/* ==========================================================================
   SalesFlow Design System — Complete CSS
   Based on docs/DESIGN-SYSTEM.md
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* --- Primary Palette --- */
    --sf-primary: #2563EB;
    --sf-primary-light: #3B82F6;
    --sf-secondary: #10B981;
    --sf-accent: #F97316;
    --sf-bg: #F8FAFC;
    --sf-surface: #FFFFFF;
    --sf-text: #1E293B;
    --sf-text-secondary: #64748B;
    --sf-text-muted: #94A3B8;
    --sf-border: #E2E8F0;
    --sf-muted-bg: #F1F5F9;

    /* --- Status Colors --- */
    --sf-success: #10B981;
    --sf-warning: #F59E0B;
    --sf-danger: #EF4444;
    --sf-info: #3B82F6;

    /* --- Gradients --- */
    --sf-gradient: linear-gradient(135deg, #2563EB 0%, #10B981 100%);
    --sf-gradient-subtle: linear-gradient(135deg, #EFF6FF 0%, #ECFDF5 100%);

    /* --- Typography --- */
    --sf-font-heading: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --sf-font-body: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --sf-font-data: 'Inter Tight', 'Inter', -apple-system, sans-serif;

    /* --- Type Scale --- */
    --sf-text-display: 48px;
    --sf-text-h1: 36px;
    --sf-text-h2: 28px;
    --sf-text-h3: 22px;
    --sf-text-h4: 18px;
    --sf-text-body: 16px;
    --sf-text-body-sm: 14px;
    --sf-text-caption: 12px;
    --sf-text-metric: 32px;
    --sf-text-metric-sm: 24px;

    /* --- Spacing (8px base) --- */
    --sf-space-1: 4px;
    --sf-space-2: 8px;
    --sf-space-3: 12px;
    --sf-space-4: 16px;
    --sf-space-5: 20px;
    --sf-space-6: 24px;
    --sf-space-8: 32px;
    --sf-space-10: 40px;
    --sf-space-12: 48px;
    --sf-space-16: 64px;

    /* --- Border Radius --- */
    --sf-radius-sm: 4px;
    --sf-radius-md: 8px;
    --sf-radius-lg: 12px;
    --sf-radius-xl: 16px;
    --sf-radius-full: 9999px;

    /* --- Elevation (Box Shadows) --- */
    --sf-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --sf-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --sf-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --sf-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);

    /* --- Animation --- */
    --sf-transition-fast: 150ms ease-out;
    --sf-transition-normal: 250ms ease-out;
    --sf-transition-slow: 400ms ease-out;

    /* --- Font alias (shorthand for body font) --- */
    --sf-font: var(--sf-font-body);

    /* --- Layout --- */
    --sf-sidebar-width: 240px;
    --sf-sidebar-collapsed: 64px;
    --sf-topnav-height: 57px;
    --sf-max-width: 1600px;
}

/* ==========================================================================
   2. Dark Mode Tokens
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --sf-bg: #0F172A;
        --sf-surface: #1E293B;
        --sf-dark-elevated: #334155;
        --sf-text: #F1F5F9;
        --sf-text-secondary: #94A3B8;
        --sf-text-muted: #64748B;
        --sf-border: #334155;
        --sf-muted-bg: #334155;
        --sf-gradient-subtle: linear-gradient(135deg, #1E293B 0%, #1E293B 100%);
    }
}

[data-theme="dark"] {
    --sf-bg: #0F172A;
    --sf-surface: #1E293B;
    --sf-dark-elevated: #334155;
    --sf-text: #F1F5F9;
    --sf-text-secondary: #94A3B8;
    --sf-text-muted: #64748B;
    --sf-border: #334155;
    --sf-muted-bg: #334155;
    --sf-gradient-subtle: linear-gradient(135deg, #1E293B 0%, #1E293B 100%);
    --sf-shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --sf-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -2px rgba(0,0,0,0.2);
    --sf-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.35), 0 4px 6px -4px rgba(0,0,0,0.2);
    --sf-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.4), 0 8px 10px -6px rgba(0,0,0,0.25);
}

/* Dark mode elevated surface */
[data-theme="dark"] .sf-card,
[data-theme="dark"] .sf-sidebar,
[data-theme="dark"] .sf-topnav,
[data-theme="dark"] .sf-bottomnav,
[data-theme="dark"] .sf-auth__card {
    background: var(--sf-surface);
}

[data-theme="dark"] .sf-pipeline__card,
[data-theme="dark"] .sf-table th,
[data-theme="dark"] select.sf-input,
[data-theme="dark"] .sf-input {
    background: var(--sf-surface);
    color: var(--sf-text);
}

/* ==========================================================================
   3. Reset & Base
   ========================================================================== */

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

body {
    font-family: var(--sf-font-body);
    font-size: var(--sf-text-body);
    background: var(--sf-bg);
    color: var(--sf-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--sf-primary);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* ==========================================================================
   4. Typography Utility Classes
   ========================================================================== */

.sf-display {
    font-family: var(--sf-font-heading);
    font-size: var(--sf-text-display);
    font-weight: 700;
    line-height: 1.1;
}

h1, .sf-h1 {
    font-family: var(--sf-font-heading);
    font-size: var(--sf-text-h1);
    font-weight: 700;
    line-height: 1.2;
}

h2, .sf-h2 {
    font-family: var(--sf-font-heading);
    font-size: var(--sf-text-h2);
    font-weight: 600;
    line-height: 1.3;
}

h3, .sf-h3 {
    font-family: var(--sf-font-heading);
    font-size: var(--sf-text-h3);
    font-weight: 600;
    line-height: 1.4;
}

h4, .sf-h4 {
    font-family: var(--sf-font-heading);
    font-size: var(--sf-text-h4);
    font-weight: 600;
    line-height: 1.4;
}

