/* ─────────────────────────────────────────────────────────────────
   MCI Patient Tracker — Stylesheet
   Design principles: dark, high-contrast, large touch targets,
   triage colors as primary visual language, field-ready.
   ───────────────────────────────────────────────────────────────── */

/* ── Reset & tokens ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:           #1c1c1e;
    --bg2:          #2c2c2e;
    --bg3:          #3a3a3c;
    --border:       #48484a;
    --text:         #f2f2f7;
    --text-sub:     #aeaeb2;
    --accent:       #3b82f6;
    --accent-hover: #2563eb;

    /* Triage palette */
    --triage-unknown: #6b7280;
    --triage-green:   #16a34a;
    --triage-yellow:  #d97706;
    --triage-red:     #dc2626;
    --triage-black:   #18181b;
    --triage-black-border: #71717a;

    --radius:   12px;
    --radius-sm: 8px;
    --touch-min: 48px;   /* minimum touch target height */
    --header-h: 56px;
    --tab-h:    56px;
    --sans:     -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono:     "SF Mono", "Fira Code", monospace;
}

html, body {
    height: 100%;
    font-family: var(--sans);
    font-size: 16px;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    overscroll-behavior: none;
}

/* ── Login page ──────────────────────────────────────────────────── */
.login-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
    padding: 1.5rem;
    background: var(--bg);
}

.login-wrap {
    width: 100%;
    max-width: 380px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-card {
    background: var(--bg2);
    border-radius: var(--radius);
    padding: 2rem;
    border: 1px solid var(--border);
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--accent);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -.05em;
    margin-bottom: .75rem;
}

.login-logo h1 { font-size: 1.4rem; font-weight: 700; }
.login-sub { font-size: .85rem; color: var(--text-sub); margin-top: .25rem; }

.login-footer { text-align: center; font-size: .75rem; color: var(--text-sub); padding-bottom: 1rem; }

/* ── App body ────────────────────────────────────────────────────── */
.app-body {
    display: flex;
    flex-direction: column;
    height: 100dvh;
    overflow: hidden;
}

#app {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* ── Forms / fields ─────────────────────────────────────────────── */
.field-group {
    display: flex;
    flex-direction: column;
    gap: .375rem;
    margin-bottom: 1rem;
}

.field-group label { font-size: .875rem; color: var(--text-sub); font-weight: 500; }

input[type="text"],
input[type="password"],
input[type="number"],
input[type="search"],
input[type="datetime-local"],
select,
textarea,
.text-input,
.num-input,
.manual-input,
.search-input,
.filter-select {
    width: 100%;
    min-height: var(--touch-min);
    background: var(--bg3);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .625rem .875rem;
    font-size: 1rem;
    font-family: var(--sans);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59,130,246,.25);
}

textarea { resize: vertical; min-height: 80px; }

.num-input { min-height: 40px; width: auto; flex: 1; text-align: center; }

/* ── Buttons ────────────────────────────────────────────────────── */
button { cursor: pointer; font-family: var(--sans); border: none; outline: none; }

.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-min);
    padding: .625rem 1.25rem;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    transition: background .15s;
}
.btn-primary:hover  { background: var(--accent-hover); }
.btn-primary:active { opacity: .85; }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-full { width: 100%; }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-min);
    padding: .5rem 1rem;
    background: var(--bg3);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .95rem;
    font-weight: 500;
}
.btn-secondary:hover { background: var(--border); }

.btn-ghost {
    background: transparent;
    color: var(--text-sub);
    padding: .5rem 1rem;
    font-size: .9rem;
    border-radius: var(--radius-sm);
}
.btn-ghost:hover { background: var(--bg3); }

.icon-btn {
    width: var(--touch-min);
    height: var(--touch-min);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text);
    font-size: 1.25rem;
    border-radius: 50%;
}
.icon-btn:hover { background: var(--bg3); }

.back-btn {
    background: transparent;
    color: var(--accent);
    padding: .5rem;
    font-size: .95rem;
    border-radius: var(--radius-sm);
    min-height: var(--touch-min);
    display: flex;
    align-items: center;
}

/* ── Error / status ──────────────────────────────────────────────── */
.error-banner {
    background: rgba(220,38,38,.15);
    border: 1px solid rgba(220,38,38,.5);
    color: #fca5a5;
    padding: .75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    margin-bottom: .75rem;
}

