:root {
    --bg-dark: #0f1115;
    --bg-surface: #1a1d24;
    --bg-surface-hover: #232730;
    --text-primary: #f0f2f5;
    --text-secondary: #9ba1a6;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --green: #10b981;
    --border: #2e333d;
    --glow: rgba(59, 130, 246, 0.4);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    display: flex;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography & Colors */
.hl { color: var(--accent); }
.text-green { color: var(--green); }

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
}

.logo {
    display: flex;
    align-items: center;
    padding: 0 24px;
    margin-bottom: 40px;
    gap: 12px;
}

.logo-icon {
    font-size: 24px;
    filter: drop-shadow(0 0 8px var(--glow));
}

.logo h2 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

nav {
    display: flex;
    flex-direction: column;
    flex: 1;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

nav a:hover, nav a.active {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
}

.user-status {
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    background-color: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--green);
    animation: blink 2s infinite;
}

/* Main Content */
.content {
    flex: 1;
    padding: 40px 48px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: fadeInDown 0.6s ease;
}

header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.5px;
}

header p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Buttons */
.btn {
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.3);
}

.btn:active {
    transform: translateY(1px);
}

/* Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.metric-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
}

.metric-title {
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-value {
    font-size: 32px;
    font-weight: 600;
}

/* Table Section */
.patient-queue {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    flex: 1;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.section-header h3 {
    font-size: 16px;
    font-weight: 500;
}

.pulse {
    width: 6px;
    height: 6px;
    background-color: var(--accent);
    border-radius: 50%;
    animation: blink 1.5s infinite;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

tr {
    transition: background-color 0.2s ease;
}

tr:hover td {
    background-color: rgba(255,255,255,0.02);
}

/* Status Tags */
.tag {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.tag.pending { background-color: rgba(245, 158, 11, 0.1); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.2); }
.tag.verified { background-color: rgba(16, 185, 129, 0.1); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.2); }

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Loader */
.btn-loader {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading .btn-text { display: none; }
.loading .btn-loader { display: block; }