/**
 * Settings Page Styles
 * Unified with Main Theme
 */

/* ============================================
   Header
   ============================================ */
.settings-header {
    padding: 120px 0 50px;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 0%, rgba(168, 85, 247, 0.08) 0%, transparent 50%);
}

.page-title {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 8px;
}

.title-icon {
    font-size: 40px;
}

.page-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

/* ============================================
   Settings Layout
   ============================================ */
.settings-content {
    padding: 0 0 var(--space-20);
}

.settings-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--space-6);
}

/* ============================================
   Settings Navigation
   ============================================ */
.settings-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    position: sticky;
    top: 100px;
    align-self: flex-start;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.nav-item:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.nav-item.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow-sm);
}

.nav-icon {
    font-size: var(--font-size-lg);
}

/* ============================================
   Settings Panels
   ============================================ */
.settings-panels {
    display: flex;
    flex-direction: column;
}

.settings-panel {
    display: none;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.settings-panel.active {
    display: block;
}

.panel-header {
    padding: var(--space-6);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.panel-header p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.panel-body {
    padding: var(--space-6);
}

/* ============================================
   Profile Section
   ============================================ */
.profile-avatar-section {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.avatar-preview {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 3px solid var(--color-primary);
}

.avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.change-avatar-btn {
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.change-avatar-btn:hover {
    border-color: var(--color-primary);
}

/* ============================================
   Form Elements
   ============================================ */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    resize: none;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-50);
}

.save-btn {
    padding: var(--space-4) var(--space-8);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-xl);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-glow-sm);
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Setting Items
   ============================================ */
.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
}

.setting-item:last-child {
    border-bottom: none;
}

.setting-info h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.setting-info p,
.setting-info span {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.setting-select {
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    min-width: 200px;
}

/* Theme Selector */
.theme-selector {
    display: flex;
    gap: var(--space-2);
}

.theme-btn {
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-btn:hover {
    border-color: var(--color-primary);
}

.theme-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 26px;
    transition: 0.3s;
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-switch input:checked+.toggle-slider {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.toggle-switch input:checked+.toggle-slider::before {
    transform: translateX(22px);
}

/* ============================================
   Notification Groups
   ============================================ */
.notification-group {
    margin-bottom: var(--space-6);
}

.notification-group h4 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

/* ============================================
   Security & API Items
   ============================================ */
.security-item,
.api-item,
.data-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-3);
}

.security-icon,
.data-icon {
    font-size: var(--font-size-2xl);
}

.security-info,
.api-info,
.data-info {
    flex: 1;
}

.security-info h4,
.api-info h4,
.data-info h4 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.security-info p,
.api-info p,
.data-info p {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.status-enabled {
    color: var(--color-positive) !important;
}

.api-item img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    padding: 4px;
}

.api-item.connected {
    border: 1px solid var(--color-positive);
}

.action-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    opacity: 0.9;
}

.action-btn.secondary {
    background: var(--color-bg-hover);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.action-btn.danger,
.security-item.danger,
.data-item.danger {
    background: rgba(239, 68, 68, 0.1);
}

.action-btn.danger {
    background: var(--color-negative);
    color: white;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }

    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
        position: static;
        padding-bottom: var(--space-4);
    }

    .nav-item {
        white-space: nowrap;
    }
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .setting-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
}