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

:root {
    --primary: #6C4CE0;
    --primary-light: #9B7BFF;
    --primary-dark: #4A2EA8;
    --accent: #FF6B9D;
    --bg-start: #0F0A2A;
    --bg-end: #1E1647;
    --glass-bg: rgba(255, 255, 255, 0.07);
    --glass-border: rgba(255, 255, 255, 0.12);
    --text-white: #F0EEFF;
    --text-muted: #B8B0D6;
    --radius: 24px;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(145deg, var(--bg-start), var(--bg-end));
    color: var(--text-white);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

.glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.25;
    pointer-events: none;
    z-index: 0;
}
.glow-1 {
    top: -200px;
    right: -200px;
    background: var(--primary);
}
.glow-2 {
    bottom: -300px;
    left: -200px;
    background: var(--accent);
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0 16px;
    border-bottom: 1px solid var(--glass-border);
    flex-wrap: wrap;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-decoration: none;
    color: var(--text-white);
}
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 14px;
    font-size: 22px;
    color: #fff;
    box-shadow: 0 8px 24px rgba(108, 76, 224, 0.4);
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
    font-weight: 500;
    font-size: 15px;
    flex-wrap: wrap;
}
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}
.nav-links a:hover {
    color: var(--text-white);
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-light);
    transition: var(--transition);
}
.nav-links a:hover::after {
    width: 100%;
}
.nav-cta {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 40px;
    color: #fff !important;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(108, 76, 224, 0.3);
}
.nav-cta:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 28px rgba(108, 76, 224, 0.5);
}
.nav-cta::after {
    display: none !important;
}

/* ===== Buttons ===== */
.btn-primary {
    padding: 16px 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 60px;
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 32px rgba(108, 76, 224, 0.35);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 48px rgba(108, 76, 224, 0.5);
}
.btn-secondary {
    padding: 16px 44px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    color: var(--text-white);
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-4px);
}

/* ===== Hero (首页) ===== */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 80px 0 60px;
}
.hero-badge {
    display: inline-block;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    padding: 6px 20px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 28px;
}
.hero-badge span {
    color: var(--accent);
    font-weight: 600;
}
.hero h1 {
    font-size: clamp(44px, 10vw, 80px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    background: linear-gradient(to right, #fff, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
}
.hero p {
    max-width: 580px;
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}
.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ===== Stats ===== */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 30px;
    padding: 40px 0 60px;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    margin: 20px 0 60px;
}
.stat-item {
    text-align: center;
}
.stat-number {
    font-size: 38px;
    font-weight: 700;
    background: linear-gradient(to right, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Footer ===== */
.footer {
    padding: 30px 0 40px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    color: var(--text-muted);
}
.footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}
.footer a:hover {
    color: var(--text-white);
}
.footer-links {
    display: flex;
    gap: 24px;
}

/* ===== Reveal (scroll) ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Model Cards (models.php) ===== */
.page-header {
    padding: 40px 0 20px;
}
.page-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: -1px;
}
.page-header p {
    color: var(--text-muted);
    font-size: 18px;
    margin-top: 8px;
}

.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin: 20px 0 30px;
}
.filter-bar a {
    padding: 8px 20px;
    border-radius: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    font-size: 14px;
}
.filter-bar a:hover,
.filter-bar a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    padding: 20px 0 60px;
}
.model-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: var(--transition);
}
.model-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.09);
    box-shadow: var(--shadow);
}
.model-card .provider {
    font-size: 13px;
    color: var(--primary-light);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.model-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 8px 0 12px;
}
.model-card .description {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 14px;
}
.model-card .model-id-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 8px 12px;
    margin-bottom: 14px;
    border: 1px solid var(--glass-border);
}
.model-card .model-id-wrapper .label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}
.model-card .model-id-wrapper .id-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--text-white);
    flex: 1;
    word-break: break-all;
}
.model-card .model-id-wrapper .copy-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    padding: 4px 12px;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    font-family: inherit;
}
.model-card .model-id-wrapper .copy-btn:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.model-card .model-id-wrapper .copy-btn.copied {
    background: #34D399;
    color: #fff;
    border-color: #34D399;
}
.model-card .status {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 40px;
    font-size: 13px;
    font-weight: 500;
}
.status.enabled {
    background: rgba(52, 211, 153, 0.2);
    color: #34D399;
}
.status.disabled {
    background: rgba(239, 68, 68, 0.2);
    color: #F87171;
}
.empty {
    text-align: center;
    padding: 80px 0;
    color: var(--text-muted);
}
.empty a {
    color: var(--primary-light);
    text-decoration: none;
}

