/* ============================================================
   CKD Diagnosis System — Professional & Premium Design System
   ============================================================ */

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.15);
    
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-border: #334155;
    
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    
    --text-main: #0f172a;
    --text-muted: #475569;
    --text-light: #94a3b8;
    
    --success: #10b981;
    --success-bg: #ecfdf5;
    --success-border: #a7f3d0;
    
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --warning-border: #fde68a;
    
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --danger-border: #fecaca;
    
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --sidebar-width: 280px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base resets */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font);
    background-color: var(--light-bg);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar Layout */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--dark) 0%, #1e1b4b 100%);
    border-right: 1px solid var(--dark-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    color: #fff;
    padding: 1.5rem;
}

.sidebar-header {
    margin-bottom: 2.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-mark {
    background: rgba(255, 255, 255, 0.08);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.logo-accent {
    color: var(--primary);
    background: linear-gradient(135deg, #a5b4fc 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.nav-section-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    color: #94a3b8;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(4px);
}

.nav-link.active {
    color: #ffffff;
    background: var(--primary);
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.4);
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-footer {
    border-top: 1px solid var(--dark-border);
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #818cf8 0%, #4f46e5 100%);
    color: white;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: #f1f5f9;
}

.user-role {
    font-size: 0.75rem;
    color: #94a3b8;
}

.logout-link {
    color: #ef4444;
}

.logout-link:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
}

/* Main Content Wrapper */
.main-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.topbar-greeting {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.greeting-text {
    font-size: 0.75rem;
    color: var(--text-light);
}

.greeting-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-main);
}

.content {
    padding: 2.5rem;
    flex: 1;
}

/* Flash Messages */
.flash-container {
    padding: 1rem 2.5rem 0;
}

.flash-container--centered {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: 100%;
    max-width: 450px;
}

.flash {
    background: white;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 0.75rem;
    border: 1px solid var(--border-color);
    animation: slideIn 0.3s ease-out;
    transition: var(--transition);
}

.flash-success {
    border-left: 4px solid var(--success);
    background: var(--success-bg);
}

.flash-error {
    border-left: 4px solid var(--danger);
    background: var(--danger-bg);
}

.flash-info {
    border-left: 4px solid var(--primary);
    background: #eef2ff;
}

.flash-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flash-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    flex: 1;
}

.flash-close {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-light);
    line-height: 1;
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card--blue .stat-icon-wrap { background: #eff6ff; }
.stat-card--purple .stat-icon-wrap { background: #f5f3ff; }
.stat-card--teal .stat-icon-wrap { background: #ecfeff; }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* Action Cards */
.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.action-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    transition: var(--transition);
}

.action-card--blue::before { background: var(--primary); }
.action-card--purple::before { background: #8b5cf6; }

.action-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.action-card:hover::before {
    width: 8px;
}

.action-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    background: var(--light-bg);
}

.action-card-body {
    flex: 1;
}

.action-card-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--text-main);
}

.action-card-body p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.action-arrow {
    color: var(--text-light);
    transition: var(--transition);
}

.action-card:hover .action-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

/* Tables */
.table-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    background: var(--light-bg);
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-main);
    vertical-align: middle;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: rgba(248, 250, 252, 0.8);
}

.name-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
}

.mini-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: 600;
}

.link-view {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: var(--transition);
}

.link-view:hover {
    color: var(--primary-hover);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge--stage {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid #cbd5e1;
}

.badge--neutral {
    background: #f1f5f9;
    color: #475569;
}

.badge--low { background: var(--success-bg); color: #065f46; border: 1px solid var(--success-border); }
.badge--moderate { background: var(--warning-bg); color: #92400e; border: 1px solid var(--warning-border); }
.badge--high { background: var(--danger-bg); color: #991b1b; border: 1px solid var(--danger-border); }
.badge--very-high { background: #7f1d1d; color: #fca5a5; border: 1px solid #991b1b; }

/* Forms & Page Layouts */
.form-page {
    max-width: 720px;
    margin: 0 auto;
}

.form-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.form-card-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.form-card-icon {
    background: var(--primary-glow);
    padding: 0.75rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-card-header h2 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.form-card-header p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.styled-form {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: var(--font);
    background-color: #ffffff;
    transition: var(--transition);
    color: var(--text-main);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    appearance: none;
}

.form-optional {
    font-weight: 400;
    color: var(--text-light);
    font-size: 0.8rem;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.form-error {
    color: var(--danger);
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

.info-banner {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
}

.info-banner-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-banner strong {
    font-size: 0.9rem;
    color: #1e3a8a;
    display: block;
    margin-bottom: 0.25rem;
}

.info-banner p {
    font-size: 0.85rem;
    color: #1e40af;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
    font-family: var(--font);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px 0 rgba(79, 70, 229, 0.3);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border-color);
}

.btn-ghost:hover {
    background: var(--light-bg);
    color: var(--text-main);
}

.btn-full {
    width: 100%;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1rem;
}

/* Empty State */
.empty-state {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.empty-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* Detail Page */
.detail-page {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.patient-avatar-lg {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: var(--shadow-md);
}

.detail-card-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.detail-card-info h2 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.detail-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.detail-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--light-bg);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.detail-actions {
    display: flex;
    gap: 0.75rem;
}

/* Result Page */
.result-page {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.result-header-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.result-patient {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.risk-badge-lg {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.risk-badge-lg.badge--low { background: var(--success-bg); color: #065f46; border: 1px solid var(--success-border); }
.risk-badge-lg.badge--moderate { background: var(--warning-bg); color: #92400e; border: 1px solid var(--warning-border); }
.risk-badge-lg.badge--high { background: var(--danger-bg); color: #991b1b; border: 1px solid var(--danger-border); }
.risk-badge-lg.badge--very-high { background: #7f1d1d; color: #fca5a5; border: 1px solid #991b1b; }