/* ── Sync indicator ──────────────────────────────────────────────── */
.sync-indicator {
    font-size: .75rem;
    font-weight: 600;
    padding: .25rem .6rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.sync-offline { background: #3f3f46; color: #a1a1aa; }
.sync-online  { background: rgba(22,163,74,.2); color: #86efac; }
.sync-pending { background: rgba(217,119,6,.2); color: #fcd34d; }
.sync-syncing { background: rgba(59,130,246,.2); color: #93c5fd; }
.sync-synced  { background: rgba(22,163,74,.2); color: #86efac; }
.sync-error   { background: rgba(220,38,38,.2); color: #fca5a5; }

/* ── Splash / loading ────────────────────────────────────────────── */
.splash {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100dvh;
}
.splash-mark  { font-size: 3rem; font-weight: 900; color: var(--accent); }
.splash-label { font-size: 1rem; color: var(--text-sub); margin-top: .5rem; }

.loading-spin {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
}
.loading-spin::after {
    content: '';
    width: 36px; height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Screen header ───────────────────────────────────────────────── */
.screen-header {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem 1rem;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
    min-height: var(--header-h);
}
.screen-header h1 {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ── Incident list ───────────────────────────────────────────────── */
.incident-list { padding: .75rem; display: flex; flex-direction: column; gap: .5rem; }

.incident-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    cursor: pointer;
    transition: background .15s;
}
.incident-row:hover { background: var(--bg3); }
.incident-info { flex: 1; min-width: 0; }
.incident-name { font-weight: 600; font-size: 1.05rem; }
.incident-meta { font-size: .8rem; color: var(--text-sub); margin-top: .25rem; }

.btn-join {
    flex-shrink: 0;
    min-height: var(--touch-min);
    padding: .5rem 1rem;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: .9rem;
}

/* ── FAB ─────────────────────────────────────────────────────────── */
.fab-area {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 20;
}

.fab {
    height: 56px;
    padding: 0 1.5rem;
    background: var(--accent);
    color: #fff;
    border-radius: 28px;
    font-size: 1rem;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(0,0,0,.4);
    display: flex;
    align-items: center;
    gap: .5rem;
}
.fab:hover { background: var(--accent-hover); }

/* ── Filter bar ──────────────────────────────────────────────────── */
.filter-bar {
    display: flex;
    gap: .5rem;
    padding: .5rem .75rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
}
.filter-bar input, .filter-bar select {
    min-height: 40px;
    font-size: .85rem;
    flex-shrink: 0;
}
.search-input { flex: 1; min-width: 100px; }
.filter-select { width: auto; min-width: 120px; }

/* ── Patient list ────────────────────────────────────────────────── */
.patient-list { padding: .5rem; display: flex; flex-direction: column; gap: .375rem; padding-bottom: 80px; }

.patient-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-left-width: 4px;
    border-radius: var(--radius-sm);
    padding: .75rem;
    cursor: pointer;
    min-height: 60px;
    transition: background .1s;
}
.patient-row:hover { background: var(--bg3); }

.patient-row.triage-red    { border-left-color: var(--triage-red); }
.patient-row.triage-yellow { border-left-color: var(--triage-yellow); }
.patient-row.triage-green  { border-left-color: var(--triage-green); }
.patient-row.triage-black  { border-left-color: var(--triage-black-border); }
.patient-row.triage-unknown{ border-left-color: var(--triage-unknown); }

.patient-badge-sm {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: .85rem;
    flex-shrink: 0;
}
.patient-badge-sm.triage-red    { background: var(--triage-red); color: #fff; }
.patient-badge-sm.triage-yellow { background: var(--triage-yellow); color: #1c1c1e; }
.patient-badge-sm.triage-green  { background: var(--triage-green); color: #fff; }
.patient-badge-sm.triage-black  { background: var(--triage-black); color: #fff; border: 1px solid var(--triage-black-border); }
.patient-badge-sm.triage-unknown{ background: var(--triage-unknown); color: #fff; }

.patient-info { flex: 1; min-width: 0; }
.patient-code { font-weight: 700; font-size: 1.05rem; }
.patient-disp { font-size: .8rem; color: var(--text-sub); margin-top: .15rem; }
.patient-updated { font-size: .75rem; color: var(--text-sub); flex-shrink: 0; }

/* ── Patient screen ──────────────────────────────────────────────── */
.patient-screen {
    display: flex;
    flex-direction: column;
    height: 100dvh;
    overflow: hidden;
}

.patient-header {
    flex-shrink: 0;
    padding: .5rem .75rem;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
}

/* Triage background tints on header */
.triage-bg-red    { background: rgba(220,38,38,.15); }
.triage-bg-yellow { background: rgba(217,119,6,.15); }
.triage-bg-green  { background: rgba(22,163,74,.15); }
.triage-bg-black  { background: rgba(0,0,0,.4); }
.triage-bg-unknown{ background: var(--bg2); }

