/* =====================================================================
   VERDANA HEALTH DESIGN SYSTEM
   Calm, trustworthy digital health & clinical design system.
   ===================================================================== */

:root {
    /* Colors */
    --primary-navy: #0F172A;
    --secondary-slate: #64748B;
    --tertiary-sage: #059669;
    --tertiary-sage-hover: #047857;
    --bg-page: #F8FAFC;
    --surface-default: #FFFFFF;
    --surface-subtle: #F1F5F9;
    --border-default: #E2E8F0;
    --border-slate: #CBD5E1;
    
    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --text-light: #94A3B8;

    /* Status Colors */
    --success: #22C55E;
    --success-bg: rgba(34, 197, 94, 0.08);
    --success-text: #16A34A;
    
    --warning: #EAB308;
    --warning-bg: rgba(234, 179, 8, 0.08);
    --warning-text: #CA8A04;
    
    --error: #EF4444;
    --error-bg: rgba(239, 68, 68, 0.08);
    --error-text: #DC2626;
    
    --info: #0EA5E9;
    --info-bg: rgba(14, 165, 233, 0.08);

    /* Typography */
    --font-headline: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Fira Code', monospace;

    /* Spacing Units */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Border Radii */
    --radius-sm: 4px;
    --radius-default: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Elevation Shadows */
    --elevation-sm: 0 1px 3px rgba(15, 23, 42, 0.03);
    --elevation-default: 0 2px 6px rgba(15, 23, 42, 0.05);
    --elevation-md: 0 4px 16px rgba(15, 23, 42, 0.07);
    --elevation-lg: 0 8px 32px rgba(15, 23, 42, 0.10);
}

/* Reset & Global Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.app-background {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at 10% 10%, rgba(5, 150, 105, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 90% 90%, rgba(15, 23, 42, 0.03) 0%, transparent 50%),
                var(--bg-page);
    pointer-events: none;
}

/* Typography Hierarchy */
.display-title {
    font-family: var(--font-headline);
    font-size: 40px;
    font-weight: 700;
    line-height: 1.15;
    color: var(--primary-navy);
}

h1, .sidebar-brand {
    font-family: var(--font-headline);
    font-size: 22px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-navy);
}

h2, .view-title {
    font-family: var(--font-headline);
    font-size: 24px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--primary-navy);
}

h3, .card-title {
    font-family: var(--font-headline);
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary-navy);
}

h4, .item-title {
    font-family: var(--font-headline);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.35;
    color: var(--primary-navy);
}

p, .body-text {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.body-lg {
    font-size: 18px;
    line-height: 1.6;
}

.body-sm {
    font-size: 14px;
    line-height: 1.5;
}

.caption {
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--text-muted);
}

.mono-num, .mono-text, pre, code {
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.6;
}

/* Layout Grid & Wrapper */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    min-width: 280px;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--surface-default);
    border-right: 1px solid var(--border-default);
    box-shadow: var(--elevation-md);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-default);
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-default);
    background: var(--primary-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    box-shadow: var(--elevation-sm);
}

.sidebar-brand {
    font-size: 18px;
    letter-spacing: -0.01em;
}

.sidebar-tagline {
    font-size: 12px;
    font-weight: 500;
    color: var(--tertiary-sage);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 10px 14px;
    border-radius: var(--radius-default);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-headline);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    text-align: left;
}

.nav-item:hover {
    color: var(--primary-navy);
    background: var(--bg-page);
}

.nav-item.active {
    color: #FFFFFF;
    background: var(--primary-navy);
    box-shadow: var(--elevation-sm);
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-default);
}

.stat-pills {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.stat-badge {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 13px;
    padding: 6px 12px;
    background: var(--bg-page);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    justify-content: space-between;
}

.stat-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}

.stat-dot.success { background-color: var(--success); }
.stat-dot.sage { background-color: var(--tertiary-sage); }

/* Main Content Workspace */
.main-workspace {
    flex: 1;
    padding: var(--space-xl) var(--space-xl) var(--space-3xl);
    max-width: 1400px;
    overflow-x: hidden;
}

.view-panel,
.tab-content,
.gen-form-panel {
    display: none;
}

.view-panel.active,
.tab-content.active,
.gen-form-panel.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.view-header {
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    background: var(--surface-default);
    border-radius: var(--radius-default);
}

.view-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Verdana Health Cards */
.card-default {
    background: var(--surface-default);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    box-shadow: none;
    padding: var(--space-lg);
}

