, #1d9bf0 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-card: linear-gradient(145deg, #16161f 0%, #1a1a25 100%);
    --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 30px rgba(29, 155, 240, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* Top Navigation Bar */
.top-nav-bar {
    position: absolute;
    top: 20px;
    left: 20px;
    width: auto;
    height: auto;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    gap: 8px;
    z-index: 1000;
}

.top-nav-bar .nav-icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.top-nav-bar .nav-icon-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
}

.top-nav-bar .nav-icon-btn i {
    font-size: 16px;
}

/* Hide top nav on mobile */
@media (max-width: 768px) {
    .top-nav-bar {
        display: none;
    }
    
    body {
        padding-top: 0;
    }
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding-top: 50px;
    overflow-x: hidden;
}

/* Background Effects */
.bg-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: orbFloat 20s ease-in-out infinite;
}

.bg-orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-blue);
    top: -100px;
    left: -100px;
}

.bg-orb-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-purple);
    top: 50%;
    right: -50px;
    animation-delay: -7s;
}

.bg-orb-3 {
    width: 350px;
    height: 350px;
    background: var(--accent-pink);
    bottom: -100px;
    left: 30%;
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(10px, 10px) scale(1.02); }
}

/* Main Container */
.twitter-container {
    min-height: 100vh;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.twitter-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px;
    position: relative;
}

.ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gradient-ai);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.ai-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.ai-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto 16px;
    line-height: 1.6;
}

.connection-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: background var(--transition-normal);
}

.status-indicator.connected {
    background: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green);
}

.status-indicator.disconnected {
    background: var(--accent-red);
    box-shadow: 0 0 10px var(--accent-red);
}

.status-text {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Login Section */
.login-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
}

.login-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px;
    max-width: 450px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-ai);
}

.login-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.login-card h2 {
    font-size: 1.75rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.6;
}

.twitter-login-button {
    background: var(--gradient-ai);
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    justify-content: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.twitter-login-button::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;
}

.twitter-login-button:hover::before {
    left: 100%;
}

.twitter-login-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.twitter-login-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.twitter-logo {
    font-size: 20px;
    font-weight: 900;
}

.error-text {
    color: var(--accent-red);
    font-size: 13px;
    margin-top: 16px;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Main Dashboard Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 300px 1fr 380px;
    gap: 24px;
    min-height: calc(100vh - 200px);
}

/* AI Suggestions Panel (Left) */
.ai-suggestions-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.suggestion-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: all var(--transition-normal);
}

.suggestion-card:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-md);
}

.suggestion-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.suggestion-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.suggestion-icon.trending { background: rgba(29, 155, 240, 0.15); }
.suggestion-icon.hashtag { background: rgba(139, 92, 246, 0.15); }
.suggestion-icon.tone { background: rgba(236, 72, 153, 0.15); }
.suggestion-icon.length { background: rgba(16, 185, 129, 0.15); }

.suggestion-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.suggestion-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.suggestion-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.suggestion-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
    transform: translateX(4px);
}

.suggestion-item.active {
    background: rgba(29, 155, 240, 0.15);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.trend-heat {
    margin-left: auto;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(29, 155, 240, 0.2);
    color: var(--accent-blue);
}

/* Tone Chips */
.tone-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tone-chip {
    padding: 8px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tone-chip:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.tone-chip.active {
    background: rgba(139, 92, 246, 0.15);
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

/* Length Indicator */
.length-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.length-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.length-option:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
}

.length-option.active {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--accent-green);
}

.length-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    overflow: hidden;
}

.length-fill {
    height: 100%;
    background: var(--accent-green);
    border-radius: 3px;
    transition: width var(--transition-normal);
}

.length-label {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 60px;
}

/* Main Composer (Center) */
.composer-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.twitter-composer {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.composer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.premium-badge {
    background: var(--gradient-ai);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.premium-badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.close-button {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.close-button:hover {
    background: var(--bg-hover);
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.composer-body {
    padding: 24px;
}

.prompt-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.composer-textarea {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.6;
    resize: none;
    outline: none;
    min-height: 120px;
    padding: 16px;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.composer-textarea::placeholder {
    color: var(--text-muted);
}

.composer-textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.1);
}

.composer-textarea:disabled {
    opacity: 0.5;
}

.textarea-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
}

.character-counter {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.char-progress {
    width: 40px;
    height: 40px;
    position: relative;
}

.char-progress svg {
    transform: rotate(-90deg);
}

.char-progress-bg {
    fill: none;
    stroke: var(--bg-tertiary);
    stroke-width: 3;
}

