/* Design Tokens & Theme Variable Settings */
:root {
    --bg-primary: #0a0c10;
    --bg-secondary: #121620;
    --bg-glass: rgba(18, 22, 32, 0.65);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f0f3fa;
    --text-muted: #8b9bb4;
    
    --primary: #8b5cf6; /* Violet */
    --primary-glow: rgba(139, 92, 246, 0.3);
    --secondary: #10b981; /* Emerald */
    --accent: #f59e0b; /* Amber */
    
    --neon-pink: #ff007f;
    --neon-blue: #00f0ff;
    --neon-yellow: #ffea00;
    
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    
    --shadow-premium: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 10% 10%, rgba(139, 92, 246, 0.1) 0px, transparent 50%),
        radial-gradient(at 90% 85%, rgba(0, 240, 255, 0.08) 0px, transparent 50%);
    color: var(--text-primary);
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Container Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 280px;
    background: rgba(10, 12, 16, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    padding: 24px;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-glass);
}

.logo-emoji {
    font-size: 28px;
    filter: drop-shadow(0 0 8px rgba(255, 234, 0, 0.5));
    animation: rotateEmoji 6s linear infinite;
}

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

.logo-area h2 {
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
}

.badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: #a78bfa;
}

.neon-rainbow-badge {
    background: linear-gradient(45deg, #ff0055, #00f0ff);
    color: #fff;
    border: none;
    font-size: 11px;
    padding: 4px 10px;
    box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
}

.green-badge {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    text-align: left;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: var(--transition);
}

.nav-btn i {
    font-size: 16px;
    transition: var(--transition);
}

.nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.nav-btn.active {
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(0, 240, 255, 0.1) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    box-shadow: 0 4px 15px 0 rgba(139, 92, 246, 0.1);
}

.nav-btn.active i {
    color: #a78bfa;
    transform: scale(1.1);
}

.sidebar-footer {
    padding-top: 20px;
    border-top: 1px solid var(--border-glass);
}

.settings-trigger-btn {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border: 1px solid var(--border-glass);
    padding: 12px;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.settings-trigger-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    margin-left: 280px;
    padding: 40px;
    max-width: calc(100vw - 280px);
}

/* Header styling */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-glass);
}

.header-title h1 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
    background: linear-gradient(to right, #ffffff, #8b9bb4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-title p {
    font-size: 14px;
    color: var(--text-muted);
}

.api-status {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.08);
    padding: 8px 14px;
    border-radius: 50px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--secondary);
    box-shadow: 0 0 10px var(--secondary);
}

.status-indicator.online {
    animation: pulseStatus 2s infinite;
}

@keyframes pulseStatus {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

.status-text {
    font-size: 12px;
    font-weight: 600;
    color: #34d399;
}

/* Section Management */
.section-panel {
    animation: fadeIn 0.4s ease-out;
}

.section-panel.hidden {
    display: none !important;
}

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

/* Premium Cards */
.card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glass);
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: var(--shadow-premium);
}

.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.01);
}

.card-header h3 {
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header h3 i {
    color: var(--primary);
}

/* Grid Layout for Simulator page */
.grid-layout {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 30px;
    align-items: start;
}

/* Chat Simulator Panel */
.chat-simulator-card {
    display: flex;
    flex-direction: column;
    height: 600px;
}

.chat-status {
    font-size: 12px;
    color: var(--text-muted);
}

.chat-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: rgba(0, 0, 0, 0.1);
}

.message {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    max-width: 85%;
    animation: msgIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes msgIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    border: 1px solid var(--border-glass);
    flex-shrink: 0;
}

.msg-bubble {
    padding: 12px 16px;
    border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    font-size: 14px;
    line-height: 1.5;
}

.msg-bubble code {
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    color: #f472b6;
    font-family: Consolas, monospace;
}

.message.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message.user-message .msg-bubble {
    background: var(--primary);
    border-color: rgba(139, 92, 246, 0.5);
    border-radius: var(--radius-md) 0 var(--radius-md) var(--radius-md);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.15);
}

.message.bot-message .msg-bubble {
    border-left: 3px solid var(--primary);
}

.time {
    display: block;
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 6px;
    text-align: right;
}

.user-message .time {
    color: rgba(255, 255, 255, 0.7);
}

.chat-input-area {
    padding: 16px;
    border-top: 1px solid var(--border-glass);
    display: flex;
    gap: 12px;
    background: rgba(255, 255, 255, 0.01);
}

.chat-input-area input {
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.chat-input-area input:focus {
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

/* Chat Image Result Styling */
.chat-result-img {
    margin-top: 8px;
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 260px;
    border: 2px solid rgba(255, 234, 0, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.chat-result-img:hover {
    transform: scale(1.02);
    border-color: var(--neon-yellow);
    box-shadow: 0 0 15px rgba(255, 234, 0, 0.4);
}

