/* Base reset */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    color-scheme: light dark;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    background-color: var(--color-bg-app);
    color: var(--color-text-default);
    transition: background-color var(--transition-base) ease, color var(--transition-base) ease;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
    color: var(--color-accent);
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
    background: transparent;
}

button {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.65;
}

.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;
}

.hidden {
    display: none !important;
}

/* Layout primitives */
.app-shell {
    width: 100%;
    display: flex;
    min-height: 100vh;
    background-color: var(--color-bg-app);
}

.app-content {
    flex: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    padding: var(--space-400) 0;
}

.container {
    width: min(100% - var(--space-400), var(--container-max-width));
    margin: 0 auto;
    padding: 0 var(--space-200);
}

/* removed experimental gutters; compat.css is the blueprint source of truth */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-200);
    margin-bottom: var(--space-300);
    flex-wrap: wrap;
}

.page-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-strong);
}

.page-actions {
    display: flex;
    align-items: center;
    gap: var(--space-150);
    flex-wrap: wrap;
}

/* Toolbar */
.toolbar {
    width: var(--toolbar-width);
    padding: var(--space-400) var(--space-150);
    background: var(--color-bg-app);
    border-right: var(--border-width-hairline) solid var(--color-border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-300);
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 90;
}

/* Toolbar size reduction: 70% scale for buttons, logo, and icons */
.toolbar {
    width: calc(var(--toolbar-width) * 0.7);
    padding: calc(var(--space-400) * 0.7) calc(var(--space-150) * 0.7);
    gap: calc(var(--space-300) * 0.7);
}

.toolbar-section { gap: calc(var(--space-200) * 0.7); }
.toolbar-section-top { gap: calc(var(--space-250) * 0.7); }
.toolbar-section-bottom { padding-bottom: calc(var(--space-100) * 0.7); }

.toolbar-logo {
    width: 30px;
    height: 30px;
    font-size: 1.3rem;
}

.toolbar .toolbar-tool {
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: calc(var(--radius-200) * 0.7);
}

.toolbar .toolbar-icon {
    width: 15px;
    height: 15px;
}

.toolbar-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-200);
    width: 100%;
}

.toolbar-section-top {
    gap: var(--space-250);
}

.toolbar-section-bottom {
    padding-bottom: var(--space-100);
}

.toolbar-spacer {
    flex: 1;
}

.toolbar-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-round);
    background: var(--color-bg-app);
    border: var(--border-width-hairline) solid var(--color-border-subtle);
    color: var(--color-text-strong);
    font-size: 1.85rem;
    line-height: 1;
    text-decoration: none;
    transition: transform var(--transition-base) ease, border-color var(--transition-base) ease;
}

.toolbar-logo:hover,
.toolbar-logo:focus {
    text-decoration: none;
}

.toolbar-logo:hover {
    transform: rotate(180deg);
}

.toolbar-rule-horizontal {
    width: 100%;
    height: 1px;
    background: var(--color-border-subtle);
    display: block;
}

.toolbar-tool {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-200);
    border: var(--border-width-hairline) solid transparent;
    background: var(--color-bg-app);
    color: var(--color-text-default);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-base) ease, border-color var(--transition-base) ease, color var(--transition-base) ease;
}

.toolbar-tool:hover {
    background: var(--color-bg-muted);
    border-color: var(--color-border-subtle);
}

.toolbar-tool:focus-visible,
.user-menu-btn:focus-visible {
    outline: 2px solid var(--color-text-strong);
    outline-offset: 2px;
}

.toolbar-tool.active {
    background: var(--color-text-strong);
    color: var(--color-text-inverse);
    border-color: var(--color-text-strong);
}

/* Buttons & inputs */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-75);
    padding: 0 var(--space-200);
    min-height: 2.75rem;
    border-radius: var(--radius-200);
    border: var(--border-width-hairline) solid transparent;
    font-weight: var(--font-weight-medium);
    background: var(--color-bg-muted);
    color: var(--color-text-strong);
    transition: background-color var(--transition-fast) ease, border-color var(--transition-fast) ease, color var(--transition-fast) ease, box-shadow var(--transition-fast) ease;
}

.btn:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-subtle);
}

.btn.btn-primary {
    background: var(--color-accent);
    color: var(--color-accent-contrast);
    border-color: var(--color-accent);
}

.btn.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

.btn.btn-warning {
    background: var(--color-warning);
    color: var(--color-warning-contrast);
    border-color: var(--color-warning);
}