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.result-card--highlight {
    background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
    border-color: #bfdbfe;
}

.result-card-top {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    width: 100%;
    justify-content: center;
}

.result-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-value {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.1;
}

.result-unit {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.recommendation-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.recommendation-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.recommendation-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
}

.recommendation-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.recommendation--low { border-left: 6px solid var(--success); }
.recommendation--moderate { border-left: 6px solid var(--warning); }
.recommendation--high { border-left: 6px solid var(--danger); }
.recommendation--very-high { border-left: 6px solid #7f1d1d; }

/* KDIGO Heatmap */
.heatmap-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    padding: 2rem;
}

.heatmap-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.heatmap-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
}

.heatmap-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.heatmap-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 4px;
    text-align: center;
}

.heatmap-table th {
    padding: 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.hm-row-header {
    text-align: right;
    font-weight: 600;
    color: var(--text-muted);
    width: 120px;
}

.hm-cell {
    padding: 1rem;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.hm-low { background: #d1fae5; color: #065f46; }
.hm-moderate { background: #fef3c7; color: #92400e; }
.hm-high { background: #fee2e2; color: #991b1b; }
.hm-very-high { background: #f87171; color: #7f1d1d; }

.hm-current {
    transform: scale(1.05);
    box-shadow: 0 0 0 3px #4f46e5, var(--shadow-lg);
    position: relative;
    z-index: 10;
}

.result-actions {
    display: flex;
    gap: 1rem;
}

/* Split-screen Auth Layout */
.auth-page {
    background-color: #f1f5f9;
}

.auth-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100vw;
}

.auth-left {
    flex: 1;
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    color: white;
}

.auth-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    background: #f8fafc;
}

.auth-branding {
    max-width: 460px;
}

.auth-logo-box {
    background: rgba(255, 255, 255, 0.08);
    width: 96px;
    height: 96px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-xl);
}

.auth-brand-title {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.auth-brand-title span {
    color: var(--primary);
    background: linear-gradient(135deg, #a5b4fc 0%, #818cf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-brand-desc {
    font-size: 1.15rem;
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

.auth-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: #e2e8f0;
}

.auth-feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.35rem;
    border-radius: var(--radius-sm);
}

.login-card {
    width: 100%;
    max-width: 440px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    padding: 3rem;
}

.login-header {
    margin-bottom: 2rem;
}

.login-header h2 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.5px;
    margin-bottom: 0.25rem;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    display: flex;
    align-items: center;
    pointer-events: none;
}

.form-input--icon {
    padding-left: 2.75rem;
}

.login-secure {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 1.5rem;
}

/* Responsive styles */
@media (max-width: 1024px) {
    .auth-wrapper {
        flex-direction: column;
    }
    .auth-left {
        padding: 3rem;
    }
    .auth-right {
        padding: 3rem 1.5rem;
    }
    .auth-logo-box {
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 0;
        padding: 0;
        overflow: hidden;
        border-right: none;
    }
    .main-wrapper {
        margin-left: 0;
    }
    .topbar {
        padding: 1rem 1.5rem;
    }
    .content {
        padding: 1.5rem;
    }
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

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

.form-section-title {
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.35rem;
    grid-column: span 2;
}

/* Secondary Button Styling */
.btn-secondary {
    background: var(--light-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-main);
    box-shadow: 0 4px 10px 0 rgba(0, 0, 0, 0.05);
}

.btn-secondary svg {
    stroke: var(--text-muted);
}

/* Professional Browser Print Layout Override */
@media print {
    /* Hide non-printable workspace elements */
    .sidebar,
    header,
    .top-bar,
    .result-actions,
    .btn,
    button,
    nav {
        display: none !important;
    }

    /* Reset core container styles for full width paper utilization */
    body, 
    .main-content, 
    .container, 
    main {
        background: #ffffff !important;
        color: #000000 !important;
        margin: 0 !important;
        padding: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-shadow: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        padding-top: 0 !important;
    }

    /* Style clinical sections and cards for high-contrast paper output */
    .result-header {
        margin-bottom: 1.5rem !important;
        border-bottom: 2px solid #000000 !important;
        padding-bottom: 1rem !important;
    }

    .result-grid,
    .table-card,
    .recommendation-card,
    .heatmap-card {
        border: 1px solid #cbd5e1 !important;
        background: #ffffff !important;
        box-shadow: none !important;
        margin-bottom: 1.5rem !important;
        padding: 1.5rem !important;
        page-break-inside: avoid !important;
    }

    .badge {
        border: 1.5px solid #000000 !important;
        background: transparent !important;
        color: #000000 !important;
        font-weight: bold !important;
    }

    /* Print matrix cells with distinct grayscale or light fills */
    .hm-cell {
        border: 1px solid #94a3b8 !important;
    }
    .hm-current {
        outline: 3px solid #000000 !important;
        font-weight: 900 !important;
        background-color: #f1f5f9 !important;
    }

    h1, h2, h3, h4, h5, h6 {
        color: #000000 !important;
    }

    p, span, td, th {
        color: #1e293b !important;
    }

    /* Prevent text elements splitting across pages */
    h1, h2, h3, .section-title {
        page-break-after: avoid !important;
    }

    tr {
        page-break-inside: avoid !important;
        page-break-after: auto !important;
    }
}