.sf-body-sm {
    font-size: var(--sf-text-body-sm);
    line-height: 1.5;
}

.sf-caption {
    font-size: var(--sf-text-caption);
    font-weight: 500;
    line-height: 1.4;
}

.sf-metric {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-metric);
    font-weight: 600;
    line-height: 1.1;
}

.sf-metric-sm {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-metric-sm);
    font-weight: 600;
    line-height: 1.2;
}

.sf-text-muted {
    color: var(--sf-text-muted);
}

.sf-text-secondary {
    color: var(--sf-text-secondary);
}

/* ==========================================================================
   5. Layout
   ========================================================================== */

.sf-container {
    max-width: var(--sf-max-width);
    margin: 0 auto;
    padding: 0 var(--sf-space-6);
}

.sf-app {
    display: flex;
    min-height: 100vh;
}

.sf-main {
    flex: 1;
    margin-left: var(--sf-sidebar-width);
    padding: 0 var(--sf-space-8) var(--sf-space-8);
    transition: margin-left var(--sf-transition-normal);
    min-width: 0;
}

.sf-sidebar[data-state="collapsed"] ~ .sf-main {
    margin-left: var(--sf-sidebar-collapsed);
}

.sf-main__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-5) 0;
    margin-bottom: var(--sf-space-2);
    border-bottom: 1px solid var(--sf-border);
}

.sf-main__header h1 {
    font-size: var(--sf-text-h2);
    font-weight: 700;
}

/* Grid System */
.sf-grid {
    display: grid;
    gap: var(--sf-space-6);
}

.sf-grid--2 { grid-template-columns: repeat(2, 1fr); }
.sf-grid--3 { grid-template-columns: repeat(3, 1fr); }
.sf-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Section */
.sf-section {
    padding: var(--sf-space-16) var(--sf-space-6);
}

.sf-section__title {
    font-size: var(--sf-text-h2);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--sf-space-10);
}

/* ==========================================================================
   6. sf-card — Dashboard Cards
   ========================================================================== */

.sf-card {
    background: var(--sf-surface);
    border-radius: var(--sf-radius-lg);
    padding: var(--sf-space-6);
    box-shadow: var(--sf-shadow-sm);
    border: 1px solid var(--sf-border);
    transition: box-shadow var(--sf-transition-fast);
}

.sf-card:hover {
    box-shadow: var(--sf-shadow-md);
}

.sf-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sf-space-4);
}

.sf-card__header h4,
.sf-card__title {
    font-size: var(--sf-text-h4);
    font-weight: 600;
}

.sf-card__header a {
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
    color: var(--sf-primary);
}

.sf-card__label {
    font-size: var(--sf-text-caption);
    font-weight: 500;
    color: var(--sf-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: var(--sf-space-1);
}

.sf-card__metric {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-metric);
    font-weight: 600;
    line-height: 1.1;
}

.sf-card__trend-up {
    color: var(--sf-success);
    font-size: var(--sf-text-body-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--sf-space-1);
}

.sf-card__trend-down {
    color: var(--sf-danger);
    font-size: var(--sf-text-body-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--sf-space-1);
}

.sf-card--metric {
    text-align: center;
    padding: var(--sf-space-5);
}

/* ==========================================================================
   7. sf-btn — Buttons
   ========================================================================== */

.sf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sf-space-2);
    padding: 10px 20px;
    border: none;
    border-radius: var(--sf-radius-md);
    font-family: var(--sf-font-body);
    font-size: var(--sf-text-body-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--sf-transition-fast);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

.sf-btn:hover {
    text-decoration: none;
}

.sf-btn:disabled,
.sf-btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Variants */
.sf-btn--primary {
    background: var(--sf-primary);
    color: #fff;
}
.sf-btn--primary:hover {
    background: var(--sf-primary-light);
}

.sf-btn--secondary {
    background: var(--sf-secondary);
    color: #fff;
}
.sf-btn--secondary:hover {
    background: #0ea472;
}

.sf-btn--accent {
    background: var(--sf-accent);
    color: #fff;
}
.sf-btn--accent:hover {
    background: #ea6c0b;
}

.sf-btn--danger {
    background: var(--sf-danger);
    color: #fff;
}
.sf-btn--danger:hover {
    background: #dc2626;
}

.sf-btn--outline {
    background: transparent;
    color: var(--sf-primary);
    border: 1px solid var(--sf-primary);
}
.sf-btn--outline:hover {
    background: var(--sf-primary);
    color: #fff;
}

.sf-btn--ghost {
    background: transparent;
    color: var(--sf-text-secondary);
}
.sf-btn--ghost:hover {
    background: var(--sf-muted-bg);
    color: var(--sf-text);
}

/* Sizes */
.sf-btn--sm {
    padding: 6px 14px;
    font-size: 13px;
}

.sf-btn--lg {
    padding: 14px 28px;
    font-size: var(--sf-text-body);
}

.sf-btn--full {
    width: 100%;
}

/* Icon-only button */
.sf-btn--icon {
    padding: 8px;
    border-radius: var(--sf-radius-md);
}

/* ==========================================================================
   8. sf-input — Form Inputs
   ========================================================================== */

.sf-input {
    width: 100%;
    padding: 10px var(--sf-space-3);
    font-size: var(--sf-text-body-sm);
    font-family: var(--sf-font-body);
    color: var(--sf-text);
    background: var(--sf-surface);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-radius-md);
    transition: border-color var(--sf-transition-fast), box-shadow var(--sf-transition-fast);
    line-height: 1.5;
}