/* ===== Toast (models.php) ===== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    padding: 12px 24px;
    border-radius: 40px;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid var(--glass-border);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 999;
}
.toast.show {
    opacity: 1;
}

/* ===== Admin (admin.php) ===== */
.login-box {
    max-width: 400px;
    margin: 80px auto;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
}
.login-box h2 {
    margin-bottom: 20px;
}
.login-box input[type="password"] {
    width: 100%;
    padding: 14px 20px;
    border-radius: 40px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 16px;
    outline: none;
    transition: var(--transition);
}
.login-box input:focus {
    border-color: var(--primary-light);
}
.login-box button {
    margin-top: 16px;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.login-box button:hover {
    transform: scale(1.02);
}

.form-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px 28px;
    margin: 30px 0;
}
.form-card h2 {
    margin-bottom: 20px;
}
.form-group {
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.form-group label {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 14px;
}
.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-light);
}
.form-group textarea {
    min-height: 80px;
    resize: vertical;
}
.form-group.checkbox {
    flex-direction: row;
    align-items: center;
    gap: 12px;
}
.form-group.checkbox input {
    width: auto;
}
.btn-submit {
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 40px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(108, 76, 224, 0.4);
}

.table-wrap {
    overflow-x: auto;
    margin: 30px 0 60px;
}
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}
th,
td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}
th {
    background: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    color: var(--text-muted);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
td {
    color: var(--text-white);
}
.badge {
    padding: 4px 14px;
    border-radius: 40px;
    font-size: 13px;
    font-weight: 500;
}
.badge.enabled {
    background: rgba(52, 211, 153, 0.2);
    color: #34D399;
}
.badge.disabled {
    background: rgba(239, 68, 68, 0.2);
    color: #F87171;
}
.btn-delete {
    color: #F87171;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 4px 12px;
    border-radius: 40px;
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-delete:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: #F87171;
}
.alert {
    padding: 12px 20px;
    border-radius: 12px;
    margin: 16px 0;
}
.alert-success {
    background: rgba(52, 211, 153, 0.15);
    border: 1px solid #34D399;
    color: #34D399;
}
.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid #F87171;
    color: #F87171;
}

/* ===== API Docs (docs.php) ===== */
.doc-header {
    padding: 40px 0 20px;
}
.doc-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: -1px;
}
.doc-header p {
    color: var(--text-muted);
    font-size: 18px;
    margin-top: 8px;
}
.doc-content {
    padding: 20px 0 60px;
}
.doc-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 40px 0 16px;
    letter-spacing: -0.5px;
}
.doc-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--primary-light);
}
.doc-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
}
.doc-content code,
.doc-content pre {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 2px 8px;
    font-size: 14px;
}
.doc-content pre {
    padding: 20px;
    overflow-x: auto;
    border: 1px solid var(--glass-border);
    margin: 16px 0;
}
.doc-content pre code {
    background: none;
    padding: 0;
}
.doc-content .highlight {
    background: rgba(108, 76, 224, 0.15);
    border-left: 3px solid var(--primary);
    padding: 12px 20px;
    border-radius: 8px;
    margin: 16px 0;
}
.doc-content ul {
    margin: 12px 0 20px 24px;
    color: var(--text-muted);
}
.doc-content ul li {
    margin-bottom: 6px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .navbar {
        justify-content: center;
    }
    .nav-links {
        gap: 16px;
        font-size: 14px;
        justify-content: center;
    }
    .hero h1 {
        font-size: 44px;
    }
    .hero p {
        font-size: 17px;
    }
    .stats {
        grid-template-columns: 1fr 1fr;
    }
    .footer {
        flex-direction: column;
        text-align: center;
    }
    .models-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    .models-grid {
        grid-template-columns: 1fr;
    }
    .model-card .model-id-wrapper {
        flex-wrap: wrap;
    }
}