/* ===================================
   E-Care 2.0 — DARK PREMIUM Desktop Layout
   Sidebar + Main Content Dark Glass
   =================================== */

/* ===================================
   Base Reset
   =================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background: var(--bg-deep);
    overflow-x: hidden;
}
h1,h2,h3,h4,h5,h6 { font-weight: var(--font-bold); line-height: var(--leading-tight); color: var(--text-white); }
h1 { font-size: var(--text-4xl); } h2 { font-size: var(--text-3xl); } h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); } h5 { font-size: var(--text-lg); } h6 { font-size: var(--text-base); }
p { margin-bottom: var(--space-3); color: var(--text-secondary); }
a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary-400); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; color: inherit; }
input:focus, textarea:focus, select:focus { outline: none; }
select { background-color: var(--input-bg); }
select option { background: var(--select-option-bg); color: var(--select-option-color); }
img { max-width: 100%; height: auto; display: block; }
table { border-collapse: collapse; width: 100%; }

/* ===================================
   App Container
   =================================== */

.app-container {
    display: flex;
    min-height: 100vh;
    background: var(--bg-deep);
}

/* ===================================
   Sidebar — Dark Navy
   =================================== */

.sidebar {
    width: var(--w-sidebar);
    background: var(--bg-primary);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: var(--z-sticky);
    transition: width var(--transition-base);
}
.sidebar.collapsed { width: var(--w-sidebar-collapsed); }

/* Sidebar Header */
.sidebar-header {
    height: var(--h-header);
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
    font-weight: var(--font-extrabold);
    color: var(--text-white);
}
.sidebar-logo-icon {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--primary-500), var(--purple-500));
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    color: white;
    font-size: var(--text-sm);
    box-shadow: 0 0 12px rgba(14,165,233,0.3);
}
.sidebar-logo-text { transition: opacity var(--transition-fast); }
.sidebar.collapsed .sidebar-logo-text { opacity: 0; display: none; }

.sidebar-toggle {
    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);
}
.sidebar-toggle:hover { background: rgba(14,165,233,0.1); color: var(--text-primary); }

/* Sidebar Navigation */
.sidebar-nav { flex: 1; overflow-y: auto; padding: var(--space-4); }

.nav-section-title {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: var(--space-4) var(--space-3) var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    margin-bottom: var(--space-1);
    border: 1px solid transparent;
}
.nav-item:hover {
    background: rgba(14,165,233,0.06);
    color: var(--text-primary);
    border-color: rgba(14,165,233,0.08);
}
.nav-item.active {
    background: rgba(14,165,233,0.1);
    color: var(--color-primary-light);
    border-color: rgba(14,165,233,0.2);
    font-weight: var(--font-semibold);
}
.nav-item.active::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--primary-500);
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(14,165,233,0.5);
}
.nav-item-icon {
    width: 20px;
    text-align: center;
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    flex-shrink: 0;
}
.nav-item.active .nav-item-icon { color: var(--color-primary-light); }
.nav-item-text { flex: 1; }

.nav-badge {
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: var(--font-bold);
    background: rgba(239,68,68,0.15);
    color: #f87171;
    border: 1px solid rgba(239,68,68,0.25);
    min-width: 20px;
    text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--glass-border);
}
.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
    cursor: pointer;
}
.sidebar-user:hover { background: rgba(14,165,233,0.06); }
.sidebar-user-name { font-size: var(--text-sm); font-weight: var(--font-semibold); color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-role { font-size: var(--text-xs); color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user > div:last-child { min-width: 0; overflow: hidden; }

/* ===================================
   Main Content Area
   =================================== */

.main-content {
    flex: 1;
    margin-left: var(--w-sidebar);
    min-height: 100vh;
    background: var(--bg-deep);
    transition: margin-left var(--transition-base);
}
.sidebar.collapsed ~ .main-content { margin-left: var(--w-sidebar-collapsed); }

/* Top Header Bar */
.header-bar {
    height: var(--h-header);
    padding: 0 var(--space-8);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
}
.header-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
}
.header-subtitle {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: 2px;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}
.header-search {
    position: relative;
}
.header-search input {
    width: 240px;
    height: 36px;
    padding: 0 var(--space-4) 0 36px;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    -webkit-appearance: none;
}
.header-search input:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(14,165,233,0.1);
    width: 300px;
}
.header-search i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