.sf-input:focus {
    outline: none;
    border-color: var(--sf-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.sf-input::placeholder {
    color: var(--sf-text-muted);
}

.sf-input--error {
    border-color: var(--sf-danger);
}

.sf-input--error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Select */
select.sf-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    cursor: pointer;
}

/* Textarea */
textarea.sf-input {
    resize: vertical;
    min-height: 80px;
}

/* Form group */
.sf-form-group {
    margin-bottom: var(--sf-space-4);
}

.sf-label {
    display: block;
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
    margin-bottom: var(--sf-space-1);
    color: var(--sf-text);
}

.sf-form-hint {
    font-size: var(--sf-text-caption);
    color: var(--sf-text-muted);
    margin-top: var(--sf-space-1);
}

.sf-form-error {
    font-size: var(--sf-text-caption);
    color: var(--sf-danger);
    margin-top: var(--sf-space-1);
}

/* Checkbox / Radio */
.sf-checkbox {
    display: inline-flex;
    align-items: center;
    gap: var(--sf-space-2);
    font-size: var(--sf-text-body-sm);
    cursor: pointer;
}

.sf-checkbox input[type="checkbox"],
.sf-checkbox input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--sf-primary);
    cursor: pointer;
}

/* ==========================================================================
   9. sf-badge — Status Badges
   ========================================================================== */

.sf-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sf-space-1);
    padding: 2px 10px;
    font-size: var(--sf-text-caption);
    font-weight: 600;
    border-radius: var(--sf-radius-full);
    background: var(--sf-muted-bg);
    color: var(--sf-text-secondary);
    text-transform: capitalize;
    white-space: nowrap;
    line-height: 1.6;
}

.sf-badge--success {
    background: #ECFDF5;
    color: #065F46;
}

.sf-badge--warning {
    background: #FFFBEB;
    color: #92400E;
}

.sf-badge--danger {
    background: #FEF2F2;
    color: #991B1B;
}

.sf-badge--info {
    background: #EFF6FF;
    color: #1E40AF;
}

.sf-badge--primary {
    background: #EFF6FF;
    color: var(--sf-primary);
}

.sf-badge--accent {
    background: #FFF7ED;
    color: #9A3412;
}

/* Dark mode badge overrides */
[data-theme="dark"] .sf-badge--success { background: #064E3B; color: #6EE7B7; }
[data-theme="dark"] .sf-badge--warning { background: #78350F; color: #FCD34D; }
[data-theme="dark"] .sf-badge--danger  { background: #7F1D1D; color: #FCA5A5; }
[data-theme="dark"] .sf-badge--info    { background: #1E3A5F; color: #93C5FD; }
[data-theme="dark"] .sf-badge--primary { background: #1E3A5F; color: #93C5FD; }
[data-theme="dark"] .sf-badge--accent  { background: #7C2D12; color: #FDBA74; }
[data-theme="dark"] .sf-badge          { background: #334155; color: #94A3B8; }

/* Badge sizes */
.sf-badge--lg {
    padding: 4px 14px;
    font-size: var(--sf-text-body-sm);
}

/* Dot indicator inside badge */
.sf-badge__dot {
    width: 6px;
    height: 6px;
    border-radius: var(--sf-radius-full);
    background: currentColor;
    flex-shrink: 0;
}

/* ==========================================================================
   10. sf-table — Data Tables
   ========================================================================== */

.sf-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--sf-text-body-sm);
}

.sf-table th {
    position: sticky;
    top: 0;
    background: var(--sf-muted-bg);
    padding: var(--sf-space-3) var(--sf-space-4);
    text-align: left;
    font-weight: 600;
    font-size: var(--sf-text-caption);
    color: var(--sf-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--sf-border);
    white-space: nowrap;
    cursor: default;
    user-select: none;
}

.sf-table th[data-sort] {
    cursor: pointer;
}

.sf-table th[data-sort]:hover {
    color: var(--sf-text);
}

.sf-table th[data-sort]::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    opacity: 0.3;
}

.sf-table th[data-sort="asc"]::after {
    border-top: none;
    border-bottom: 4px solid currentColor;
    opacity: 1;
}

.sf-table th[data-sort="desc"]::after {
    opacity: 1;
}

.sf-table td {
    padding: var(--sf-space-3) var(--sf-space-4);
    border-bottom: 1px solid var(--sf-border);
    vertical-align: middle;
}

.sf-table tbody tr:hover {
    background: var(--sf-muted-bg);
}

/* Alternating rows */
.sf-table--striped tbody tr:nth-child(even) {
    background: rgba(241, 245, 249, 0.5);
}

[data-theme="dark"] .sf-table--striped tbody tr:nth-child(even) {
    background: rgba(51, 65, 85, 0.3);
}

/* Metric cells — right aligned, tabular figures */
.sf-table__cell--metric {
    text-align: right;
    font-family: var(--sf-font-data);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

/* Inline status badge in table */
.sf-table__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sf-space-1);
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--sf-radius-full);
    text-transform: capitalize;
}

.sf-table__badge--won    { background: #ECFDF5; color: #065F46; }
.sf-table__badge--lost   { background: #FEF2F2; color: #991B1B; }
.sf-table__badge--pending { background: #FFFBEB; color: #92400E; }
.sf-table__badge--active  { background: #EFF6FF; color: #1E40AF; }

/* Compact table variant */
.sf-table--compact td,
.sf-table--compact th {
    padding: var(--sf-space-2) var(--sf-space-3);
}

/* ==========================================================================
   11. sf-nav — Left Sidebar Navigation
   ========================================================================== */

