/* ===================================
   E-Care 2.0 — DARK PREMIUM Components
   Glass Morphism + Glow Effects
   =================================== */

/* ===================================
   1. Buttons
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    height: var(--btn-height-md);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
    font-size: var(--text-sm);
    position: relative;
    overflow: hidden;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-sm { height: var(--btn-height-sm); padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }
.btn-lg { height: var(--btn-height-lg); padding: var(--space-3) var(--space-6); font-size: var(--text-base); }

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    border-color: rgba(14,165,233,0.3);
    box-shadow: 0 2px 8px rgba(14,165,233,0.25);
}
.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
    box-shadow: 0 4px 16px rgba(14,165,233,0.35);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border-color: var(--glass-border);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--border-medium);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-500), #15803d);
    color: white;
    box-shadow: 0 2px 8px rgba(34,197,94,0.25);
}
.btn-success:hover:not(:disabled) {
    box-shadow: 0 4px 16px rgba(34,197,94,0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-500), #b91c1c);
    color: white;
    box-shadow: 0 2px 8px rgba(239,68,68,0.25);
}
.btn-danger:hover:not(:disabled) {
    box-shadow: 0 4px 16px rgba(239,68,68,0.35);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary-500);
    color: var(--color-primary-light);
}
.btn-outline:hover:not(:disabled) {
    background: var(--primary-50);
    border-color: var(--color-primary-light);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}
.btn-ghost:hover:not(:disabled) {
    background: rgba(14,165,233,0.06);
    color: var(--color-primary-light);
}

.btn-icon { width: var(--btn-height-md); padding: 0; }
.btn-icon.btn-sm { width: var(--btn-height-sm); }
.btn-icon.btn-lg { width: var(--btn-height-lg); }

/* ===================================
   2. Cards — Glass Morphism
   =================================== */

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}
.card-header {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--glass-border);
}
.card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--text-white);
}
.card-subtitle {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}
.card-body { padding: var(--space-6); }
.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--glass-border);
    background: var(--chip-bg);
}

.card-hover {
    cursor: pointer;
}
.card-hover:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow-primary);
    transform: translateY(-3px);
}

/* ===================================
   3. Badges — Glowing
   =================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 0.2rem 0.6rem;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    line-height: 1.2;
    border: 1px solid transparent;
}
.badge-success { background: rgba(34,197,94,0.12); color: #4ade80; border-color: rgba(34,197,94,0.25); }
.badge-warning { background: rgba(245,158,11,0.12); color: #fbbf24; border-color: rgba(245,158,11,0.25); }
.badge-danger  { background: rgba(239,68,68,0.12); color: #f87171; border-color: rgba(239,68,68,0.25); }
.badge-info    { background: rgba(14,165,233,0.12); color: #38bdf8; border-color: rgba(14,165,233,0.25); }
.badge-purple  { background: rgba(139,92,246,0.12); color: #a78bfa; border-color: rgba(139,92,246,0.25); }
.badge-pink    { background: rgba(236,72,153,0.12); color: #f472b6; border-color: rgba(236,72,153,0.25); }
.badge-gray    { background: rgba(100,116,139,0.12); color: var(--gray-400); border-color: rgba(100,116,139,0.2); }
.badge-dot::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ===================================
   4. Forms — Dark Glass
   =================================== */

.form-group { margin-bottom: var(--space-4); }
.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
}
.form-label-required::after { content: '*'; color: var(--danger-500); margin-left: var(--space-1); }

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    height: var(--input-height-md);
    padding: var(--space-2) var(--space-3);
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(14,165,233,0.15), var(--shadow-glow-primary);
    background: var(--input-bg-focus);
}
.form-input::placeholder { color: var(--text-tertiary); }
.form-select {
    -webkit-appearance: none; -moz-appearance: none; appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; cursor: pointer;
}
.form-select option { background: var(--select-option-bg); color: var(--select-option-color); padding: 8px; }
.form-textarea { height: auto; min-height: 100px; resize: vertical; }
.form-input-sm, .form-select-sm { height: var(--input-height-sm); font-size: var(--text-xs); }
.form-input-lg, .form-select-lg { height: var(--input-height-lg); font-size: var(--text-base); }

.form-input-group { position: relative; }
.form-input-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}
.form-input-group .form-input { padding-left: var(--space-10); }

.form-error { margin-top: var(--space-2); font-size: var(--text-xs); color: var(--danger-500); }
.form-input-error { border-color: var(--danger-500); }
.form-input-error:focus { box-shadow: 0 0 0 3px rgba(239,68,68,0.15); }

.form-checkbox, .form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    color: var(--text-secondary);
}
.form-checkbox input, .form-radio input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-500);
}

/* ===================================
   5. Tables — Dark Glass
   =================================== */

.table-wrapper {
    overflow-x: auto;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
}
.table { width: 100%; border-collapse: collapse; }
.table thead { background: rgba(14,165,233,0.04); }
.table th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.table td {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-primary);
    border-bottom: 1px solid rgba(56,189,248,0.06);
}
.table tbody tr { transition: background var(--transition-fast); }
.table tbody tr:hover { background: rgba(14,165,233,0.04); }
.table tbody tr:last-child td { border-bottom: none; }
.table-cell-center { text-align: center; }
.table-cell-right { text-align: right; }

