/* =============================================
   CUSTOMER PANEL - ROOF TATTOO GALLERY
   Dark Glassmorphism Theme
   ============================================= */

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

:root {
    --glass-bg: rgba(0, 0, 0, 0.55);
    --glass-bg-light: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(14px);
    --accent: #ffffff;
    --accent-hover: #e8e8e8;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.35);
    --border: rgba(255, 255, 255, 0.1);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --radius: 14px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
}

:root {
    --font-ui: 'Montserrat', system-ui, -apple-system, sans-serif;
    --font-display: 'Bebas Neue', 'Montserrat', system-ui, sans-serif;
}

body {
    font-family: var(--font-ui);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    background: #0d0d0d;
    overflow-x: hidden;
    max-width: 100%;
}

.customer-panel {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    max-width: 100%;
    overflow-x: hidden;
}

/* =============================================
   SIDEBAR
   ============================================= */

.sidebar {
    width: 280px;
    background: rgba(8, 8, 8, 0.80);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 30px 20px;
    border-bottom: 1px solid var(--glass-border);
    text-align: center;
}

.sidebar-logo {
    max-width: 160px;
    height: auto;
    margin-bottom: 15px;
}

.sidebar-header h2 {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.85);
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: 2px;
}

.sidebar-user {
    padding: 25px 20px;
    border-bottom: 1px solid var(--glass-border);
    text-align: center;
}

.user-avatar {
    font-size: 3.5rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

.user-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.user-phone {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 14px 25px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 10px;
    margin: 3px 10px;
}

.nav-item:hover {
    background: var(--glass-bg-light);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.nav-item i {
    width: 24px;
    margin-right: 15px;
    font-size: 1.1rem;
}

.logout-btn {
    margin: 20px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: #ffffff;
    border-color: #ffffff;
    color: #000000;
}

/* =============================================
   MAIN CONTENT
   ============================================= */

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 30px;
    min-height: 100vh;
    min-height: 100dvh;
    max-width: 100%;
    overflow-x: hidden;
    box-sizing: border-box;
}

/* Sidebar overlay (mobil) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 99;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.content-header {
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.content-header h1 {
    font-size: 2.4rem;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.new-appointment-btn {
    background: #ffffff;
    color: #000000;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 12px rgba(255, 255, 255, 0.1);
}

.new-appointment-btn:hover {
    transform: translateY(-2px);
    background: #e8e8e8;
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}

.new-appointment-btn i {
    font-size: 1.1rem;
}

.mobile-menu-btn {
    display: none;
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.12);
}

.theme-toggle-btn {
    display: none;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* =============================================
   FILTERS
   ============================================= */

.section-filters {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.filter-btn.active {
    background: #ffffff;
    border-color: #ffffff;
    color: #000000;
    font-weight: 600;
}

/* =============================================
   APPOINTMENTS GRID
   ============================================= */

.appointments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 22px;
}

.appointment-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.appointment-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: rgba(255, 255, 255, 0.4);
}

.appointment-card.status-confirmed::before { background: var(--success); }
.appointment-card.status-pending::before   { background: var(--warning); }
.appointment-card.status-completed::before { background: var(--info); }
.appointment-card.status-cancelled::before { background: var(--danger); }

.appointment-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
}

.appointment-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.appointment-date {
    font-size: 1.2rem;
    font-weight: 400;
    font-family: var(--font-display);
    letter-spacing: 1px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.appointment-time {
    font-size: 1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 5px;
}

.status-badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.pending   { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.status-badge.confirmed { background: rgba(34, 197, 94, 0.15);  color: var(--success); }
.status-badge.completed { background: rgba(59, 130, 246, 0.15); color: var(--info); }
.status-badge.cancelled { background: rgba(239, 68, 68, 0.15);  color: var(--danger); }
.status-badge.no_show   { background: rgba(150,150,150,0.15);   color: var(--text-muted); }
.status-badge.slot_pending,
.status-badge.request_pending { background: rgba(168, 85, 247, 0.15); color: #c084fc; }

.appointment-card.status-slot_pending::before,
.appointment-card.status-request_pending::before { background: #a855f7; }

.section-hint {
    margin-bottom: 22px;
    padding: 14px 18px;
    border-radius: var(--radius);
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.section-hint i {
    margin-right: 8px;
    color: var(--info);
}