.sf-nav {
    width: var(--sf-sidebar-width);
    background: var(--sf-surface);
    border-right: 1px solid var(--sf-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width var(--sf-transition-normal);
    overflow: hidden;
}

/* Collapsed state */
.sf-nav[data-state="collapsed"] {
    width: var(--sf-sidebar-collapsed);
}

.sf-nav[data-state="collapsed"] .sf-nav__label,
.sf-nav[data-state="collapsed"] .sf-nav__brand-text,
.sf-nav[data-state="collapsed"] .sf-nav__section-title,
.sf-nav[data-state="collapsed"] .sf-nav__user-name {
    display: none;
}

.sf-nav[data-state="collapsed"] .sf-nav__toggle svg {
    transform: rotate(180deg);
}

/* Org switcher / brand at top */
.sf-nav__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-4);
    border-bottom: 1px solid var(--sf-border);
    min-height: var(--sf-topnav-height);
}

.sf-nav__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--sf-primary);
    font-weight: 700;
    font-size: var(--sf-text-h4);
    white-space: nowrap;
}

.sf-nav__brand:hover {
    text-decoration: none;
}

.sf-nav__logo {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.sf-nav__toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sf-space-1);
    color: var(--sf-text-muted);
    border-radius: var(--sf-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sf-nav__toggle:hover {
    color: var(--sf-text);
    background: var(--sf-muted-bg);
}

.sf-nav__toggle svg {
    width: 18px;
    height: 18px;
    transition: transform var(--sf-transition-normal);
}

/* Org switcher dropdown */
.sf-nav__org-switcher {
    display: flex;
    align-items: center;
    gap: var(--sf-space-3);
    padding: var(--sf-space-3) var(--sf-space-4);
    border-bottom: 1px solid var(--sf-border);
    cursor: pointer;
    white-space: nowrap;
}

.sf-nav__org-avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--sf-radius-md);
    background: var(--sf-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
}

/* Nav items list */
.sf-nav__items {
    flex: 1;
    padding: var(--sf-space-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow-y: auto;
}

/* Section headers within nav */
.sf-nav__section {
    margin-top: var(--sf-space-4);
}

.sf-nav__section:first-child {
    margin-top: 0;
}

.sf-nav__section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--sf-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: var(--sf-space-2) var(--sf-space-3);
    white-space: nowrap;
}

/* Individual nav item */
.sf-nav__item {
    display: flex;
    align-items: center;
    gap: var(--sf-space-3);
    padding: 10px var(--sf-space-3);
    border-radius: var(--sf-radius-md);
    color: var(--sf-text-secondary);
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--sf-transition-fast);
}

.sf-nav__item:hover {
    background: var(--sf-muted-bg);
    color: var(--sf-text);
    text-decoration: none;
}

.sf-nav__item--active {
    background: rgba(37, 99, 235, 0.08);
    color: var(--sf-primary);
    font-weight: 600;
}

.sf-nav__item--active:hover {
    background: rgba(37, 99, 235, 0.12);
    color: var(--sf-primary);
}

.sf-nav__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Nav bottom section */
.sf-nav__bottom {
    padding: var(--sf-space-2);
    border-top: 1px solid var(--sf-border);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sf-nav__user {
    display: flex;
    align-items: center;
    gap: var(--sf-space-3);
    padding: 10px var(--sf-space-3);
    white-space: nowrap;
}

.sf-nav__avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--sf-radius-full);
    background: var(--sf-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
    text-transform: uppercase;
}

/* ==========================================================================
   12. sf-pipeline — Lead Pipeline (Kanban)
   ========================================================================== */

.sf-pipeline {
    display: flex;
    gap: var(--sf-space-4);
    overflow-x: auto;
    padding-bottom: var(--sf-space-4);
    -webkit-overflow-scrolling: touch;
}

.sf-pipeline::-webkit-scrollbar {
    height: 6px;
}

.sf-pipeline::-webkit-scrollbar-track {
    background: var(--sf-muted-bg);
    border-radius: 3px;
}

.sf-pipeline::-webkit-scrollbar-thumb {
    background: var(--sf-border);
    border-radius: 3px;
}

.sf-pipeline__column {
    min-width: 280px;
    max-width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: var(--sf-space-3);
}

.sf-pipeline__column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-3) var(--sf-space-4);
    background: var(--sf-muted-bg);
    border-radius: var(--sf-radius-md);
    font-size: var(--sf-text-body-sm);
    font-weight: 600;
}

.sf-pipeline__count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: var(--sf-radius-full);
    background: var(--sf-surface);
    font-size: 11px;
    font-weight: 700;
    color: var(--sf-text-secondary);
}

.sf-pipeline__cards {
    display: flex;
    flex-direction: column;
    gap: var(--sf-space-2);
    min-height: 100px;
}

.sf-pipeline__card {
    background: var(--sf-surface);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-radius-md);
    padding: var(--sf-space-3) var(--sf-space-4);
    cursor: grab;
    transition: box-shadow var(--sf-transition-fast), transform var(--sf-transition-fast);
}

.sf-pipeline__card:hover {
    box-shadow: var(--sf-shadow-md);
}

.sf-pipeline__card:active {
    cursor: grabbing;
    transform: rotate(2deg);
    box-shadow: var(--sf-shadow-lg);
}

.sf-pipeline__card-name {
    font-size: var(--sf-text-body-sm);
    font-weight: 600;
    margin-bottom: var(--sf-space-1);
}

.sf-pipeline__card-source {
    font-size: var(--sf-text-caption);
    color: var(--sf-text-muted);
}

.sf-pipeline__card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--sf-space-2);
}

