/* CSS Design System for AI Audio SaaS Portal */

:root {
    --bg-primary: #080c14;
    --bg-secondary: #0e1424;
    --bg-card: rgba(18, 25, 41, 0.6);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(139, 92, 246, 0.2);
    
    /* Harmonious HSL Tailored Colors */
    --primary: hsl(263, 85%, 64%);
    --primary-glow: rgba(139, 92, 246, 0.35);
    --primary-hover: hsl(263, 85%, 70%);
    --accent-cyan: hsl(180, 100%, 45%);
    --accent-cyan-glow: rgba(0, 242, 254, 0.2);
    
    --success: hsl(142, 70%, 45%);
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: hsl(38, 92%, 50%);
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: hsl(350, 80%, 55%);
    --danger-bg: rgba(239, 68, 68, 0.1);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --font-sans: 'Vazirmatn', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --card-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Toast System */
.toast-container {
    position: fixed;
    top: 24px;
    left: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 380px;
    width: 100%;
}
.toast {
    background: rgba(14, 20, 36, 0.9);
    border: 1px solid var(--border-color);
    border-right: 4px solid var(--primary);
    border-radius: 8px;
    padding: 14px 20px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    transform: translateX(-100%);
    opacity: 0;
    animation: toast-in 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}
.toast.success { border-right-color: var(--success); }
.toast.warning { border-right-color: var(--warning); }
.toast.error { border-right-color: var(--danger); }

@keyframes toast-in {
    to { transform: translateX(0); opacity: 1; }
}

/* Common Components */
.btn {
    font-family: var(--font-sans);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    gap: 8px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}
.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.05);
}
.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}
.btn-block {
    width: 100%;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 24px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}
.card-glow-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
}
.card-header-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.card-desc {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 6px;
}

/* 1. Auth Page Container */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, rgba(0, 0, 0, 0) 40%),
                radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.05) 0%, rgba(0, 0, 0, 0) 40%);
}
.auth-card {
    background: rgba(15, 22, 40, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    max-width: 420px;
    width: 100%;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.auth-logo {
    text-align: center;
    margin-bottom: 30px;
}
.auth-logo svg {
    color: var(--primary);
    filter: drop-shadow(0 0 10px var(--primary-glow));
    margin-bottom: 12px;
}
.auth-logo h1 {
    font-size: 24px;
    font-weight: 800;
}
.auth-logo p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}
.auth-tabs {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 24px;
}
.auth-tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: var(--font-sans);
    border-radius: 6px;
    transition: var(--transition);
}
.auth-tab-btn.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.auth-form {
    display: none;
}
.auth-form.active {
    display: block;
    animation: fade-in 0.3s ease-in-out;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}
.form-group input, .form-group select {
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    transition: var(--transition);
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-control-readonly {
    background: rgba(255,255,255,0.03) !important;
    color: var(--text-secondary) !important;
    cursor: not-allowed;
}

/* Checkbox styling */
.form-group.tts-checkbox,
.tts-form-checkbox {
    flex-direction: row-reverse;
    align-items: center;
    margin-bottom: 12px;
}

.form-group.tts-checkbox input,
.tts-form-checkbox input {
    width: 18px;
    height: 18px;
    min-width: 18px;
    cursor: pointer;
}

.form-group.tts-checkbox label,
.tts-form-checkbox label {
    margin: 0;
    cursor: pointer;
}

/* 2. Main Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar styling */
.sidebar {
    width: 252px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;          /* prevents double scrollbar */
}

/* Fixed header inside sidebar */
.sidebar-header {
    padding: 20px 16px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}
.logo-area svg {
    color: var(--primary);
    filter: drop-shadow(0 0 8px var(--primary-glow));
}
.sidebar-user-info {
    display: flex;
    align-items: center;
}
.user-badge {
    font-size: 11px;
    font-weight: 700;
    background: var(--success-bg);
    color: var(--success);
    padding: 4px 10px;
    border-radius: 100px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Scrollable nav area */
.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px 10px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-primary) transparent;
}
.sidebar-menu::-webkit-scrollbar { width: 4px; }
.sidebar-menu::-webkit-scrollbar-track { background: transparent; }
.sidebar-menu::-webkit-scrollbar-thumb { background: var(--bg-primary); border-radius: 4px; }

/* Section label separators */
.menu-section-label {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 14px 8px 4px;
    margin-top: 2px;
}
.menu-section-label:first-child {
    padding-top: 2px;
}