.request-wait-note {
    margin-top: 8px;
    padding: 12px 14px;
    border-radius: 10px;
    background: rgba(168, 85, 247, 0.08);
    border: 1px solid rgba(168, 85, 247, 0.2);
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.45;
}

.request-wait-note i {
    margin-right: 6px;
    color: #c084fc;
}

.slot-select-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    text-decoration: none;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.35), rgba(59, 130, 246, 0.35));
    border: 1px solid rgba(168, 85, 247, 0.45);
    color: var(--text-primary);
}

.slot-select-btn:hover {
    border-color: rgba(168, 85, 247, 0.7);
    transform: translateY(-1px);
}

.appointment-details {
    margin-bottom: 20px;
}

.detail-row {
    display: flex;
    align-items: center;
    padding: 11px 0;
    border-bottom: 1px solid var(--glass-border);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row i {
    width: 30px;
    color: rgba(255, 255, 255, 0.55);
    font-size: 1rem;
}

.detail-label {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.detail-value {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.appointment-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.action-btn {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.action-btn.cancel-btn {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.action-btn.cancel-btn:hover {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}

.action-btn.review-btn {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.action-btn.review-btn:hover {
    background: var(--warning);
    color: #000;
    border-color: var(--warning);
}

.action-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.review-display {
    margin-top: 15px;
    padding: 14px;
    background: rgba(245, 158, 11, 0.08);
    border-radius: 8px;
    border-left: 4px solid var(--warning);
}

.review-stars {
    display: flex;
    gap: 5px;
    margin-bottom: 8px;
}

.review-stars i {
    color: var(--warning);
    font-size: 1rem;
}

.review-comment {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* =============================================
   LOYALTY / SADAKAT PUANI
   ============================================= */

.sidebar-loyalty-points {
    margin-top: 8px;
    font-size: 0.82rem;
    color: #f5c542;
    font-weight: 600;
}

.sidebar-loyalty-points i {
    margin-right: 4px;
}

.loyalty-card {
    max-width: 600px;
    margin: 0 auto 24px;
    background: linear-gradient(145deg, rgba(201, 162, 39, 0.18), rgba(0, 0, 0, 0.55));
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(245, 197, 66, 0.25);
}

.loyalty-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.loyalty-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(245, 197, 66, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #f5c542;
}

.loyalty-card-header h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.loyalty-card-sub {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.loyalty-balance {
    text-align: center;
    margin: 16px 0 22px;
}

.loyalty-balance-value {
    font-size: 3rem;
    font-weight: 700;
    color: #f5c542;
    line-height: 1;
}

.loyalty-balance-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 4px;
}

.loyalty-progress-wrap {
    margin-bottom: 16px;
}

.loyalty-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.loyalty-progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    overflow: hidden;
}

.loyalty-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #c9a227, #f5c542);
    border-radius: 999px;
    transition: width 0.4s ease;
}

.loyalty-status-msg {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.5;
    margin-bottom: 14px;
}

.loyalty-active-code {
    margin-bottom: 14px;
}

.loyalty-code-box {
    background: rgba(0, 0, 0, 0.35);
    border: 1px dashed rgba(245, 197, 66, 0.45);
    border-radius: 10px;
    padding: 14px;
    text-align: center;
}

.loyalty-code-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.loyalty-code-value {
    display: block;
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: #f5c542;
    margin-bottom: 6px;
}

.loyalty-code-expiry {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.loyalty-redeem-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #c9a227, #f5c542);
    color: #1a1a1a;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}

.loyalty-redeem-btn:hover {
    filter: brightness(1.05);
}

.loyalty-redeem-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.loyalty-history-title {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.loyalty-history-list {
    list-style: none;
    max-height: 220px;
    overflow-y: auto;
}

.loyalty-history-list li {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: 8px;
    align-items: start;
    padding: 10px 0;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.85rem;
}

.loyalty-history-delta {
    font-weight: 700;
}

.loyalty-history-delta.plus {
    color: var(--success);
}

.loyalty-history-delta.minus {
    color: var(--danger);
}

.loyalty-history-desc {
    color: var(--text-primary);
}

.loyalty-history-date {
    color: var(--text-muted);
    font-size: 0.78rem;
    white-space: nowrap;
}

.loyalty-history-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* =============================================
   PROFILE SECTION
   ============================================= */

.profile-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
}

.profile-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--glass-border);
}

.profile-avatar {
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.profile-header h3 {
    font-size: 2rem;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: 2px;
}