.card-elevated {
    background: var(--surface-default);
    border: none;
    border-radius: var(--radius-default);
    box-shadow: var(--elevation-md);
    padding: var(--space-lg);
}

.card-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

/* Grid System */
.grid-layout {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: var(--space-lg);
}

@media (max-width: 1100px) {
    .dashboard-wrapper { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: static; }
    .grid-layout { grid-template-columns: 1fr; }
}

/* Buttons Component System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    border-radius: var(--radius-default);
    font-family: var(--font-body);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
    text-decoration: none;
}

/* Sizes */
.btn-sm {
    height: 32px;
    padding: 6px 14px;
    font-size: 14px;
}

.btn-md, .btn:not(.btn-sm):not(.btn-lg) {
    height: 42px;
    padding: 10px 22px;
    font-size: 14px;
}

.btn-lg {
    height: 48px;
    padding: 12px 28px;
    font-size: 16px;
}

.btn-full { width: 100%; }

/* Variants */
.btn-primary {
    background: var(--primary-navy);
    color: #FFFFFF;
}
.btn-primary:hover:not(:disabled) {
    background: #020617;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-navy);
    border: 1px solid var(--primary-navy);
}
.btn-secondary:hover:not(:disabled) {
    background: rgba(15, 23, 42, 0.04);
}

.btn-tertiary, .btn-sage {
    background: var(--tertiary-sage);
    color: #FFFFFF;
}
.btn-tertiary:hover:not(:disabled), .btn-sage:hover:not(:disabled) {
    background: var(--tertiary-sage-hover);
}

.btn-ghost {
    background: transparent;
    color: #475569;
}
.btn-ghost:hover:not(:disabled) {
    background: #F1F5F9;
}

.btn-destructive {
    background: var(--error);
    color: #FFFFFF;
}
.btn-destructive:hover:not(:disabled) {
    background: #DC2626;
}

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

/* Forms & Inputs Component System */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label, label {
    display: block;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-navy);
    margin-bottom: 6px;
}

.form-control,
input[type="text"],
input[type="number"],
select,
textarea {
    width: 100%;
    height: 42px;
    padding: 10px 14px;
    background: #FFFFFF;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    color: var(--primary-navy);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.5;
    outline: none;
    box-shadow: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea {
    height: auto;
}

.form-control:hover,
input[type="text"]:hover,
textarea:hover {
    border-color: var(--primary-navy);
}

.form-control:focus,
input[type="text"]:focus,
textarea:focus {
    border: 2px solid var(--primary-navy);
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.09);
    padding: 9px 13px;
}

.form-control.is-invalid,
.form-control.error {
    border: 2px solid var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.09);
}

.form-control:disabled {
    border-color: var(--border-default);
    background: #F1F5F9;
    cursor: not-allowed;
}

.helper-text {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.error-text {
    display: block;
    font-size: 12px;
    color: var(--error);
    margin-top: 4px;
}

/* Chips Component System */
.chip, .badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: default;
    border: none;
}

.chip {
    background: #F8FAFC;
    color: var(--primary-navy);
    border: 1px solid var(--border-default);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.chip:hover {
    background: #E2E8F0;
}

.chip.active, .chip-active {
    background: var(--primary-navy);
    color: #FFFFFF;
    border: none;
}

.chip-success, .badge-quality, .status-success {
    background: var(--success-bg);
    color: var(--success-text);
    border: none;
}

.chip-warning, .badge-formatting, .status-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
    border: none;
}

.chip-error, .badge-structure, .status-error {
    background: var(--error-bg);
    color: var(--error-text);
    border: none;
}

.dedup-pill.unique {
    background: var(--success-bg);
    color: var(--success-text);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dedup-pill.duplicate {
    background: var(--warning-bg);
    color: var(--warning-text);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tabs & Gen Mode Navigation */
.tabs-nav, .gen-mode-nav {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.tab-btn, .gen-mode-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 18px;
    border-radius: var(--radius-default);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-headline);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.tab-btn:hover, .gen-mode-btn:hover {
    color: var(--primary-navy);
    background: var(--bg-page);
}

.tab-btn.active, .gen-mode-btn.active {
    color: var(--primary-navy);
    background: var(--surface-default);
    box-shadow: var(--elevation-sm);
    border: 1px solid var(--border-default);
}

.tab-badge {
    background: var(--bg-page);
    color: var(--primary-navy);
    font-size: 12px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
}

.sage-badge {
    background: var(--success-bg);
    color: var(--success-text);
}