.header-top {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: .5rem;
}

.patient-id-area {
    display: flex;
    justify-content: center;
    padding: .5rem 0;
}

/* Large triage badge (patient screen center) */
.triage-badge {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 4px solid rgba(255,255,255,.25);
    transition: transform .1s;
    user-select: none;
}
.triage-badge:hover  { transform: scale(1.04); }
.triage-badge:active { transform: scale(.97); }

.triage-badge.triage-red     { background: var(--triage-red); }
.triage-badge.triage-yellow  { background: var(--triage-yellow); }
.triage-badge.triage-green   { background: var(--triage-green); }
.triage-badge.triage-black   { background: var(--triage-black); border-color: var(--triage-black-border); }
.triage-badge.triage-unknown { background: var(--triage-unknown); }

.patient-num {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
    color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,.4);
}
.triage-badge.triage-yellow .patient-num { color: #1c1c1e; text-shadow: none; }

.triage-label {
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .1em;
    color: rgba(255,255,255,.85);
    margin-top: .2rem;
}
.triage-badge.triage-yellow .triage-label { color: rgba(0,0,0,.7); }

.disposition-row {
    display: flex;
    justify-content: center;
    padding: .375rem 0 .5rem;
}

.disp-btn {
    background: var(--bg3);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: .375rem 1.25rem;
    font-size: .9rem;
    font-weight: 600;
    min-height: 36px;
}
.disp-btn:hover { background: var(--border); }

/* ── Tab bar ─────────────────────────────────────────────────────── */
.tab-bar {
    display: flex;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.tab-btn {
    flex: 1;
    height: var(--tab-h);
    background: transparent;
    color: var(--text-sub);
    font-size: 1.1rem;
    font-weight: 700;
    border-bottom: 3px solid transparent;
    transition: color .15s, border-color .15s;
}
.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.tab-btn:hover { background: var(--bg3); }

/* ── Tab content ─────────────────────────────────────────────────── */
.tab-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-section { padding: 1rem; }
.tab-section h2 { font-size: 1rem; font-weight: 700; margin-bottom: .75rem; color: var(--text-sub); text-transform: uppercase; letter-spacing: .06em; }

.record-row {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .75rem;
    margin-bottom: .5rem;
    font-size: .95rem;
    line-height: 1.5;
}
.rec-time { font-size: .75rem; color: var(--text-sub); float: right; }
.region-tag {
    display: inline-block;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: .1rem .4rem;
    font-size: .8rem;
    margin-right: .3rem;
}

/* Vitals */
.vital-row {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .75rem;
    margin-bottom: .5rem;
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    align-items: center;
}
.vital-time { font-size: .75rem; color: var(--text-sub); width: 100%; }
.vital-tag {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: .2rem .5rem;
    font-size: .85rem;
    font-weight: 600;
}
.vital-note { font-size: .85rem; color: var(--text-sub); width: 100%; margin-top: .25rem; }

.add-vitals-form { margin-top: 1rem; }
.add-vitals-form summary { cursor: pointer; }

.vitals-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .5rem;
    margin: .75rem 0;
}
.vitals-grid label { display: flex; flex-direction: column; font-size: .8rem; color: var(--text-sub); gap: .25rem; }

/* Events */
.event-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .625rem .75rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: .375rem;
}
.event-type { font-weight: 600; font-size: .9rem; }
.event-time { font-size: .8rem; color: var(--text-sub); }

/* Add area */
.add-area { margin-top: 1rem; display: flex; flex-direction: column; gap: .5rem; }
.voice-row { display: flex; gap: .5rem; align-items: center; }
.voice-btn { font-size: 1.25rem; }

/* Transport */
.transport-form { display: flex; flex-direction: column; gap: .5rem; }

/* Meta */
.meta-row { font-size: .85rem; color: var(--text-sub); margin-bottom: .375rem; }
.meta-row code { font-family: var(--mono); font-size: .8rem; color: var(--text); }

.privacy-note { font-size: .8rem; color: var(--text-sub); margin-top: .375rem; font-style: italic; }

/* ── Form card (new incident) ────────────────────────────────────── */
.form-card {
    margin: 1rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

/* ── Scanner overlay ─────────────────────────────────────────────── */
.scanner-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: #000;
    display: flex;
    flex-direction: column;
}
.scanner-overlay[hidden] { display: none; }

.scanner-header {
    display: flex;
    align-items: center;
    padding: .5rem .75rem;
    background: rgba(0,0,0,.7);
    gap: .5rem;
}
.scanner-title { flex: 1; text-align: center; font-weight: 700; font-size: 1rem; }

