:root {
    --bg: #f6f7f9;
    --fg: #1f2933;
    --muted: #52606d;
    --accent: #512bd4;
    --accent-fg: #ffffff;
    --border: #d4d8de;
    --error: #b3261e;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

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

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--accent);
    color: var(--accent-fg);
    position: sticky;
    top: 0;
    z-index: 10;
}

.app-header .brand {
    color: var(--accent-fg);
    font-weight: 700;
    font-size: 1.125rem;
}

.app-header nav { display: flex; gap: 1rem; }
.app-header nav a { color: var(--accent-fg); }

.app-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 1rem;
}

h1 { font-size: 1.5rem; margin: 0.5rem 0 1rem; }

.cta {
    display: inline-block;
    padding: 0.6rem 1rem;
    background: var(--accent);
    color: var(--accent-fg);
    border-radius: 0.4rem;
    font-weight: 600;
}
.cta:hover { text-decoration: none; opacity: 0.9; }

.capture-button {
    display: inline-block;
    padding: 0.9rem 1.4rem;
    background: var(--accent);
    color: var(--accent-fg);
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}
.capture-button:has(input:disabled) { opacity: 0.6; cursor: progress; }
.capture-button input[type="file"] {
    position: absolute;
    width: 1px; height: 1px;
    opacity: 0;
    overflow: hidden;
}

.preview {
    margin: 1.5rem 0 0;
    padding: 0.75rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
}
.preview img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0.4rem;
}
.preview figcaption {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--muted);
}

.error {
    padding: 0.75rem 1rem;
    background: #fde7e7;
    color: var(--error);
    border-radius: 0.4rem;
    margin: 1rem 0;
}

.app-header .user { margin-left: auto; font-size: 0.875rem; opacity: 0.9; }
.logout-form { margin: 0 0 0 0.75rem; }
.logout-form button,
.app-header .user + .logout-form button {
    background: transparent;
    border: 1px solid var(--accent-fg);
    color: var(--accent-fg);
    padding: 0.35rem 0.7rem;
    border-radius: 0.4rem;
    cursor: pointer;
}

.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.home-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

/* Box list */
.box-list { list-style: none; margin: 1rem 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.box-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--fg);
}
.box-card:hover { text-decoration: none; border-color: var(--accent); }
.box-number { font-weight: 700; color: var(--accent); min-width: 2.5rem; }
.box-main { display: flex; flex-direction: column; }
.box-label { font-weight: 600; }
.box-meta { font-size: 0.875rem; color: var(--muted); }
.box-number-badge { font-weight: 700; color: var(--accent); }

.empty-state {
    margin: 2rem 0;
    padding: 2rem 1rem;
    text-align: center;
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: 0.5rem;
}
.empty-state p { color: var(--muted); margin-top: 0; }

.pager { display: flex; align-items: center; gap: 1rem; margin: 1rem 0; justify-content: center; }
.pager button { padding: 0.4rem 0.8rem; border-radius: 0.4rem; border: 1px solid var(--border); background: #fff; cursor: pointer; }
.pager button:disabled { opacity: 0.5; cursor: default; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 0.25rem; margin: 0 0 1rem; }
.field label { font-weight: 600; font-size: 0.9375rem; }
.field input,
.field textarea {
    width: 100%;
    padding: 0.6rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
    font: inherit;
    background: #fff;
}
.field input[readonly] { background: #eef0f3; color: var(--muted); }
.field .hint, .hint { font-size: 0.8125rem; color: var(--muted); }
.validation-message { color: var(--error); font-size: 0.8125rem; }

.form-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; }
.form-actions .cta { border: none; cursor: pointer; font: inherit; }
button.cta:disabled { opacity: 0.6; cursor: progress; }

.btn-secondary {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 0.4rem;
    font: inherit;
    cursor: pointer;
}
.btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-danger {
    padding: 0.6rem 1rem;
    border: 1px solid var(--error);
    background: #fff;
    color: var(--error);
    border-radius: 0.4rem;
    font: inherit;
    cursor: pointer;
}
.btn-danger:disabled { opacity: 0.6; cursor: progress; }

.confirm {
    margin: 1rem 0;
    padding: 1rem;
    background: #fff;
    border: 1px solid var(--error);
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
}

.box-details { margin: 1rem 0; }
.box-details dt { font-weight: 600; font-size: 0.875rem; color: var(--muted); margin-top: 0.75rem; }
.box-details dd { margin: 0.1rem 0 0; }
.box-details code { background: #eef0f3; padding: 0.1rem 0.35rem; border-radius: 0.3rem; }

h2 { font-size: 1.2rem; margin: 1.25rem 0 0.5rem; }

/* Item list */
.item-list { list-style: none; margin: 0.5rem 0; padding: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--fg);
}
.item-row:hover { text-decoration: none; border-color: var(--accent); }
.item-name { font-weight: 600; }
.item-meta { display: flex; align-items: center; gap: 0.6rem; color: var(--muted); font-size: 0.875rem; }
.item-meta .qty { font-weight: 600; color: var(--fg); }
.photo-badge { white-space: nowrap; }
.qty-badge { font-weight: 700; color: var(--accent); font-size: 1.1rem; }

/* Photo gallery */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.6rem;
    margin: 0.75rem 0;
}
.photo-tile {
    position: relative;
    margin: 0;
    aspect-ratio: 1 / 1;
    border-radius: 0.5rem;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #eef0f3;
}
.photo-tile img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-delete {
    position: absolute;
    top: 0.3rem;
    right: 0.3rem;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    cursor: pointer;
    line-height: 1;
}
.photo-confirm {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.5rem;
}
.photo-confirm button { font-size: 0.8125rem; padding: 0.3rem 0.6rem; }

.head-actions { display: flex; align-items: center; gap: 1rem; }

/* Labels */
.label-toolbar { display: flex; align-items: center; gap: 1rem; margin: 0.5rem 0 1rem; }
.label-toolbar .cta { border: none; cursor: pointer; font: inherit; }

.label-sheet { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.label-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 3.4in;
    max-width: 100%;
    padding: 0.5rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
}
.label-qr { width: 1.3in; height: 1.3in; }
.label-text { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.label-number { font-weight: 700; }
.label-title { font-weight: 600; }
.label-location { font-size: 0.875rem; color: var(--muted); }
.label-code { font-size: 0.75rem; color: var(--muted); font-family: ui-monospace, monospace; }

@media print {
    .app-header, .no-print { display: none !important; }
    .app-main { max-width: none; margin: 0; padding: 0; }
    body { background: #fff; }
    .label-sheet { gap: 0.25in; }
    .label-card { border: 1px solid #000; break-inside: avoid; page-break-inside: avoid; }
}