.char-progress-fill {
    fill: none;
    stroke: var(--accent-blue);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dashoffset var(--transition-normal);
}

.char-count-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 10px;
    font-weight: 600;
}

.reply-settings-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.reply-dropdown {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    outline: none;
    transition: all var(--transition-fast);
}

.reply-dropdown:hover {
    border-color: var(--accent-blue);
}

.validation-messages {
    margin-top: 16px;
}

.validation-message {
    background: rgba(29, 155, 240, 0.1);
    border: 1px solid rgba(29, 155, 240, 0.3);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 13px;
    color: var(--accent-blue);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Topic Ideas Section */
.topic-ideas {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.topic-ideas-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.topic-ideas-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.topic-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.topic-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 14px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
}

.topic-item:hover {
    background: var(--bg-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
}

/* Action Buttons */
.composer-actions {
    padding: 20px 24px;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    gap: 12px;
}

.generate-button {
    flex: 1;
    background: var(--gradient-ai);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.generate-button::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;
}

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

.generate-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.generate-button.loading {
    background: var(--bg-tertiary);
}

/* Spinner Animation */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* AI Processing Animation */
.ai-processing {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-dots {
    display: flex;
    gap: 4px;
}

.ai-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-blue);
    animation: aiPulse 1.4s ease-in-out infinite;
}

.ai-dot:nth-child(2) { animation-delay: 0.2s; }
.ai-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes aiPulse {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.3); opacity: 1; }
}

/* Generated Post Panel (Right) */
.generated-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.generated-post-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
}

.generated-post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-ai);
}

.generated-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
}

.generated-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.generated-label-icon {
    font-size: 18px;
}

.post-stats {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stat-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.stat-badge.chars { color: var(--accent-blue); }
.stat-badge.valid { color: var(--accent-green); }
.stat-badge.warning { color: var(--accent-orange); }

.generated-body {
    padding: 24px;
}

.post-preview-wrapper {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    position: relative;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.preview-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-ai);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.preview-author-info {
    flex: 1;
}

.preview-name {
    font-weight: 700;
    font-size: 15px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.verified-badge {
    color: var(--accent-blue);
    font-size: 14px;
}

.preview-handle {
    font-size: 14px;
    color: var(--text-muted);
}

.preview-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
}

.preview-text .hashtag {
    color: var(--accent-blue);
}

.preview-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 13px;
    color: var(--text-muted);
}

/* Action Buttons Panel */
.action-buttons-panel {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
}

.action-buttons-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.action-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.action-btn.copy:hover { border-color: var(--accent-purple); color: var(--accent-purple); }
.action-btn.regenerate:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.action-btn.edit:hover { border-color: var(--accent-orange); color: var(--accent-orange); }
.action-btn.schedule:hover { border-color: var(--accent-pink); color: var(--accent-pink); }

.action-btn.post-now {
    grid-column: span 2;
    background: var(--gradient-ai);
    color: white;
    border: none;
    padding: 14px 20px;
    font-size: 15px;
}

.action-btn.post-now:hover:not(:disabled) {
    box-shadow: var(--shadow-glow);
}

/* History Section */
.history-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.history-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.history-clear {
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.history-clear:hover {
    color: var(--accent-red);
}

.history-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 200px;
    overflow-y: auto;
}

.history-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.history-item:hover {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
}

.history-prompt {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-meta {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Rate Limit Info */
.rate-limit-info {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    padding: 16px;
    color: var(--accent-orange);
    font-size: 13px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-desc {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 280px;
    line-height: 1.6;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 500;
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
}

.notification.success {
    background: var(--accent-green);
}

.notification.error {
    background: var(--accent-red);
}

.notification.info {
    background: var(--accent-blue);
}

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

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

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

/* Schedule Modal */
.schedule-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.schedule-modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

.schedule-modal h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.schedule-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 20px;
    outline: none;
}

.schedule-input:focus {
    border-color: var(--accent-blue);
}

.schedule-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.schedule-cancel,
.schedule-confirm {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.schedule-cancel:hover {
    background: var(--bg-hover);
}

.schedule-confirm {
    background: var(--gradient-ai);
    border: none;
    color: white;
}

.schedule-confirm:hover {
    box-shadow: var(--shadow-glow);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .dashboard-layout {
        grid-template-columns: 1fr 350px;
    }
    
    .ai-suggestions-panel {
        display: none;
    }
}

@media (max-width: 900px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .generated-panel {
        order: -1;
    }
}

@media (max-width: 768px) {
    .twitter-container {
        padding: 10px;
        padding-top: 70px;
    }
    