.sf-pipeline__score {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-caption);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 20px;
    padding: 0 6px;
    border-radius: var(--sf-radius-full);
    color: #fff;
}

.sf-pipeline__score--high {
    background: var(--sf-success);
}

.sf-pipeline__score--mid {
    background: var(--sf-warning);
}

.sf-pipeline__score--low {
    background: var(--sf-danger);
}

.sf-pipeline__card-company {
    font-size: var(--sf-text-caption);
    color: var(--sf-text-secondary);
    margin-bottom: var(--sf-space-1);
}

.sf-pipeline__card-meta {
    font-size: var(--sf-text-caption);
    color: var(--sf-text-muted);
    margin-bottom: var(--sf-space-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sf-pipeline__card-rep {
    display: inline-flex;
    align-items: center;
}

.sf-pipeline__card-rep-icon {
    width: 16px;
    height: 16px;
    color: var(--sf-text-muted);
}

.sf-pipeline__card--dragging {
    opacity: 0.4;
    transform: rotate(2deg);
    box-shadow: var(--sf-shadow-lg);
}

.sf-pipeline__cards--dragover {
    background: var(--sf-gradient-subtle);
    border: 2px dashed var(--sf-primary);
    border-radius: var(--sf-radius-md);
    min-height: 120px;
}

.sf-pipeline__empty {
    font-size: var(--sf-text-caption);
    color: var(--sf-text-muted);
    text-align: center;
    padding: var(--sf-space-6) var(--sf-space-4);
}

.sf-pipeline__column-stats {
    display: flex;
    align-items: center;
    gap: var(--sf-space-2);
}

.sf-pipeline__column-value {
    font-size: var(--sf-text-caption);
    font-weight: 600;
    color: var(--sf-success);
}

.sf-pipeline__card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sf-space-2);
    margin-bottom: var(--sf-space-1);
}

.sf-pipeline__card-top .sf-pipeline__card-name {
    margin-bottom: 0;
}

.sf-pipeline__card-deal {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-body-sm);
    font-weight: 600;
    color: var(--sf-success);
    margin-bottom: var(--sf-space-1);
}

.sf-pipeline__card-rep-name {
    font-size: var(--sf-text-caption);
    color: var(--sf-text-secondary);
    margin-left: 2px;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sf-pipeline__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-3) var(--sf-space-4);
    margin-top: var(--sf-space-3);
    background: var(--sf-muted-bg);
    border-radius: var(--sf-radius-md);
    font-size: var(--sf-text-body-sm);
    color: var(--sf-text-secondary);
    font-weight: 500;
}

/* Filter Bar */
.sf-filter-bar {
    display: flex;
    gap: var(--sf-space-3);
    align-items: center;
    margin-bottom: var(--sf-space-5);
    flex-wrap: wrap;
}

.sf-filter-bar__search {
    position: relative;
    flex: 1;
    min-width: 200px;
    max-width: 320px;
}

.sf-filter-bar__search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--sf-text-muted);
    pointer-events: none;
}

.sf-filter-bar__input {
    padding-left: 34px !important;
}

.sf-filter-bar__select {
    min-width: 140px;
}

/* ==========================================================================
   13. Call Management
   ========================================================================== */

.sf-call-card {
    background: var(--sf-surface);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-radius-lg);
    padding: var(--sf-space-4);
    transition: border-color var(--sf-transition-fast);
}

.sf-call-card--live {
    border-color: var(--sf-success);
    animation: sf-pulse-border 2s ease-in-out infinite;
}

@keyframes sf-pulse-border {
    0%, 100% { border-color: var(--sf-success); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.2); }
    50% { border-color: var(--sf-success); box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1); }
}

.sf-call-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sf-space-3);
}

.sf-call-card__caller {
    font-weight: 600;
    font-size: var(--sf-text-body-sm);
}

.sf-call-card__duration {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
    color: var(--sf-text-secondary);
    font-variant-numeric: tabular-nums;
}

.sf-call-card__status {
    display: inline-flex;
    align-items: center;
    gap: var(--sf-space-1);
    font-size: var(--sf-text-caption);
    font-weight: 600;
}

.sf-call-card__status--ringing { color: var(--sf-warning); }
.sf-call-card__status--connected { color: var(--sf-success); }
.sf-call-card__status--ended { color: var(--sf-text-muted); }

.sf-call-card__transcript {
    max-height: 200px;
    overflow-y: auto;
    font-size: var(--sf-text-body-sm);
    line-height: 1.6;
    padding: var(--sf-space-3);
    background: var(--sf-muted-bg);
    border-radius: var(--sf-radius-md);
    margin-top: var(--sf-space-3);
}

.sf-call-card__objection {
    display: inline;
    background: #FEF3C7;
    color: #92400E;
    padding: 1px 6px;
    border-radius: var(--sf-radius-sm);
    font-size: var(--sf-text-caption);
    font-weight: 600;
}

[data-theme="dark"] .sf-call-card__objection {
    background: #78350F;
    color: #FCD34D;
}

/* ==========================================================================
   14. Top Navigation
   ========================================================================== */

.sf-topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-4) var(--sf-space-6);
    background: var(--sf-surface);
    border-bottom: 1px solid var(--sf-border);
    min-height: var(--sf-topnav-height);
}

.sf-topnav__brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--sf-primary);
    text-decoration: none;
}

.sf-topnav__links {
    display: flex;
    align-items: center;
    gap: var(--sf-space-4);
}

.sf-topnav__links a {
    color: var(--sf-text-secondary);
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
}

.sf-topnav__links a:hover {
    color: var(--sf-text);
    text-decoration: none;
}