/* Menu items - buttons */
.menu-item {
    background: none;
    border: none;
    font-family: var(--font-sans);
    text-align: right;
    padding: 9px 12px;
    border-radius: 7px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
/* Menu items - links (same look) */
.menu-item-link {
    text-decoration: none;
    color: var(--text-secondary);
}
.menu-item svg {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: var(--transition);
}
.menu-item:hover,
.menu-item-link:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
}
.menu-item:hover svg {
    color: var(--text-primary);
}
.menu-item.active {
    background: var(--primary-glow);
    color: var(--text-primary);
    border-right: 3px solid var(--primary);
}
.menu-item.active svg {
    color: var(--primary);
}
.sidebar-badge {
    margin-right: auto;
    padding: 2px 7px;
    font-size: 10px;
    border-radius: 100px;
}
.external-icon {
    margin-right: auto;
    opacity: 0.5;
}

/* Fixed footer */
.sidebar-footer {
    flex-shrink: 0;
    padding: 12px 10px;
    border-top: 1px solid var(--border-color);
}
.sidebar-footer .btn {
    font-size: 13px;
    padding: 9px 16px;
    gap: 8px;
}

/* Removed old menu-divider */
.menu-divider { display: none !important; }

/* Main Content styling */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
    overflow-y: auto;
}
.content-header {
    padding: 24px 40px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.content-header h2 {
    font-size: 20px;
    font-weight: 700;
}
.header-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-user-info span {
    font-size: 14px;
    color: var(--text-secondary);
}
.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    color: #fff;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 0 10px var(--primary-glow);
}

.content-body {
    padding: 40px;
    flex: 1;
}

.content-section {
    display: none;
}
.content-section.active {
    display: block;
    animation: fade-in 0.3s ease-in-out;
}

/* 3. Grid Systems */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.recharge-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
}
@media (max-width: 900px) {
    .recharge-grid {
        grid-template-columns: 1fr;
    }
}

.huge-number-display {
    font-size: 48px;
    font-weight: 900;
    color: var(--text-primary);
    margin: 16px 0 8px 0;
    display: flex;
    align-items: baseline;
    gap: 8px;
    background: linear-gradient(135deg, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.card-glow-primary .huge-number-display {
    background: linear-gradient(135deg, #fff, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.huge-number-display .unit {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    -webkit-text-fill-color: var(--text-secondary);
}

.mt-24 { margin-top: 24px; }
.mt-16 { margin-top: 16px; }
.mb-24 { margin-bottom: 24px; }

/* Guide step components */
.guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 24px;
}
.step {
    display: flex;
    gap: 16px;
    background: rgba(0,0,0,0.15);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid var(--border-color);
}
.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-glow);
    border: 1px solid var(--primary);
    color: var(--text-primary);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.step h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}
.step p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Tables styling */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}
.table {
    width: 100%;
    border-collapse: collapse;
    text-align: right;
    font-size: 14px;
}
.table th, .table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.table th {
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    background: rgba(0,0,0,0.15);
}
.table tbody tr {
    transition: var(--transition);
}
.table tbody tr:hover {
    background: rgba(255,255,255,0.02);
}
.table td {
    color: var(--text-primary);
}
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* Badges */
.badge {
    display: inline-flex;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: rgba(0, 242, 254, 0.1); color: var(--accent-cyan); }

/* Bank Details design */
.bank-details-card {
    background: rgba(0,0,0,0.25);
    border: 1px dashed var(--primary);
    border-radius: 12px;
    padding: 20px;
}
.bank-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
}
.bank-row:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}
.bank-row .label {
    color: var(--text-secondary);
}
.bank-row .val {
    font-weight: 600;
}
.highlighted-card-num {
    font-size: 16px;
    color: var(--accent-cyan);
    font-weight: 700 !important;
    letter-spacing: 1px;
}

/* Alert Boxes */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.5;
}
.alert-info {
    background: rgba(99, 102, 241, 0.08);
    color: #cbd5e1;
    border-right: 4px solid var(--primary);
}

/* Modal Dialogs */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
    animation: fade-in 0.25s ease-out;
}
.modal-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    max-width: 460px;
    width: 100%;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
    margin: auto;
}
.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}
.modal-header h3 {
    font-size: 16px;
    font-weight: 700;
}
.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}
.modal-close-btn:hover {
    color: var(--text-primary);
}
.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

