/* ============================================================================
   Tow DVIR — Driver UI
   Mobile-first, industrial dark theme, optimized for greasy hands & 4G.
   ============================================================================ */

:root {
    --bg: #0a0a0a;
    --panel: #15171a;
    --panel-2: #1c1f24;
    --border: #2a2f37;
    --text: #f4f4f5;
    --text-muted: #8a8f99;
    --accent: #f5a623;
    --accent-2: #ffb74d;
    --pass: #27ae60;
    --fail: #c0392b;
    --na: #6b7280;
    --warn: #e67e22;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.45;
    overflow-x: hidden;
}

#topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 12px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-weight: 800;
    letter-spacing: 0.04em;
    font-size: 17px;
    text-transform: uppercase;
    color: var(--accent);
}

.brand-meta {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
}

.screen {
    display: none;
    padding: 18px;
    max-width: 720px;
    margin: 0 auto;
    padding-bottom: 80px;
}
.screen.active { display: block; }

h1 { font-size: 26px; margin: 0 0 6px 0; font-weight: 800; }
h2 { font-size: 20px; margin: 0 0 4px 0; font-weight: 700; }
h3 { font-size: 16px; margin: 24px 0 8px 0; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
.section-h { font-size: 13px; margin: 24px 0 10px 0; }

.muted { color: var(--text-muted); }
.small { font-size: 13px; }

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 16px;
}

label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
    margin: 14px 0 6px 0;
}
label:first-child { margin-top: 0; }

input[type="tel"], input[type="number"], input[type="text"], input[type="password"], textarea, select {
    width: 100%;
    padding: 14px 16px;
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 17px;
    font-family: inherit;
}
select.block-select { appearance: auto; }
select:disabled { opacity: 0.6; }
input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.18);
}

input[type="file"] {
    width: 100%;
    padding: 12px;
    background: var(--panel-2);
    border: 1px dashed var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 14px;
}

textarea { resize: vertical; min-height: 70px; }

button {
    cursor: pointer;
    font-family: inherit;
}

.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 14px 22px;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.05s, opacity 0.15s;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.btn-primary {
    background: var(--accent);
    color: #1a1a1a;
}
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.big { padding: 18px 24px; font-size: 17px; }
.block { display: block; width: 100%; margin-top: 12px; }

.link {
    background: none;
    border: none;
    color: var(--accent);
    font-size: 14px;
    padding: 4px 0;
    cursor: pointer;
}

.back {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 15px;
    padding: 4px 0;
    margin-bottom: 12px;
    cursor: pointer;
}

.error {
    color: var(--fail);
    font-size: 14px;
    margin-top: 10px;
    min-height: 20px;
}

.welcome {
    margin-bottom: 18px;
    padding: 18px;
    background: linear-gradient(135deg, var(--panel) 0%, var(--panel-2) 100%);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.welcome-name { font-size: 22px; font-weight: 700; margin-top: 4px; }

.status-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 18px;
    margin-bottom: 18px;
}
.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--panel-2);
    color: var(--text-muted);
}
.badge.done { background: rgba(39, 174, 96, 0.18); color: var(--pass); }
.badge.warn { background: rgba(230, 126, 34, 0.18); color: var(--warn); }
.badge.fail { background: rgba(192, 57, 43, 0.18); color: var(--fail); }

/* Truck list */
.list { display: flex; flex-direction: column; gap: 10px; }
.truck-row, .recent-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 18px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.truck-row:active { transform: scale(0.99); }
.truck-row:hover { border-color: var(--accent); }
.truck-unit {
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.04em;
    font-family: 'Courier New', monospace;
}
.truck-meta {
    text-align: right;
    color: var(--text-muted);
    font-size: 13px;
}

.form-header {
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 18px;
    padding: 16px 18px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
}

/* Inspection items */
.cat-group { margin-bottom: 14px; }
.cat-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding: 10px 6px;
    font-weight: 700;
}

.item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 6px;
    cursor: pointer;
    gap: 10px;
}
.item-row:active { transform: scale(0.995); }
.item-row.has-notes::after {
    content: "📝";
    font-size: 12px;
}
.item-row.has-photo::before {
    content: "📷";
    font-size: 12px;
    margin-right: 6px;
}

.item-label { flex: 1; font-size: 15px; }
.item-mini-status {
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 6px;
    background: var(--panel-2);
    color: var(--text-muted);
    text-transform: uppercase;
    min-width: 50px;
    text-align: center;
}
.item-mini-status.pass { background: rgba(39, 174, 96, 0.18); color: var(--pass); }
.item-mini-status.fail { background: rgba(192, 57, 43, 0.18); color: var(--fail); }
.item-mini-status.na   { background: rgba(107, 114, 128, 0.25); color: #c5c8cf; }

.checkbox.big {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    cursor: pointer;
    padding: 8px 0;
}
.checkbox.big input { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; }

/* Photo strip */
.photo-strip {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
}
.photo-strip img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border);
}

/* Signature */
.sig-wrap {
    margin-top: 8px;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
}
#sigCanvas {
    width: 100%;
    height: 180px;
    display: block;
    touch-action: none;
}
#clearSigBtn { padding: 8px 16px; }

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 100;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}
.modal-card {
    background: var(--panel);
    border-top: 2px solid var(--accent);
    border-radius: 14px 14px 0 0;
    padding: 24px 18px 32px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}
.close {
    position: absolute;
    top: 8px;
    right: 12px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 32px;
    cursor: pointer;
    line-height: 1;
}

.status-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 16px 0;
}
.status-btn {
    padding: 18px 8px;
    border: 2px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    border-radius: 10px;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: all 0.1s;
}
.status-btn:active { transform: scale(0.97); }
.status-btn.selected[data-status="pass"] { background: var(--pass); border-color: var(--pass); color: #fff; }
.status-btn.selected[data-status="fail"] { background: var(--fail); border-color: var(--fail); color: #fff; }
.status-btn.selected[data-status="na"]   { background: var(--na);   border-color: var(--na);   color: #fff; }

/* Success */
.success-card {
    text-align: center;
    margin-top: 30px;
}
.checkmark {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--pass);
    color: #fff;
    font-size: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-weight: 800;
}

@media (min-width: 720px) {
    .screen { padding: 28px; }
    h1 { font-size: 32px; }
}