/* Lists Component System */
.directives-list, .patterns-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.filter-chips {
    display: flex;
    gap: 6px;
}

.item-card {
    background: #FFFFFF;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    padding: var(--space-md);
    transition: background-color 0.15s ease;
}

.item-card:hover {
    background-color: #F8FAFC;
}

.item-card.disabled {
    opacity: 0.55;
    background: #F1F5F9;
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.item-title-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.item-body p {
    font-size: 14px;
    color: var(--text-secondary);
}

.item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-sm);
    padding-top: var(--space-xs);
}

.action-btn {
    background: transparent;
    border: none;
    color: var(--error);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}

.action-btn:hover {
    text-decoration: underline;
}

/* Checkbox & Switch Component */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #CBD5E1;
    transition: 0.2s;
    border-radius: var(--radius-full);
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: #FFFFFF;
    transition: 0.2s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-navy);
}

input:checked + .slider:before {
    transform: translateX(16px);
}

/* Chat & Alerts */
.agent-chat-response {
    margin-top: var(--space-md);
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    background: rgba(5, 150, 105, 0.06);
    border: 1px solid rgba(5, 150, 105, 0.2);
    border-radius: var(--radius-default);
    padding: var(--space-md);
}

.agent-chat-response.hidden { display: none; }

.agent-avatar {
    font-size: 20px;
    background: rgba(5, 150, 105, 0.12);
    width: 36px; height: 36px;
    border-radius: var(--radius-default);
    display: flex; align-items: center; justify-content: center;
}

.agent-response-text {
    font-size: 14px;
    color: var(--primary-navy);
    white-space: pre-wrap;
}

.analysis-alert {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    background: var(--info-bg);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-default);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
}

.analysis-alert.hidden { display: none; }

.alert-icon { font-size: 20px; }
.alert-heading { font-size: 14px; font-weight: 600; color: var(--primary-navy); }
.alert-desc { font-size: 13px; color: var(--text-secondary); }

/* Metadata & Output Preview */
.metadata-card {
    border-radius: var(--radius-default);
    margin-bottom: var(--space-lg);
    padding: 0;
    overflow: hidden;
}

.metadata-card.hidden { display: none; }

.meta-header-strip {
    background: var(--primary-navy);
    color: #FFFFFF;
    padding: 8px 16px;
    font-family: var(--font-headline);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.meta-body {
    padding: var(--space-md);
}

.meta-item {
    margin-bottom: var(--space-sm);
}

.meta-label {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    display: block;
    margin-bottom: 2px;
}

.meta-title { font-size: 16px; color: var(--primary-navy); }
.meta-desc { font-size: 14px; color: var(--text-secondary); }

.meta-row {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-top: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-default);
    font-size: 13px;
}

.output-preview-container {
    background: #FFFFFF;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    padding: var(--space-lg);
    min-height: 400px;
    max-height: 650px;
    overflow-y: auto;
}

.output-preview-container pre {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--primary-navy);
    white-space: pre-wrap;
    word-break: break-word;
}

.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
    color: var(--text-muted);
}

.empty-icon { font-size: 32px; margin-bottom: var(--space-sm); }

.text-success {
    color: var(--success-text) !important;
}

/* Tooltips Component */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: max-content;
    max-width: 240px;
    background-color: var(--primary-navy);
    color: #F8FAFC;
    font-family: var(--font-body);
    font-size: 12px;
    line-height: 1.4;
    text-align: center;
    padding: 6px 12px;
    border-radius: var(--radius-default);
    position: absolute;
    z-index: 100;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 150ms ease-in-out;
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -6px;
    border-width: 6px;
    border-style: solid;
    border-color: var(--primary-navy) transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed; top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
    z-index: 100; opacity: 0; pointer-events: none; transition: opacity 0.2s ease;
}

.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal-content {
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    background: var(--surface-default);
    border-radius: var(--radius-md);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
}

.modal-title { font-family: var(--font-headline); font-size: 20px; font-weight: 600; color: var(--primary-navy); }
.modal-subtitle { font-size: 14px; color: var(--text-secondary); }
.modal-close { background: transparent; border: none; color: var(--text-muted); font-size: 24px; cursor: pointer; }
.modal-body {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-page);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-default);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
}
.modal-body pre { font-family: var(--font-mono); font-size: 14px; color: var(--primary-navy); white-space: pre-wrap; word-break: break-word; }
.modal-footer { display: flex; justify-content: flex-end; }