.copy-key-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
    background: rgba(0,0,0,0.3);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    width: max-content;
}
.copy-key-text {
    font-family: monospace;
    font-size: 13px;
    color: var(--text-secondary);
}
.copy-btn {
    background: none;
    border: none;
    color: var(--accent-cyan);
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
    transition: var(--transition);
}
.copy-btn:hover {
    color: #fff;
    text-shadow: 0 0 5px var(--accent-cyan);
}

/* Support Ticket Chat Bubble Styling */
.ticket-messages-container {
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: 400px;
    overflow-y: auto;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: rgba(0,0,0,0.18);
}
.chat-message {
    padding: 12px 18px;
    border-radius: 12px;
    max-width: 75%;
    line-height: 1.6;
    font-size: 13.5px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.15);
}
.chat-message.user {
    background: rgba(255, 255, 255, 0.05);
    align-self: flex-start;
    border-right: 3px solid var(--accent-cyan);
    border-top-left-radius: 0;
}
.chat-message.admin {
    background: var(--primary-glow);
    align-self: flex-end;
    border-left: 3px solid var(--primary);
    border-top-right-radius: 0;
}
.chat-message-meta {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 6px;
    gap: 15px;
}
.chat-message-author {
    font-weight: bold;
    color: var(--text-primary);
}

/* Mobile menu toggler hide by default */
.mobile-menu-toggle-btn {
    display: none;
}

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

.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

/* Media Queries for Responsive Design */
@media (max-width: 768px) {
    .dashboard-container {
        flex-direction: column;
    }
    
    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        right: 0;
        width: 270px;
        transform: translateX(100%);
        z-index: 1010;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -5px 0 25px rgba(0,0,0,0.5);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .mobile-menu-toggle-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border-color);
        color: var(--text-primary);
        cursor: pointer;
        padding: 8px;
        border-radius: 8px;
        transition: var(--transition);
    }
    
    .mobile-menu-toggle-btn:hover {
        background: rgba(255, 255, 255, 0.1);
        color: var(--primary);
    }
    
    .content-header {
        padding: 16px 20px;
    }
    
    .content-body {
        padding: 20px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .recharge-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .modal-card {
        width: 100%;
        margin: 10px;
    }
    
    .card {
        padding: 16px;
    }
    
    .huge-number-display {
        font-size: 36px;
    }
    
    /* Optimize table on mobile */
    .table th, .table td {
        padding: 12px 10px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .dashboard-container { flex-direction: column; }

    .sidebar {
        position: fixed;
        top: 0; bottom: 0; right: 0;
        width: 270px;
        transform: translateX(100%);
        z-index: 1010;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -5px 0 25px rgba(0,0,0,0.5);
    }
    .sidebar.open { transform: translateX(0); }

    .mobile-menu-toggle-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(255,255,255,0.05);
        border: 1px solid var(--border-color);
        color: var(--text-primary);
        cursor: pointer;
        padding: 8px;
        border-radius: 8px;
        transition: var(--transition);
    }
    .mobile-menu-toggle-btn:hover { background: rgba(255,255,255,0.1); color: var(--primary); }

    .content-header  { padding: 16px 20px; }
    .content-body    { padding: 20px; }

    .dashboard-grid  { grid-template-columns: 1fr; gap: 16px; }
    .recharge-grid   { grid-template-columns: 1fr; gap: 16px; }

    .modal-card { width: 100%; margin: 10px; }
    .card       { padding: 16px; }

    .huge-number-display { font-size: 36px; }
    .table th, .table td { padding: 12px 10px; font-size: 13px; }
}


/* ════════════════════════════════════════════════════════════════════════════════
   TTS PROVIDER MANAGEMENT PANEL - UNIFIED STYLING
   ════════════════════════════════════════════════════════════════════════════════ */

.tts-panel-wrap { display: flex; flex-direction: column; gap: 20px; }

/* TTS Tab Navigation */
.tts-tabs {
    display: flex;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0;
    margin-bottom: 20px;
    overflow-x: auto;
    scrollbar-width: thin;
}

.tts-tab-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    transition: var(--transition);
}

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

.tts-tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tts-tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.tts-tab-content.active {
    display: block;
}

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

/* Section Header */
.tts-section-header {
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.tts-section-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px 0;
}

.tts-section-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

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

.tts-select {
    padding: 8px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.tts-select:hover { border-color: var(--primary); }
.tts-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }

/* Providers Grid */
.tts-providers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.tts-provider-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tts-provider-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(79, 172, 254, 0.15);
    transform: translateY(-4px);
}