/* Mobile bottom nav */
.sf-bottomnav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--sf-surface);
    border-top: 1px solid var(--sf-border);
    z-index: 100;
    padding: var(--sf-space-1) 0;
    padding-bottom: env(safe-area-inset-bottom, 4px);
}

.sf-bottomnav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 0;
    color: var(--sf-text-muted);
    text-decoration: none;
    font-size: 10px;
    font-weight: 500;
    flex: 1;
    transition: color var(--sf-transition-fast);
}

.sf-bottomnav__item svg {
    width: 22px;
    height: 22px;
}

.sf-bottomnav__item--active {
    color: var(--sf-primary);
}

.sf-bottomnav__item:hover {
    color: var(--sf-text);
    text-decoration: none;
}

/* ==========================================================================
   15. Hero Section
   ========================================================================== */

.sf-hero {
    background: var(--sf-gradient-subtle);
    padding: 80px var(--sf-space-6);
    text-align: center;
}

.sf-hero__inner {
    max-width: 720px;
    margin: 0 auto;
}

.sf-hero__title {
    font-size: var(--sf-text-display);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--sf-space-4);
}

.sf-hero__subtitle {
    font-size: var(--sf-text-h4);
    color: var(--sf-text-secondary);
    margin-bottom: var(--sf-space-8);
    line-height: 1.6;
}

.sf-hero__actions {
    display: flex;
    gap: var(--sf-space-3);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   16. Auth Pages
   ========================================================================== */

.sf-auth {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--sf-topnav-height));
    padding: var(--sf-space-6);
    background: var(--sf-gradient-subtle);
}

.sf-auth__card {
    background: var(--sf-surface);
    border-radius: var(--sf-radius-xl);
    padding: var(--sf-space-10);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--sf-shadow-lg);
}

.sf-auth__title {
    font-size: var(--sf-text-h3);
    font-weight: 700;
    margin-bottom: var(--sf-space-6);
    text-align: center;
}

.sf-auth__footer {
    text-align: center;
    margin-top: var(--sf-space-5);
    font-size: var(--sf-text-body-sm);
    color: var(--sf-text-secondary);
}

/* ==========================================================================
   17. Alerts & Notifications
   ========================================================================== */

.sf-alert {
    padding: var(--sf-space-3) var(--sf-space-4);
    border-radius: var(--sf-radius-md);
    font-size: var(--sf-text-body-sm);
    margin-bottom: var(--sf-space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--sf-space-3);
}

.sf-alert--success {
    background: #ECFDF5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.sf-alert--warning {
    background: #FFFBEB;
    color: #92400E;
    border: 1px solid #FDE68A;
}

.sf-alert--danger {
    background: #FEF2F2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

.sf-alert--info {
    background: #EFF6FF;
    color: #1E40AF;
    border: 1px solid #BFDBFE;
}

[data-theme="dark"] .sf-alert--success { background: #064E3B; color: #6EE7B7; border-color: #065F46; }
[data-theme="dark"] .sf-alert--warning { background: #78350F; color: #FCD34D; border-color: #92400E; }
[data-theme="dark"] .sf-alert--danger  { background: #7F1D1D; color: #FCA5A5; border-color: #991B1B; }
[data-theme="dark"] .sf-alert--info    { background: #1E3A5F; color: #93C5FD; border-color: #1E40AF; }

/* ==========================================================================
   18. Dashboard Utilities
   ========================================================================== */

.sf-dashboard {
    padding: var(--sf-space-8) var(--sf-space-6);
}

.sf-dashboard__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sf-space-6);
}

.sf-dashboard__header h1 {
    font-size: var(--sf-text-h2);
    font-weight: 700;
}

/* Status indicator dot */
.sf-status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--sf-radius-full);
    display: inline-block;
}

.sf-status-dot--online  { background: var(--sf-success); }
.sf-status-dot--away    { background: var(--sf-warning); }
.sf-status-dot--offline { background: var(--sf-text-muted); }
.sf-status-dot--busy    { background: var(--sf-danger); }

/* Stat highlight with count-up animation */
.sf-stat-value {
    font-family: var(--sf-font-data);
    font-size: var(--sf-text-metric);
    font-weight: 600;
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

/* Leaderboard row transition */
.sf-leaderboard-row {
    transition: transform var(--sf-transition-slow), background var(--sf-transition-fast);
}

/* Status change flash */
@keyframes sf-flash {
    0% { background: rgba(37, 99, 235, 0.15); }
    100% { background: transparent; }
}

.sf-flash {
    animation: sf-flash 1s ease-out;
}

/* ==========================================================================
   19. Modal / Dialog
   ========================================================================== */

.sf-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sf-space-6);
}

.sf-modal {
    background: var(--sf-surface);
    border-radius: var(--sf-radius-xl);
    box-shadow: var(--sf-shadow-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
}

.sf-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-5) var(--sf-space-6);
    border-bottom: 1px solid var(--sf-border);
}

.sf-modal__header h3 {
    font-size: var(--sf-text-h4);
    font-weight: 600;
}

.sf-modal__body {
    padding: var(--sf-space-6);
}

.sf-modal__footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--sf-space-3);
    padding: var(--sf-space-4) var(--sf-space-6);
    border-top: 1px solid var(--sf-border);
}

/* ==========================================================================
   20. Dropdown / Popover
   ========================================================================== */

.sf-dropdown {
    position: relative;
    display: inline-block;
}

.sf-dropdown__menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 180px;
    background: var(--sf-surface);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-radius-lg);
    box-shadow: var(--sf-shadow-lg);
    z-index: 150;
    padding: var(--sf-space-1) 0;
    display: none;
}