/* Inspector Panel Styling */
.inspector-card {
    height: 600px;
    display: flex;
    flex-direction: column;
}

.inspector-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex-grow: 1;
}

.preview-container {
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-height: 250px;
}

.preview-container img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: scaleIn 0.3s ease-out;
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.empty-state {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    background: linear-gradient(135deg, var(--text-muted), var(--border-glass));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.empty-state .subtext {
    font-size: 12px;
}

/* Spinner & Loading */
.loading-state {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loading-funny-quote {
    font-style: italic;
    font-size: 13px;
    color: var(--accent);
    margin-top: 4px;
    animation: blinkText 2s infinite ease-in-out;
}

@keyframes blinkText {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.spinner {
    width: 60px;
    height: 60px;
    position: relative;
}

.double-bounce1, .double-bounce2 {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--primary);
    opacity: 0.6;
    position: absolute;
    top: 0;
    left: 0;
    animation: bounceSpinner 2.0s infinite ease-in-out;
}

.double-bounce2 {
    background-color: var(--neon-blue);
    animation-delay: -1.0s;
}

@keyframes bounceSpinner {
    0%, 100% { transform: scale(0.0); }
    50% { transform: scale(1.0); }
}

.hidden {
    display: none !important;
}

/* Metadata Preview Panel */
.metadata-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 18px;
    animation: fadeIn 0.4s ease-out;
}

.meta-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    align-items: start;
    font-size: 13px;
}

.meta-label {
    font-weight: 700;
    color: var(--text-muted);
}

.meta-val {
    color: var(--text-primary);
}

.greeting-text-highlight {
    font-weight: 800;
    color: var(--neon-yellow);
    text-shadow: 0 0 8px rgba(255, 234, 0, 0.2);
}

.code-block {
    font-family: Consolas, monospace;
    background: rgba(0, 0, 0, 0.2);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    max-height: 80px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

button, .btn-primary, .btn-secondary {
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    text-decoration: none;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, rgba(139, 92, 246, 0.8) 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Developer Hub Layout */
.developer-body {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-alert {
    display: flex;
    gap: 16px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    align-items: flex-start;
    font-size: 14px;
    line-height: 1.6;
}

.info-alert i {
    color: var(--primary);
    font-size: 18px;
    margin-top: 3px;
}

.api-links-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.api-link-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.method {
    font-size: 10px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    color: #fff;
}

.method.get {
    background: #0ea5e9;
}

.method.post {
    background: #10b981;
}

.link-header h4 {
    font-size: 15px;
    font-weight: 700;
}

.link-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

.url-copy-row {
    display: flex;
    margin-top: 10px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-glass);
}

.url-copy-row input {
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    padding: 12px 14px;
    color: #38bdf8;
    font-family: Consolas, monospace;
    font-size: 13px;
    outline: none;
}

.btn-copy {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    padding: 0 16px;
    border: none;
    border-left: 1px solid var(--border-glass);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-copy:hover {
    background: rgba(255, 255, 255, 0.1);
}

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

/* Code Snippets */
.code-snippets-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.code-snippets-section h3 {
    font-size: 16px;
    font-weight: 700;
}

.tab-header {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 10px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    padding: 8px 16px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.02);
}

.tab-btn.active {
    color: var(--primary);
    background: rgba(139, 92, 246, 0.08);
}

.tab-content {
    background: #07090e;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 20px;
    overflow-x: auto;
    animation: fadeIn 0.3s ease-out;
}

.tab-content pre {
    margin: 0;
}

.tab-content code {
    font-family: Consolas, monospace;
    font-size: 13px;
    color: #e2e8f0;
    line-height: 1.6;
}

/* History Grid Layout */
.history-count {
    font-size: 13px;
    color: var(--text-muted);
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    padding: 24px;
}

.history-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.history-item:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.history-img-wrapper {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: #000;
}

.history-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.history-item:hover .history-img-wrapper img {
    transform: scale(1.05);
}

.history-info {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.history-text {
    font-size: 12px;
    color: var(--neon-yellow);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    font-size: 11px;
    color: var(--text-muted);
}

/* Modal Overlay & Settings Card */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    animation: fadeIn 0.2s ease-out;
}

.modal-card {
    width: 500px;
    max-width: 90%;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group input, .form-group select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus {
    border-color: rgba(139, 92, 246, 0.5);
}

.help-text {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.4;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-glass);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: rgba(255, 255, 255, 0.01);
}

/* Animations for loading */
@keyframes shiver {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(1px, -1px) rotate(0.2deg); }
    50% { transform: translate(-1px, 1px) rotate(-0.2deg); }
    75% { transform: translate(1px, 1px) rotate(0.1deg); }
}