    .ai-title {
        font-size: 1.75rem;
    }
    
    .login-card {
        padding: 24px;
    }
    
    .composer-body {
        padding: 16px;
    }
    
    .composer-actions {
        flex-direction: column;
        padding: 16px;
    }
    
    .action-buttons-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .action-btn.post-now {
        grid-column: span 2;
    }
    
    /* Enhanced Twitter mobile styles */
    .ai-header {
        padding: 16px;
        margin-bottom: 16px;
    }
    
    .ai-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
    }
    
    /* Dashboard layout */
    .dashboard-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .composer-panel,
    .generated-panel,
    .ai-suggestions-panel {
        border-radius: 16px;
    }
    
    .ai-suggestions-panel {
        display: none;
    }
    
    /* Composer styles */
    .composer-header {
        padding: 14px 16px;
    }
    
    .composer-header h2 {
        font-size: 1.1rem;
    }
    
    .tweet-textarea {
        min-height: 100px;
        font-size: 15px;
        padding: 14px;
    }
    
    .character-count {
        font-size: 0.85rem;
    }
    
    /* Composer options */
    .composer-options {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }
    
    .option-group {
        width: 100%;
    }
    
    .option-group label {
        font-size: 0.9rem;
    }
    
    .option-group select {
        width: 100%;
        padding: 10px 12px;
        font-size: 14px;
    }
    
    /* Action buttons */
    .action-btn {
        padding: 12px;
        font-size: 0.85rem;
        border-radius: 10px;
    }
    
    .action-btn i {
        font-size: 1rem;
    }
    
    /* Generated posts */
    .generated-header {
        padding: 14px 16px;
    }
    
    .generated-header h2 {
        font-size: 1.1rem;
    }
    
    .generated-posts-list {
        padding: 12px;
    }
    
    .tweet-card {
        padding: 16px;
        margin-bottom: 12px;
    }
    
    .tweet-content {
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .tweet-meta {
        flex-direction: column;
        gap: 8px;
        margin-top: 12px;
    }
    
    .tweet-actions {
        flex-direction: column;
        gap: 8px;
    }
    
    .tweet-actions button {
        width: 100%;
        padding: 10px;
    }
    
    /* History panel */
    .history-panel {
        padding: 16px;
    }
    
    .history-header {
        padding-bottom: 12px;
    }
    
    .history-item {
        padding: 12px;
    }
    
    .history-preview {
        font-size: 0.85rem;
    }
    
    .history-meta {
        font-size: 0.75rem;
    }
    
    /* Rate limit info */
    .rate-limit-info {
        padding: 12px;
        font-size: 0.85rem;
    }
    
    /* Empty state */
    .empty-state {
        padding: 32px 16px;
    }
    
    .empty-icon {
        font-size: 36px;
    }
    
    .empty-title {
        font-size: 1rem;
    }
    
    /* Schedule modal */
    .schedule-modal-content {
        padding: 24px 16px;
        width: 95%;
    }
    
    .schedule-modal h3 {
        font-size: 1.1rem;
    }
    
    .schedule-input {
        padding: 14px;
        font-size: 15px;
    }
    
    .schedule-actions {
        flex-direction: column;
    }
    
    .schedule-cancel,
    .schedule-confirm {
        width: 100%;
        padding: 12px;
    }
    
    /* Notification */
    .notification {
        left: 12px;
        right: 12px;
        top: 12px;
        padding: 12px 16px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .twitter-container {
        padding: 8px;
    }
    
    .ai-title {
        font-size: 1.5rem;
    }
    
    .ai-header {
        padding: 12px;
    }
    
    .login-card {
        padding: 20px 16px;
    }
    
    .login-card h2 {
        font-size: 1.25rem;
    }
    
    .action-buttons-grid {
        grid-template-columns: 1fr;
    }
    
    .action-btn.post-now {
        grid-column: span 1;
    }
    
    .composer-body {
        padding: 12px;
    }
    
    .tweet-textarea {
        min-height: 80px;
        font-size: 14px;
        padding: 12px;
    }
    
    .tweet-card {
        padding: 12px;
    }
    
    .tweet-content {
        font-size: 0.9rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* ==================== MOBILE PERFORMANCE & ACCESSIBILITY ==================== */
/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
    .action-btn,
    .tweet-action-btn,
    .login-btn,
    .generate-btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Reduce hover effects on touch devices */
    .tweet-card:hover,
    .composer-panel:hover {
        transform: none;
    }
}

/* Safe area support */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .twitter-container {
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
    }
}

/* Accessibility - reduce motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}