/* ===================================
   6. Tabs — Glowing Underline
   =================================== */

.tabs { border-bottom: 1px solid var(--glass-border); }
.tabs-list { display: flex; gap: var(--space-1); overflow-x: auto; }
.tab-item {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-tertiary);
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}
.tab-item:hover { color: var(--text-primary); }
.tab-item.active {
    color: var(--color-primary-light);
    border-bottom-color: var(--color-primary);
}

.tab-content { padding: var(--space-6) 0; }

/* ===================================
   7. Modals — Dark Glass
   =================================== */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(2,6,23,0.7);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}
.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl), var(--shadow-glow-primary);
    max-width: var(--max-w-lg);
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    z-index: var(--z-modal);
}
.modal-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-title { font-size: var(--text-xl); font-weight: var(--font-bold); color: var(--text-white); }
.modal-close {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.modal-close:hover { background: rgba(14,165,233,0.1); color: var(--text-primary); }
.modal-body { padding: var(--space-6); overflow-y: auto; }
.modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

/* ===================================
   8. Alerts & Toasts — Glowing Borders
   =================================== */

.alert {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    border: 1px solid;
}
.alert-success { background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.25); color: #4ade80; }
.alert-warning { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.25); color: #fbbf24; }
.alert-danger  { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.25); color: #f87171; }
.alert-info    { background: rgba(14,165,233,0.08); border-color: rgba(14,165,233,0.25); color: #38bdf8; }

.toast {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    padding: var(--space-4) var(--space-6);
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-tooltip);
    animation: slide-in-right 0.3s ease;
    color: var(--text-primary);
    font-size: var(--text-sm);
}

/* ===================================
   9. Pagination
   =================================== */

.pagination {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.pagination-item {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}
.pagination-item:hover { background: rgba(14,165,233,0.08); color: var(--text-primary); }
.pagination-item.active {
    background: var(--primary-500);
    color: white;
    border-color: var(--primary-500);
}

/* ===================================
   10. Progress Bars
   =================================== */

.progress { height: 6px; background: rgba(100,116,139,0.15); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; transition: width 0.6s ease; }
.progress-primary { background: linear-gradient(90deg, var(--primary-500), var(--primary-400)); }
.progress-success { background: linear-gradient(90deg, var(--success-500), #4ade80); }
.progress-warning { background: linear-gradient(90deg, var(--warning-500), #fbbf24); }
.progress-danger  { background: linear-gradient(90deg, var(--danger-500), #f87171); }

/* ===================================
   11. Tooltips
   =================================== */

.tooltip {
    position: relative;
}
.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 0.3rem 0.6rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: var(--z-tooltip);
}
.tooltip:hover::after { opacity: 1; }

/* ===================================
   12. Avatars
   =================================== */

.avatar {
    width: 40px; height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-500), var(--purple-500));
    display: flex; align-items: center; justify-content: center;
    color: white;
    font-weight: var(--font-bold);
    font-size: var(--text-sm);
    flex-shrink: 0;
    border: 2px solid rgba(56,189,248,0.2);
}
.avatar-sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 72px; height: 72px; font-size: var(--text-2xl); }

/* ===================================
   13. Status Indicators
   =================================== */

.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}
.status-online  { background: var(--success-500); box-shadow: 0 0 6px rgba(34,197,94,0.5); }
.status-offline { background: var(--gray-500); }
.status-busy    { background: var(--danger-500); box-shadow: 0 0 6px rgba(239,68,68,0.5); }
.status-away    { background: var(--warning-500); box-shadow: 0 0 6px rgba(245,158,11,0.5); }

/* ===================================
   14. Utility Classes
   =================================== */

.text-primary   { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-tertiary) !important; }
.text-white     { color: var(--text-white) !important; }
.text-success   { color: var(--success-500) !important; }
.text-warning   { color: var(--warning-500) !important; }
.text-danger    { color: var(--danger-500) !important; }
.text-info      { color: var(--color-primary-light) !important; }

.bg-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}
.glow-primary { box-shadow: var(--shadow-glow-primary); }
.glow-success { box-shadow: var(--shadow-glow-success); }
.glow-danger  { box-shadow: var(--shadow-glow-danger); }

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ===================================
   15. Scrollbar Dark Theme
   =================================== */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(100,116,139,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(100,116,139,0.5); }

/* ===================================
   16. Theme Toggle
   =================================== */

.theme-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    margin: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
}
.theme-switcher-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-tertiary);
    white-space: nowrap;
}
.theme-select {
    flex: 1;
    height: 28px;
    padding: 0 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--input-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    padding-right: 22px;
    transition: all var(--transition-fast);
}
.theme-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(14,165,233,0.1);
}
.theme-select option {
    background: var(--select-option-bg);
    color: var(--select-option-color);
}

/* Mobile theme toggle button */
.m-theme-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
}
.m-theme-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}