.scanner-viewport {
    flex: 1;
    position: relative;
    overflow: hidden;
}
.scanner-viewport video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Targeting frame */
.scanner-frame {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -60%);
    width: 240px;
    height: 240px;
    border: 3px solid rgba(255,255,255,.8);
    border-radius: 12px;
    box-shadow: 0 0 0 9999px rgba(0,0,0,.45);
    pointer-events: none;
}
.scanner-frame::before, .scanner-frame::after {
    content: '';
    position: absolute;
    width: 36px;
    height: 36px;
    border-color: var(--accent);
    border-style: solid;
    border-width: 0;
}
.scanner-frame::before { top: -3px; left: -3px; border-top-width: 4px; border-left-width: 4px; border-radius: 12px 0 0 0; }
.scanner-frame::after  { bottom: -3px; right: -3px; border-bottom-width: 4px; border-right-width: 4px; border-radius: 0 0 12px 0; }

.scanner-hint {
    position: absolute;
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    font-size: .85rem;
    color: rgba(255,255,255,.75);
    text-align: center;
    white-space: nowrap;
}

.scanner-footer {
    padding: 1rem;
    background: rgba(0,0,0,.7);
    display: flex;
    justify-content: center;
}

.torch-on { color: #fcd34d; }

/* Manual entry */
.manual-entry {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 1rem;
    padding: 2rem;
}
.manual-input { font-size: 1.25rem; text-align: center; letter-spacing: .05em; }
.manual-msg { font-size: .85rem; color: rgba(255,255,255,.7); text-align: center; margin: 0; }

/* ── Modal ───────────────────────────────────────────────────────── */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0,0,0,.65);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0 0 env(safe-area-inset-bottom);
}
.modal-backdrop[hidden] { display: none; }

.modal-content {
    width: 100%;
    max-width: 500px;
    max-height: 80dvh;
    overflow-y: auto;
    background: var(--bg2);
    border-radius: var(--radius) var(--radius) 0 0;
}

.modal-inner {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}
.modal-inner h2 { font-size: 1.1rem; font-weight: 700; }

/* Triage options */
.triage-options {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: .5rem;
}
.triage-option {
    height: 64px;
    border-radius: var(--radius-sm);
    font-weight: 900;
    font-size: .8rem;
    letter-spacing: .05em;
}
.triage-option.triage-red     { background: var(--triage-red);    color: #fff; }
.triage-option.triage-yellow  { background: var(--triage-yellow); color: #1c1c1e; }
.triage-option.triage-green   { background: var(--triage-green);  color: #fff; }
.triage-option.triage-black   { background: var(--triage-black);  color: #fff; border: 1px solid var(--triage-black-border); }
.triage-option.triage-unknown { background: var(--triage-unknown);color: #fff; }
.triage-option:hover { opacity: .85; }

/* Disposition / event options */
.disp-options,
.event-options {
    display: flex;
    flex-direction: column;
    gap: .375rem;
}
.disp-option,
.event-option {
    min-height: 52px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 1rem;
    font-weight: 600;
    padding: 0 1rem;
    text-align: left;
}
.disp-option:hover,
.event-option:hover { background: var(--border); }

/* Signature canvas */
.sig-canvas {
    width: 100%;
    max-width: 100%;
    background: #fff;
    border-radius: var(--radius-sm);
    touch-action: none;
    cursor: crosshair;
}
.sig-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

/* ── Toast ───────────────────────────────────────────────────────── */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: .625rem 1.25rem;
    border-radius: 999px;
    font-size: .9rem;
    font-weight: 500;
    opacity: 0;
    transition: transform .25s, opacity .25s;
    z-index: 300;
    white-space: nowrap;
    pointer-events: none;
}
.toast-show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ── Misc / utilities ────────────────────────────────────────────── */
.empty-msg { color: var(--text-sub); font-size: .9rem; padding: .75rem 0; text-align: center; }
.error-view { padding: 2rem; text-align: center; color: #fca5a5; }

details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }

/* ── Safe area padding ───────────────────────────────────────────── */
.patient-list, .incident-list { padding-bottom: calc(80px + env(safe-area-inset-bottom)); }
.fab-area { bottom: calc(1.5rem + env(safe-area-inset-bottom)); }
.tab-content { padding-bottom: env(safe-area-inset-bottom); }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (min-width: 600px) {
    .triage-options { grid-template-columns: repeat(5, 1fr); }
    .modal-backdrop { align-items: center; }
    .modal-content  { border-radius: var(--radius); max-height: 90dvh; }
}