.sf-dropdown__menu--open {
    display: block;
}

.sf-dropdown__item {
    display: flex;
    align-items: center;
    gap: var(--sf-space-2);
    padding: var(--sf-space-2) var(--sf-space-4);
    font-size: var(--sf-text-body-sm);
    color: var(--sf-text);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--sf-transition-fast);
}

.sf-dropdown__item:hover {
    background: var(--sf-muted-bg);
    text-decoration: none;
}

.sf-dropdown__divider {
    height: 1px;
    background: var(--sf-border);
    margin: var(--sf-space-1) 0;
}

/* ==========================================================================
   21. Tooltip
   ========================================================================== */

[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--sf-space-1) var(--sf-space-2);
    background: var(--sf-text);
    color: var(--sf-surface);
    font-size: 11px;
    font-weight: 500;
    border-radius: var(--sf-radius-sm);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--sf-transition-fast);
    z-index: 999;
}

[data-tooltip]:hover::after {
    opacity: 1;
}

/* ==========================================================================
   22. Loading / Skeleton
   ========================================================================== */

.sf-skeleton {
    background: linear-gradient(90deg, var(--sf-muted-bg) 25%, var(--sf-border) 50%, var(--sf-muted-bg) 75%);
    background-size: 200% 100%;
    animation: sf-shimmer 1.5s infinite;
    border-radius: var(--sf-radius-md);
}

@keyframes sf-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.sf-skeleton--text {
    height: 16px;
    margin-bottom: var(--sf-space-2);
}

.sf-skeleton--metric {
    height: 36px;
    width: 100px;
}

.sf-skeleton--avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--sf-radius-full);
}

/* ==========================================================================
   23. Accessibility
   ========================================================================== */

/* Focus ring — 2px solid primary with 2px offset */
:focus-visible {
    outline: 2px solid var(--sf-primary);
    outline-offset: 2px;
}

/* Minimum 44px touch targets */
.sf-touch-target {
    min-width: 44px;
    min-height: 44px;
}

/* Screen reader only */
.sf-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip link */
.sf-skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--sf-primary);
    color: #fff;
    padding: var(--sf-space-2) var(--sf-space-4);
    z-index: 9999;
    transition: top var(--sf-transition-fast);
}

.sf-skip-link:focus {
    top: 0;
}

/* ==========================================================================
   24. Utility Classes
   ========================================================================== */

.sf-flex { display: flex; }
.sf-flex-col { display: flex; flex-direction: column; }
.sf-items-center { align-items: center; }
.sf-justify-between { justify-content: space-between; }
.sf-gap-1 { gap: var(--sf-space-1); }
.sf-gap-2 { gap: var(--sf-space-2); }
.sf-gap-3 { gap: var(--sf-space-3); }
.sf-gap-4 { gap: var(--sf-space-4); }
.sf-gap-6 { gap: var(--sf-space-6); }

.sf-p-0 { padding: 0; }
.sf-p-2 { padding: var(--sf-space-2); }
.sf-p-4 { padding: var(--sf-space-4); }
.sf-p-6 { padding: var(--sf-space-6); }

.sf-mt-2 { margin-top: var(--sf-space-2); }
.sf-mt-4 { margin-top: var(--sf-space-4); }
.sf-mt-6 { margin-top: var(--sf-space-6); }
.sf-mb-2 { margin-bottom: var(--sf-space-2); }
.sf-mb-4 { margin-bottom: var(--sf-space-4); }
.sf-mb-6 { margin-bottom: var(--sf-space-6); }

.sf-text-center { text-align: center; }
.sf-text-right { text-align: right; }

.sf-w-full { width: 100%; }
.sf-hidden { display: none; }
.sf-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ==========================================================================
   25. Responsive Breakpoints
   ========================================================================== */

/* Wide: > 1440px — 4-column grid, max-width container */
@media (min-width: 1441px) {
    .sf-container {
        max-width: var(--sf-max-width);
    }
}

/* Desktop: 1024px - 1440px — full sidebar, 3-column grid (default) */

/* Tablet: 768px - 1024px — collapsed sidebar, 2-column grid */
@media (max-width: 1024px) {
    .sf-grid--3 { grid-template-columns: repeat(2, 1fr); }
    .sf-grid--4 { grid-template-columns: repeat(2, 1fr); }

    .sf-nav {
        width: var(--sf-sidebar-collapsed);
    }

    .sf-nav .sf-nav__label,
    .sf-nav .sf-nav__brand-text,
    .sf-nav .sf-nav__section-title,
    .sf-nav .sf-nav__user-name {
        display: none;
    }

    .sf-nav .sf-nav__toggle {
        display: none;
    }

    .sf-main {
        margin-left: var(--sf-sidebar-collapsed);
    }

    /* Sidebar alias */
    .sf-sidebar {
        width: var(--sf-sidebar-collapsed);
    }
    .sf-sidebar .sf-sidebar__label,
    .sf-sidebar .sf-sidebar__brand-text { display: none; }
    .sf-sidebar .sf-sidebar__toggle { display: none; }
}

/* Mobile: < 768px — single column, bottom nav, stacked cards */
@media (max-width: 768px) {
    .sf-hero__title {
        font-size: var(--sf-text-h1);
    }

    .sf-hero {
        padding: var(--sf-space-10) var(--sf-space-4);
    }

    .sf-grid--2,
    .sf-grid--3,
    .sf-grid--4 {
        grid-template-columns: 1fr;
    }

    .sf-nav,
    .sf-sidebar {
        display: none;
    }

    .sf-main {
        margin-left: 0;
        padding: 0 var(--sf-space-4) 80px;
    }