.tts-provider-icon {
    font-size: 48px;
    line-height: 1;
}

.tts-provider-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.tts-provider-card p {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0;
}

.tts-provider-card .btn {
    width: 100%;
    padding: 8px 12px;
    font-size: 13px;
}

/* Methods List */
.tts-methods-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tts-method-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: center;
    transition: var(--transition);
}

.tts-method-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.tts-method-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tts-method-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tts-method-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.tts-method-badge {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 100px;
    font-weight: 600;
}

.tts-method-badge.active {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.tts-method-badge.inactive {
    background: rgba(200, 200, 200, 0.1);
    color: var(--text-muted);
}

.tts-method-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}

.tts-method-actions {
    display: flex;
    gap: 8px;
}

.tts-method-actions .btn {
    padding: 6px 12px;
    font-size: 12px;
}

.tts-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 14px;
}

/* Stats Grid */
.tts-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.tts-stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.tts-stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.tts-stat-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Metrics List */
.tts-metrics-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tts-metric-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: center;
}

.tts-metric-info {
    display: grid;
    gap: 8px;
}

.tts-metric-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.tts-metric-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.tts-metric-status {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 100px;
    font-weight: 600;
}

.tts-metric-status.ok {
    background: var(--success-bg);
    color: var(--success);
}

.tts-metric-status.warning {
    background: #fef3c7;
    color: #92400e;
}

.tts-metric-status.error {
    background: var(--danger-bg);
    color: var(--danger);
}

.tts-metric-bars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.tts-metric-bar {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tts-metric-bar-label {
    font-size: 11px;
    color: var(--text-muted);
}

.tts-metric-bar-value {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
}

.tts-progress {
    background: var(--bg-primary);
    border-radius: 4px;
    height: 6px;
    overflow: hidden;
}

.tts-progress-fill {
    background: var(--primary);
    height: 100%;
    transition: width 0.3s ease;
}

.tts-metric-actions {
    display: flex;
    gap: 8px;
}

/* Modal */
.tts-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 1;
    transition: opacity 0.2s;
}

.tts-modal.hidden {
    display: none;
    opacity: 0;
}

.tts-modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    max-width: 500px;
    width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

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

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

.tts-modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.tts-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
    width: 28px; height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tts-modal-close:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
    border-radius: 4px;
}

/* Form */
.tts-form {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tts-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tts-form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.tts-form-group input,
.tts-form-group select,
.tts-form-group textarea {
    padding: 8px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    font-size: 13px;
    font-family: var(--font-sans);
    transition: var(--transition);
}

.tts-form-group input:hover,
.tts-form-group select:hover,
.tts-form-group textarea:hover {
    border-color: var(--primary);
}

.tts-form-group input:focus,
.tts-form-group select:focus,
.tts-form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.tts-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.tts-form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-direction: row-reverse;
}

.tts-form-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.tts-form-checkbox label {
    margin: 0;
    cursor: pointer;
}

.tts-form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.tts-form-actions .btn {
    padding: 8px 16px;
    font-size: 13px;
}

/* Alert */
.tts-alert {
    position: fixed;
    top: 20px;
    left: 20px;
    max-width: 400px;
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    z-index: 2001;
    animation: slideInLeft 0.3s ease-out;
}

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

.tts-alert.hidden { display: none; }
.tts-alert.success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.3); }
.tts-alert.error   { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.3); }
.tts-alert.warning { background: #fef3c7; color: #92400e; border: 1px solid rgba(217, 119, 6, 0.3); }
.tts-alert.info    { background: #dbeafe; color: #1e40af; border: 1px solid rgba(59, 130, 246, 0.3); }

/* Validation Result */
.tts-validate-result {
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 500;
    display: none;
    margin-top: 8px;
}

.tts-validate-result.success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.tts-validate-result.error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.tts-validate-result.info {
    background: #eff6ff;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* Responsive */
@media (max-width: 1024px) {
    .tts-providers-grid { grid-template-columns: repeat(2, 1fr); }
    .tts-form-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .tts-providers-grid { grid-template-columns: 1fr; }
    .tts-stats-grid { grid-template-columns: 1fr; }
    .tts-method-item, .tts-metric-item { grid-template-columns: 1fr; }
    .tts-header-actions { flex-direction: column; width: 100%; }
    .tts-header-actions .btn, .tts-select { width: 100%; }
    .tts-modal-content { width: 95vw; }
}