.header-icon-btn {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
    border: 1px solid transparent;
}
.header-icon-btn:hover {
    background: rgba(14,165,233,0.08);
    color: var(--color-primary-light);
    border-color: rgba(14,165,233,0.15);
}
.header-icon-btn .notification-dot {
    position: absolute;
    top: 6px; right: 6px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--danger-500);
    box-shadow: 0 0 6px rgba(239,68,68,0.5);
}

/* Page Content */
.page-content {
    padding: var(--space-6) var(--space-8);
}

/* ===================================
   Page Title / Breadcrumb
   =================================== */

.page-header {
    margin-bottom: var(--space-6);
}
.page-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-extrabold);
    color: var(--text-white);
    margin-bottom: var(--space-1);
}
.page-description {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-bottom: var(--space-2);
}
.breadcrumb a { color: var(--text-tertiary); }
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb-separator { color: var(--text-tertiary); }

/* ===================================
   Stat/KPI Cards — Glowing
   =================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}
.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    border-radius: 3px 3px 0 0;
}
.stat-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-primary);
}
.stat-card-blue::before   { background: linear-gradient(90deg, var(--primary-500), var(--primary-400)); }
.stat-card-green::before  { background: linear-gradient(90deg, var(--success-500), #4ade80); }
.stat-card-orange::before { background: linear-gradient(90deg, var(--warning-500), #fbbf24); }
.stat-card-red::before    { background: linear-gradient(90deg, var(--danger-500), #f87171); }
.stat-card-purple::before { background: linear-gradient(90deg, var(--purple-500), var(--purple-400)); }
.stat-card-pink::before   { background: linear-gradient(90deg, var(--pink-500), var(--pink-400)); }

.stat-icon {
    width: 42px; height: 42px;
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}
.stat-icon-blue   { background: rgba(14,165,233,0.12); color: var(--primary-400); }
.stat-icon-green  { background: rgba(34,197,94,0.12); color: #4ade80; }
.stat-icon-orange { background: rgba(245,158,11,0.12); color: #fbbf24; }
.stat-icon-red    { background: rgba(239,68,68,0.12); color: #f87171; }
.stat-icon-purple { background: rgba(139,92,246,0.12); color: var(--purple-400); }

.stat-label { font-size: var(--text-xs); color: var(--text-tertiary); margin-bottom: var(--space-1); }
.stat-value {
    font-size: var(--text-2xl);
    font-weight: var(--font-extrabold);
    color: var(--text-white);
    line-height: 1;
}
.stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    margin-top: var(--space-2);
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-full);
}
.stat-change-up   { background: rgba(34,197,94,0.12); color: #4ade80; }
.stat-change-down { background: rgba(239,68,68,0.12); color: #f87171; }

/* ===================================
   Dashboard Widgets Grid
   =================================== */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}
.widget {
    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);
}
.widget:hover {
    border-color: rgba(14,165,233,0.25);
}
.widget-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.widget-title {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.widget-title i { color: var(--color-primary-light); font-size: var(--text-sm); }
.widget-body { padding: var(--space-5); }

/* ===================================
   Filter Bar
   =================================== */

.filter-bar {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}
.filter-bar .form-input,
.filter-bar .form-select {
    height: 36px;
    font-size: var(--text-sm);
    background: var(--input-bg-focus);
    border-color: rgba(56,189,248,0.1);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
}
.filter-bar .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 10px center; padding-right: 28px;
}
.filter-bar .form-select option { background: var(--select-option-bg); color: var(--select-option-color); }

/* ===================================
   Empty State
   =================================== */

.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    color: var(--text-tertiary);
}
.empty-state i { font-size: 3rem; margin-bottom: var(--space-4); opacity: 0.3; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: var(--space-2); }
.empty-state p { color: var(--text-tertiary); font-size: var(--text-sm); }

/* ===================================
   Responsive — Tablet
   =================================== */

@media (max-width: 1024px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
    .page-content { padding: var(--space-4); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .stats-grid { grid-template-columns: 1fr; }
    .header-bar { padding: 0 var(--space-4); }
    .header-search input { width: 160px; }
    .header-search input:focus { width: 200px; }
    .filter-bar { flex-direction: column; align-items: stretch; }
}