/* FCT Enumeration — offline-first enumerator PWA
   Design tokens follow design.md (monochromatic shadcn-style system). */

:root {
    --color-canvas: #f5f5f5;
    --color-paper: #ffffff;
    --color-surface-alt: #fafafa;
    --color-ink: #0a0a0a;
    --color-ink-soft: #171717;
    --color-mid-gray: #737373;
    --color-hairline: #e5e5e5;
    --color-ember: #e7000b;

    --font-geist: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    --radius-cards: 24px;
    --radius-buttons: 18px;
    --radius-inputs: 18px;
    --radius-badges: 18px;
    --radius-small: 6px;

    --shadow-subtle: 0 0 0 1px rgba(23,23,23,0.05), 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px -1px rgba(0,0,0,0.1);

    --spacing-8: 8px;
    --spacing-12: 12px;
    --spacing-16: 16px;
    --spacing-20: 20px;
    --spacing-24: 24px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-family: var(--font-geist);
    font-size: 14px;
    line-height: 1.43;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

/* ── App bar ─────────────────────────────────────────────── */
.appbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    padding-top: max(12px, env(safe-area-inset-top));
    background: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-hairline);
}
.appbar__back {
    border: none;
    background: transparent;
    color: var(--color-ink);
    font-size: 20px;
    cursor: pointer;
    padding: 0 4px;
}
.appbar__title {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.01em;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.appbar__actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ── Network badge ───────────────────────────────────────── */
.net-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-badges);
    background: var(--color-canvas);
    color: var(--color-mid-gray);
    font-size: 12px;
    font-weight: 500;
    border: 1px solid transparent;
}
.net-badge__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-mid-gray);
}
.net-badge--online .net-badge__dot { background: #16a34a; }
.net-badge--offline .net-badge__dot { background: var(--color-ember); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
    font-family: inherit;
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius-buttons);
    padding: 10px 16px;
    border: none;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn--primary {
    background: var(--color-ink);
    color: var(--color-surface-alt);
}
.btn--primary:active { background: var(--color-ink-soft); }
.btn--ghost {
    background: var(--color-canvas);
    color: var(--color-ink);
}
.btn--ghost:active { background: var(--color-hairline); }
.btn--outline {
    background: transparent;
    color: var(--color-ink);
    border: 1px solid var(--color-hairline);
}
.btn--danger {
    background: transparent;
    color: var(--color-ember);
    border: 1px solid var(--color-hairline);
}
.btn--block { width: 100%; }
.btn--sm { padding: 6px 12px; font-size: 13px; }
.btn--lg { padding: 14px 20px; font-size: 15px; }

/* ── Bottom tab bar ──────────────────────────────────────── */
.tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 20;
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: var(--color-surface-alt);
    border-top: 1px solid var(--color-hairline);
    padding-bottom: env(safe-area-inset-bottom);
}
.tabbar__tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 10px 0 8px;
    background: transparent;
    border: none;
    color: var(--color-mid-gray);
    font-family: inherit;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
}
.tabbar__tab.is-active { color: var(--color-ink); }
.tabbar__icon { font-size: 20px; line-height: 1; }
.tabbar__icon--fab {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-top: -22px;
    background: var(--color-ink);
    color: var(--color-surface-alt);
    border-radius: 18px;
    box-shadow: var(--shadow-subtle);
}
.tabbar__tab--fab { flex: 0 0 auto; width: 88px; }
.tabbar__tab--fab.is-active .tabbar__icon--fab { background: var(--color-ink-soft); }

/* ── Layout ──────────────────────────────────────────────── */
.app {
    max-width: 560px;
    margin: 0 auto;
    padding: 16px 16px calc(84px + env(safe-area-inset-bottom));
    min-height: 100vh;
}
.screen-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 60vh;
    color: var(--color-mid-gray);
}

/* ── Cards ──────────────────────────────────────────────── */
.card {
    background: var(--color-paper);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-cards);
    box-shadow: var(--shadow-subtle);
    padding: 20px;
    margin-bottom: 16px;
}
.card__title {
    margin: 0 0 12px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.card__sub {
    color: var(--color-mid-gray);
    font-size: 13px;
    margin: 0 0 12px;
}