.btn.btn-warning:hover {
    background: color-mix(in srgb, var(--color-warning) 85%, var(--color-accent) 15%);
    border-color: color-mix(in srgb, var(--color-warning) 85%, var(--color-accent) 15%);
}

.btn.btn-secondary {
    background: var(--color-bg-muted);
    color: var(--color-text-strong);
    border-color: var(--color-border-subtle);
}

.btn.danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
    color: var(--color-danger-contrast);
}

.input,
.search-input,
.form-input,
.form-textarea,
input[type="search"],
input[type="text"],
input[type="email"],
input[type="password"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: var(--space-150) var(--space-200);
    border-radius: var(--radius-200);
    border: var(--border-width-hairline) solid var(--color-border-subtle);
    background: var(--color-bg-app);
    color: var(--color-text-default);
    transition: border-color var(--transition-fast) ease, box-shadow var(--transition-fast) ease;
}

.form-textarea,
textarea {
    min-height: 6rem;
    resize: vertical;
    line-height: var(--line-height-relaxed);
}

.search-input:focus,
.form-input:focus,
.form-textarea:focus,
.input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-75);
}

.form-label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--color-text-strong);
}

.help-text,
.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-subtle);
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-50);
    padding: var(--space-50) var(--space-150);
    border-radius: var(--radius-round);
    border: var(--border-width-hairline) solid var(--color-border-subtle);
    background: var(--color-pill-bg);
    color: var(--color-text-subtle);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast) ease, border-color var(--transition-fast) ease, color var(--transition-fast) ease;
}

.tag-pill.selected {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-accent-contrast);
}

/* Card primitive */
.card {
    display: block;
    background: var(--color-surface-card);
    border-radius: var(--radius-300);
    border: var(--border-width-hairline) solid var(--color-border-subtle);
    box-shadow: var(--shadow-100);
    color: inherit;
    text-decoration: none;
    transition: transform var(--transition-base) ease, box-shadow var(--transition-base) ease, border-color var(--transition-base) ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-200);
    border-color: var(--color-border-strong);
}

/* Modal primitive */
.modal-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay-strong);
    padding: var(--space-200);
    z-index: 1100;
}

.modal {
    background: var(--color-surface-modal);
    color: var(--color-text-default);
    border-radius: var(--radius-300);
    border: var(--border-width-hairline) solid var(--color-border-subtle);
    box-shadow: var(--shadow-200);
    width: min(640px, 95vw);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header,
.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-150);
    padding: var(--space-200) var(--space-250);
    border-bottom: var(--border-width-hairline) solid var(--color-border-subtle);
}

.modal-footer {
    border-top: var(--border-width-hairline) solid var(--color-border-subtle);
    border-bottom: 0;
    justify-content: flex-end;
}

.modal-body {
    padding: var(--space-250);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-200);
}

.modal-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-strong);
}

.modal-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-round);
    border: var(--border-width-hairline) solid transparent;
    background: transparent;
    color: var(--color-text-subtle);
    font-size: var(--font-size-lg);
}

.modal-close:hover {
    background: var(--color-bg-muted);
    color: var(--color-text-strong);
}

/* Alerts */
.alert {
    padding: var(--space-150) var(--space-200);
    border-radius: var(--radius-200);
    border: var(--border-width-hairline) solid transparent;
    display: flex;
    align-items: center;
    gap: var(--space-150);
    font-size: var(--font-size-sm);
}

.alert-success {
    background: color-mix(in srgb, var(--color-success) 12%, transparent);
    border-color: color-mix(in srgb, var(--color-success) 30%, transparent);
    color: var(--color-success);
}

.alert-danger {
    background: color-mix(in srgb, var(--color-danger) 15%, transparent);
    border-color: color-mix(in srgb, var(--color-danger) 30%, transparent);
    color: var(--color-danger);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--color-bg-muted);
    color: var(--color-text-subtle);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.table th,
.table td {
    padding: var(--space-150) var(--space-200);
    border-bottom: var(--border-width-hairline) solid var(--color-border-subtle);
    text-align: left;
}

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

/* Utilities */
.stack-vertical {
    display: flex;
    flex-direction: column;
    gap: var(--space-200);
}

.stack-horizontal {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-150);
    align-items: center;
}

.text-subtle {
    color: var(--color-text-subtle);
}

.text-danger {
    color: var(--color-danger);
}

.text-inverse {
    color: var(--color-text-inverse);
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-50);
    padding: var(--space-50) var(--space-150);
    border-radius: var(--radius-round);
    background: var(--color-pill-bg);
    border: var(--border-width-hairline) solid var(--color-border-subtle);
    font-size: var(--font-size-sm);
}