    .sf-bottomnav {
        display: flex;
    }

    .sf-pipeline {
        flex-direction: column;
    }

    .sf-pipeline__column {
        min-width: 100%;
        max-width: 100%;
    }

    .sf-modal {
        max-width: 100%;
        margin: var(--sf-space-4);
        border-radius: var(--sf-radius-lg);
    }

    .sf-auth__card {
        padding: var(--sf-space-6);
    }

    .sf-dashboard {
        padding: var(--sf-space-4);
    }

    .sf-table {
        font-size: 13px;
    }

    .sf-table th,
    .sf-table td {
        padding: var(--sf-space-2) var(--sf-space-3);
    }
}

/* ==========================================================================
   26. Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .sf-skeleton {
        animation: none;
        background: var(--sf-muted-bg);
    }
}

/* ==========================================================================
   27. Backward-Compatible Aliases (sf-form__, sf-sidebar)
   Templates use these class names; they map to the canonical design tokens.
   ========================================================================== */

/* Form aliases — templates use sf-form__* alongside sf-input/sf-label */
.sf-form__group { margin-bottom: var(--sf-space-4); }
.sf-form__label {
    display: block;
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
    margin-bottom: var(--sf-space-1);
    color: var(--sf-text);
}
.sf-form__input {
    width: 100%;
    padding: 10px var(--sf-space-3);
    font-size: var(--sf-text-body-sm);
    font-family: var(--sf-font-body);
    color: var(--sf-text);
    background: var(--sf-surface);
    border: 1px solid var(--sf-border);
    border-radius: var(--sf-radius-md);
    transition: border-color var(--sf-transition-fast), box-shadow var(--sf-transition-fast);
    line-height: 1.5;
}
.sf-form__input:focus {
    outline: none;
    border-color: var(--sf-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.sf-form__input::placeholder { color: var(--sf-text-muted); }
.sf-form__input--sm { padding: 6px 10px; font-size: 13px; }
select.sf-form__input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    cursor: pointer;
}
.sf-form__textarea {
    resize: vertical;
    min-height: 80px;
    font-family: var(--sf-font-body);
}

/* Dark mode for form aliases */
[data-theme="dark"] .sf-form__input,
[data-theme="dark"] select.sf-form__input {
    background: var(--sf-surface);
    color: var(--sf-text);
}

/* Sidebar aliases — nav-sidebar.html uses sf-sidebar* */
.sf-sidebar {
    width: var(--sf-sidebar-width);
    background: var(--sf-surface);
    border-right: 1px solid var(--sf-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width var(--sf-transition-normal);
    overflow: hidden;
}
.sf-sidebar[data-state="collapsed"] { width: var(--sf-sidebar-collapsed); }
.sf-sidebar[data-state="collapsed"] .sf-sidebar__label,
.sf-sidebar[data-state="collapsed"] .sf-sidebar__brand-text { display: none; }
.sf-sidebar[data-state="collapsed"] .sf-sidebar__toggle svg { transform: rotate(180deg); }

.sf-sidebar__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sf-space-4);
    border-bottom: 1px solid var(--sf-border);
    min-height: var(--sf-topnav-height);
}
.sf-sidebar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--sf-primary);
    font-weight: 700;
    font-size: var(--sf-text-h4);
    white-space: nowrap;
}
.sf-sidebar__brand:hover { text-decoration: none; }
.sf-sidebar__logo { width: 24px; height: 24px; flex-shrink: 0; }

.sf-sidebar__toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sf-space-1);
    color: var(--sf-text-muted);
    border-radius: var(--sf-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}
.sf-sidebar__toggle:hover { color: var(--sf-text); background: var(--sf-muted-bg); }
.sf-sidebar__toggle svg {
    width: 18px;
    height: 18px;
    transition: transform var(--sf-transition-normal);
}

.sf-sidebar__nav {
    flex: 1;
    padding: var(--sf-space-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow-y: auto;
}

.sf-sidebar__item {
    display: flex;
    align-items: center;
    gap: var(--sf-space-3);
    padding: 10px var(--sf-space-3);
    border-radius: var(--sf-radius-md);
    color: var(--sf-text-secondary);
    font-size: var(--sf-text-body-sm);
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--sf-transition-fast);
}
.sf-sidebar__item:hover {
    background: var(--sf-muted-bg);
    color: var(--sf-text);
    text-decoration: none;
}
.sf-sidebar__item--active {
    background: rgba(37, 99, 235, 0.08);
    color: var(--sf-primary);
    font-weight: 600;
}
.sf-sidebar__item--active:hover {
    background: rgba(37, 99, 235, 0.12);
    color: var(--sf-primary);
}

.sf-sidebar__icon { width: 20px; height: 20px; flex-shrink: 0; }

.sf-sidebar__bottom {
    padding: var(--sf-space-2);
    border-top: 1px solid var(--sf-border);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sf-sidebar__user {
    display: flex;
    align-items: center;
    gap: var(--sf-space-3);
    padding: 10px var(--sf-space-3);
    white-space: nowrap;
}
.sf-sidebar__avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--sf-radius-full);
    background: var(--sf-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
    text-transform: uppercase;
}

/* Sidebar responsive — tablet collapses, mobile hides */
@media (max-width: 1024px) {
    .sf-sidebar {
        width: var(--sf-sidebar-collapsed);
    }
    .sf-sidebar .sf-sidebar__label,
    .sf-sidebar .sf-sidebar__brand-text { display: none; }
    .sf-sidebar .sf-sidebar__toggle { display: none; }
}

@media (max-width: 768px) {
    .sf-sidebar { display: none; }
}