/* ── Forms ──────────────────────────────────────────────── */
.field { margin-bottom: 16px; }
.field__label {
    display: block;
    color: var(--color-mid-gray);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 6px;
}
.field__label .req { color: var(--color-ember); }
.input, .select, .textarea {
    width: 100%;
    font-family: inherit;
    font-size: 14px;
    color: var(--color-ink);
    background: var(--color-canvas);
    border: 1px solid transparent;
    border-radius: var(--radius-inputs);
    padding: 12px 14px;
    outline: none;
}
.input:focus, .select:focus, .textarea:focus {
    border-color: var(--color-hairline);
    background: var(--color-paper);
}
.textarea { min-height: 72px; resize: vertical; }
.input::placeholder, .textarea::placeholder { color: var(--color-mid-gray); }
.field__help { font-size: 12px; color: var(--color-mid-gray); margin-top: 4px; }
.field-row { display: flex; gap: 12px; }
.field-row > .field { flex: 1; }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-badges);
    font-size: 12px;
    font-weight: 500;
}
.badge--neutral { background: var(--color-canvas); color: var(--color-ink-soft); }
.badge--solid { background: var(--color-ink-soft); color: var(--color-surface-alt); }
.badge--pending { background: #fff7e6; color: #92600a; }
.badge--synced { background: var(--color-ink-soft); color: var(--color-surface-alt); }
.badge--error { background: var(--color-ember); color: #fff; }

/* ── Stat blocks ────────────────────────────────────────── */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.stat {
    background: var(--color-paper);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-cards);
    padding: 16px;
    box-shadow: var(--shadow-subtle);
}
.stat__value {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--color-ink);
}
.stat__label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-mid-gray);
    margin-top: 2px;
}

/* ── Lists ──────────────────────────────────────────────── */
.list { list-style: none; margin: 0; padding: 0; }
.list-item {
    background: var(--color-paper);
    border: 1px solid var(--color-hairline);
    border-radius: 18px;
    padding: 14px 16px;
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.list-item__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}
.list-item__name { font-weight: 600; color: var(--color-ink); }
.list-item__meta { font-size: 12px; color: var(--color-mid-gray); }
.list-item__actions { display: flex; gap: 8px; margin-top: 6px; }

/* ── Toast ──────────────────────────────────────────────── */
.toast {
    position: fixed;
    left: 50%;
    bottom: calc(96px + env(safe-area-inset-bottom));
    transform: translateX(-50%);
    z-index: 50;
    background: var(--color-ink-soft);
    color: var(--color-surface-alt);
    padding: 10px 18px;
    border-radius: var(--radius-buttons);
    font-size: 13px;
    box-shadow: var(--shadow-subtle);
    max-width: 90%;
    text-align: center;
}
.toast--error { background: var(--color-ember); }

/* ── Auth screen ────────────────────────────────────────── */
.auth {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    max-width: 420px;
    margin: 0 auto;
}
.auth__logo {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: var(--color-ink);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-surface-alt);
    font-size: 28px;
    margin-bottom: 20px;
}
.auth__title { font-size: 28px; font-weight: 600; letter-spacing: -0.025em; margin: 0 0 4px; }
.auth__sub { color: var(--color-mid-gray); margin: 0 0 24px; }

/* ── GPS / photo helpers ────────────────────────────────── */
.photo-preview {
    display: block;
    width: 100%;
    max-height: 240px;
    object-fit: cover;
    border-radius: 18px;
    border: 1px solid var(--color-hairline);
    margin-top: 8px;
}
.gps-readout { font-size: 13px; color: var(--color-mid-gray); }

/* ── Assessment preview ─────────────────────────────────── */
.assessment { border-top: 1px solid var(--color-hairline); padding-top: 12px; margin-top: 8px; }
.assessment__row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    padding: 4px 0;
}
.assessment__row--total {
    border-top: 1px solid var(--color-hairline);
    margin-top: 6px;
    padding-top: 10px;
    font-weight: 600;
    font-size: 15px;
}

.sync-summary {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 12px;
    color: var(--color-mid-gray);
    font-size: 13px;
}

.empty-state {
    text-align: center;
    color: var(--color-mid-gray);
    padding: 40px 16px;
}