/* iTimeCard — shared base styles and design tokens.
   Plain CSS, no framework. Page-specific styles live in /CSS/<page>.css */

:root {
    /* Surfaces */
    --background: #faf8ff;
    --surface: #faf8ff;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #f3f3fe;
    --surface-container: #ededf9;
    --surface-container-high: #e7e7f3;
    --surface-container-highest: #e1e2ed;
    --surface-dim: #d9d9e5;
    --inverse-surface: #2e3039;
    --inverse-on-surface: #f0f0fb;

    /* Primary */
    --primary: #004ac6;
    --primary-container: #2563eb;
    --on-primary: #ffffff;
    --on-primary-container: #eeefff;
    --primary-fixed: #dbe1ff;
    --primary-fixed-dim: #b4c5ff;

    /* Secondary (worked/active accents) */
    --secondary: #006c49;
    --secondary-container: #6cf8bb;
    --on-secondary-container: #00714d;
    --secondary-fixed-dim: #4edea3;

    /* Tertiary / status */
    --tertiary: #943700;

    /* Error */
    --error: #ba1a1a;
    --error-container: #ffdad6;
    --on-error: #ffffff;

    /* Text + lines */
    --on-surface: #191b23;
    --on-surface-variant: #434655;
    --outline: #737686;
    --outline-variant: #c3c6d7;

    /* Spacing scale */
    --space-xs: 4px;
    --space-base: 8px;
    --space-sm: 12px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 64px;

    /* Radius */
    --radius-lg: 4px;
    --radius-xl: 8px;
    --radius-full: 12px;

    --container-max: 1280px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 6px 18px rgba(16, 24, 40, 0.10);

    --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Dark theme (toggled by adding .dark to <html>) */
html.dark {
    --background: #111318;
    --surface: #111318;
    --surface-container-lowest: #0c0e13;
    --surface-container-low: #191b23;
    --surface-container: #1d1f27;
    --surface-container-high: #282a32;
    --surface-container-highest: #33353d;
    --surface-dim: #111318;
    --on-surface: #e2e2e9;
    --on-surface-variant: #c3c6d7;
    --outline: #8d909f;
    --outline-variant: #434655;
    --primary: #b4c5ff;
    --on-primary: #00306e;
    --primary-container: #003ea8;
    --on-primary-container: #dbe1ff;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    background: var(--background);
    color: var(--on-surface);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    margin: 0;
}

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

a:hover {
    text-decoration: underline;
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
    user-select: none;
}

/* ---------- Typography helpers ---------- */
.mono {
    font-family: var(--font-mono);
}

.label-caps {
    font-size: 12px;
    line-height: 16px;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-transform: uppercase;
}

.headline {
    font-size: 20px;
    line-height: 28px;
    font-weight: 600;
}

.display {
    font-size: 32px;
    line-height: 40px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.muted {
    color: var(--on-surface-variant);
}

.small {
    font-size: 14px;
}

/* ---------- Layout ---------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--space-md);
}

/* ---------- App header ---------- */
.app-header {
    height: 64px;
    background: var(--surface);
    border-bottom: 1px solid var(--outline-variant);
    position: sticky;
    top: 0;
    z-index: 40;
}

.app-header__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    height: 100%;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--primary);
    font-weight: 700;
    font-size: 20px;
}

.brand .material-symbols-outlined {
    font-variation-settings: 'FILL' 1;
    font-size: 28px;
}

/* User menu */
.user-menu {
    position: relative;
}

.user-menu__btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 4px 8px;
    border: 0;
    background: transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--on-surface);
}

.user-menu__btn:hover {
    background: var(--surface-container);
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--primary-fixed-dim);
    border: 1px solid var(--outline-variant);
}

.user-menu__dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 180px;
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    padding: 6px;
    display: none;
}

.user-menu__dropdown.open {
    display: block;
}

.user-menu__dropdown a,
.user-menu__dropdown button {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: 8px 12px;
    border: 0;
    background: transparent;
    border-radius: var(--radius-lg);
    color: var(--on-surface);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.user-menu__dropdown a:hover,
.user-menu__dropdown button:hover {
    background: var(--surface-container-low);
    text-decoration: none;
}

/* ---------- Top navigation ---------- */
.topnav {
    background: var(--surface-container-low);
    border-bottom: 1px solid var(--outline-variant);
    position: sticky;
    top: 64px;
    z-index: 30;
}

.topnav__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    overflow-x: auto;
    height: 48px;
    scrollbar-width: none;
}

.topnav__inner::-webkit-scrollbar {
    display: none;
}

.topnav a {
    font-size: 12px;
    line-height: 16px;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--on-surface-variant);
    white-space: nowrap;
    height: 100%;
    display: flex;
    align-items: center;
    border-bottom: 2px solid transparent;
}

.topnav a:hover {
    color: var(--primary);
    text-decoration: none;
}

.topnav a.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-base);
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: var(--radius-xl);
    background: var(--primary);
    color: var(--on-primary);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.05s ease;
}

.btn:hover {
    background: var(--primary-container);
}

.btn:active {
    transform: scale(0.98);
}

.btn--secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--outline-variant);
    cursor: pointer;
}

.btn--secondary:hover {
    background: var(--surface-container);
}

.btn--danger {
    background: var(--error);
    color: var(--on-error);
    cursor: pointer;
}

.btn--danger:hover {
    background: var(--error);
    filter: brightness(1.05);
}

.btn--icon {
    padding: 8px;
    border-radius: var(--radius-xl);
    background: var(--surface);
    border: 1px solid var(--outline-variant);
    color: var(--on-surface-variant);
    cursor: pointer;
}

.btn--icon:hover {
    background: var(--surface-container);
}

.btn--block {
    width: 100%;
}

/* ---------- Cards ---------- */
.card {
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
}

/* ---------- Forms ---------- */
.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.field>label {
    font-size: 12px;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--on-surface-variant);
}

input,
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    color: var(--on-surface);
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-xl);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 74, 198, 0.12);
}

.field__hint {
    font-size: 13px;
    color: var(--on-surface-variant);
    opacity: 0.8;
}

/* Toggle switch */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

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

.switch__track {
    position: absolute;
    inset: 0;
    background: var(--outline-variant);
    border-radius: 999px;
    transition: background 0.15s ease;
}

.switch__track::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.15s ease;
}

.switch input:checked+.switch__track {
    background: var(--primary);
}

.switch input:checked+.switch__track::after {
    transform: translateX(20px);
}

/* ---------- Modal ---------- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    z-index: 60;
}

.modal-backdrop.open {
    display: flex;
}

.modal {
    width: 100%;
    max-width: 560px;
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    padding: var(--space-md);
}

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

/* ---------- Misc helpers ---------- */
.row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.row--between {
    justify-content: space-between;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.page {
    max-width: var(--container-max);
    margin: 0 auto;
    width: 100%;
    padding: var(--space-md);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-lg);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--secondary-container);
    color: var(--on-secondary-container);
}

.hidden {
    display: none !important;
}

/* A few shared helpers (used instead of inline styles) */
.text-center {
    text-align: center;
}

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

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

.fw-bold {
    font-weight: 700;
}

.card--flush {
    padding: 0;
}

.brand .badge {
    margin-left: var(--space-base);
}