.profile-info {
    margin-bottom: 30px;
}

.profile-row {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--glass-border);
}

.profile-row:last-child {
    border-bottom: none;
}

.profile-label {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.profile-value {
    font-weight: 600;
    color: var(--text-primary);
}

.profile-note {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid rgba(255, 255, 255, 0.3);
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.profile-note i {
    color: rgba(255, 255, 255, 0.55);
    font-size: 1.1rem;
    margin-top: 2px;
}

.profile-note p {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* =============================================
   MODALS
   ============================================= */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal {
    background: rgba(10, 10, 10, 0.82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
    color: var(--text-primary);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(50px); }
    to   { opacity: 1; transform: translateY(0); }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-close-btn {
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close-btn:hover {
    background: rgba(255,255,255,0.15);
    color: var(--text-primary);
}

.modal-body {
    padding: 25px;
}

.modal-body p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.appointment-details-preview {
    background: rgba(255,255,255,0.04);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.modal-warning {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(245, 158, 11, 0.1);
    padding: 12px;
    border-radius: 8px;
    color: var(--warning);
    font-size: 0.88rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.modal-footer {
    padding: 20px 25px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.modal-footer button {
    padding: 10px 22px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.primary-btn {
    background: #ffffff;
    color: #000000;
    font-weight: 600;
}

.primary-btn:hover {
    background: #e8e8e8;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.15);
}

.secondary-btn {
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border) !important;
    color: var(--text-secondary);
}

.secondary-btn:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
}

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

.danger-btn:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239,68,68,0.35);
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    transition: border-color 0.3s ease;
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

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

.form-group textarea:focus {
    outline: none;
    border-color: rgba(255,255,255,0.3);
}

.rating-stars {
    display: flex;
    gap: 10px;
    font-size: 2rem;
    margin-top: 10px;
}

.rating-stars .star {
    color: rgba(255,255,255,0.2);
    cursor: pointer;
    transition: all 0.3s ease;
}

.rating-stars .star:hover,
.rating-stars .star.active {
    color: var(--warning);
    transform: scale(1.1);
}

.error-message {
    color: var(--danger);
    font-size: 0.88rem;
    margin-top: 10px;
}

/* =============================================
   TOAST
   ============================================= */

.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    transform: translateY(200px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2000;
    max-width: 350px;
    font-size: 0.95rem;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success { border-color: var(--success); }
.toast.error   { border-color: var(--danger); }

/* =============================================
   UTILITIES
   ============================================= */

.loading-text {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
    font-size: 1.05rem;
}

.empty-message {
    text-align: center;
    color: var(--text-secondary);
    padding: 60px 20px;
    font-size: 1.05rem;
}

.empty-message i {
    font-size: 3rem;
    margin-bottom: 20px;
    opacity: 0.4;
    display: block;
}

/* =============================================
   FOOTER
   ============================================= */

.page-footer {
    position: relative;
    width: 100%;
    margin-top: 30px;
    padding: 12px 24px;
    background: transparent;
    text-align: left;
}

.page-footer p {
    margin: 0;
    font-size: 0.82rem;
    color: rgba(150, 150, 150, 0.5);
}

.page-footer a {
    color: rgba(150, 150, 150, 0.7);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.page-footer a:hover {
    color: var(--accent);
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 1024px) {
    .appointments-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .sidebar-overlay {
        display: block;
    }

    .sidebar {
        transform: translateX(-100%);
        max-width: min(280px, 88vw);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 72px 16px 20px;
        padding-top: max(72px, calc(16px + env(safe-area-inset-top, 0px)));
    }

    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .new-appointment-btn {
        flex: 1;
    }

    .mobile-menu-btn {
        display: block;
    }

    .appointments-grid {
        grid-template-columns: 1fr;
        min-width: 0;
    }

    .appointment-card:hover {
        transform: none;
    }

    .filter-btn {
        font-size: 15px;
        min-height: 44px;
    }

    .new-appointment-btn {
        font-size: 15px;
        min-height: 44px;
    }

    .profile-card {
        padding: 22px;
    }

    .content-header h1 {
        font-size: 1.8rem;
    }

    .section-filters {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
        justify-content: center;
    }

    .toast {
        right: 15px;
        bottom: 15px;
        left: 15px;
        max-width: none;
    }

    .page-footer {
        text-align: center;
    }
}