/* ═══════════════════════════════════════════════════════════════════════════
   MA BIBLIOTHÈQUE — Design System
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --clr-primary:     #2c5f2e;
    --clr-primary-dk:  #1e4020;
    --clr-primary-lt:  #e8f5e9;
    --clr-accent:      #97bc62;
    --clr-warning:     #e67e22;
    --clr-warning-lt:  #fef3e2;
    --clr-danger:      #c0392b;
    --clr-danger-lt:   #fdecea;
    --clr-bg:          #f4f4ef;
    --clr-surface:     #ffffff;
    --clr-border:      #dde3d5;
    --clr-text:        #1a1a1a;
    --clr-text-muted:  #6b7280;

    --nav-h:  64px;
    --hdr-h:  52px;
    --radius:  12px;
    --shadow:  0 2px 12px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.18);

    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-tap-highlight-color: transparent; }
body {
    font-family: var(--font);
    background: var(--clr-bg);
    color: var(--clr-text);
    min-height: 100dvh;
    overscroll-behavior: none;
}
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ── App Shell ──────────────────────────────────────────────────────────── */
#app { display: flex; flex-direction: column; height: 100dvh; }

/* ── Header ─────────────────────────────────────────────────────────────── */
.header {
    height: var(--hdr-h);
    background: var(--clr-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
    z-index: 10;
}
.header-logo { font-size: 1.1rem; font-weight: 700; letter-spacing: .3px; }
.header-pret-badge {
    background: var(--clr-warning);
    color: #fff;
    font-size: .75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
}

/* ── Main / Sections ─────────────────────────────────────────────────────── */
.main {
    flex: 1;
    overflow: hidden;
    position: relative;
}
.section {
    position: absolute;
    inset: 0;
    overflow-y: auto;
    padding: 16px;
    display: none;
    -webkit-overflow-scrolling: touch;
}
.section.active { display: block; }

/* ── Bottom Nav ──────────────────────────────────────────────────────────── */
.bottom-nav {
    height: var(--nav-h);
    background: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    display: flex;
    flex-shrink: 0;
    z-index: 10;
}
.nav-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--clr-text-muted);
    font-size: .65rem;
    font-weight: 500;
    padding: 6px 0;
    transition: color .15s;
}
.nav-btn svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}
.nav-btn.active {
    color: var(--clr-primary);
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: .9rem;
    font-weight: 600;
    transition: opacity .15s, transform .1s;
    white-space: nowrap;
}
.btn:active { transform: scale(.97); }

.btn-primary  { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { opacity: .9; }
.btn-outline  { background: transparent; color: var(--clr-primary); border: 2px solid var(--clr-primary); }
.btn-ghost    { background: transparent; color: var(--clr-text-muted); }
.btn-danger   { background: var(--clr-danger); color: #fff; }
.btn-warning  { background: var(--clr-warning); color: #fff; }
.btn-sm       { padding: 6px 12px; font-size: .8rem; }
.btn-full     { width: 100%; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.field label { font-size: .82rem; font-weight: 600; color: var(--clr-text-muted); }

input[type="text"],
input[type="tel"],
input[type="date"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--clr-border);
    border-radius: 8px;
    font-size: .95rem;
    background: var(--clr-surface);
    color: var(--clr-text);
    transition: border-color .15s;
    appearance: none;
    -webkit-appearance: none;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px var(--clr-primary-lt);
}
select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%236b7280' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
         background-repeat: no-repeat; background-position: right 10px center; background-size: 20px; padding-right: 36px; }
select:disabled { background-color: #f0f0f0; color: var(--clr-text-muted); }
textarea { resize: vertical; min-height: 80px; }

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 12px;
}
.card-body { padding: 14px; }

/* ── Toolbars / Headers ──────────────────────────────────────────────────── */
.section-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 14px;
}
.section-title { font-size: 1.05rem; font-weight: 700; }
.count-badge {
    background: var(--clr-primary-lt);
    color: var(--clr-primary);
    font-size: .75rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 999px;
    flex-shrink: 0;
}
.count-badge--warning { background: var(--clr-warning-lt); color: var(--clr-warning); }

/* ── Scanner ─────────────────────────────────────────────────────────────── */
#reader {
    border-radius: var(--radius);
    overflow: hidden;
    background: #111;
    margin-bottom: 12px;
    min-height: 220px;
    width: 100%;
    position: relative;
}
#reader video {
    width: 100% !important;
    height: auto !important;
    border-radius: var(--radius);
    display: block;
}
/* Masquer l'UI superflue du wrapper html5-qrcode */
#reader__dashboard { display: none !important; }
#reader__header_message { display: none !important; }

.scanner-error {
    color: #fff;
    text-align: center;
    padding: 40px 20px;
    font-size: .9rem;
    line-height: 1.6;
}

.scanner-hint {
    text-align: center;
    font-size: .85rem;
    color: var(--clr-text-muted);
    margin-bottom: 16px;
}
.manual-isbn {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}
.manual-isbn input { flex: 1; }

/* ── Book Preview (après scan) ───────────────────────────────────────────── */
.book-card-preview {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 14px;
    display: flex;
    gap: 14px;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
}
.book-cover-sm {
    width: 70px;
    min-width: 70px;
    height: 100px;
    object-fit: cover;
    border-radius: 6px;
    background: var(--clr-border);
}
.book-cover-placeholder {
    width: 70px;
    min-width: 70px;
    height: 100px;
    border-radius: 6px;
    background: var(--clr-primary-lt);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary);
    font-size: 2rem;
}
.book-meta { flex: 1; min-width: 0; }
.book-meta .book-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.book-meta .book-author { color: var(--clr-text-muted); font-size: .88rem; margin-bottom: 4px; }
.book-meta .book-detail { font-size: .78rem; color: var(--clr-text-muted); }
.book-meta .badge-genre {
    display: inline-block;
    background: var(--clr-primary-lt);
    color: var(--clr-primary);
    font-size: .72rem;
    padding: 2px 8px;
    border-radius: 999px;
    margin-top: 4px;
}

/* ── Location Picker ─────────────────────────────────────────────────────── */
.location-picker {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
    margin-bottom: 14px;
}
.picker-title { font-size: .95rem; font-weight: 700; margin-bottom: 10px; }
.picker-hint  { font-size: .78rem; color: var(--clr-text-muted); margin-top: 8px; }
.location-picker select { margin-bottom: 10px; }
.location-picker select:last-of-type { margin-bottom: 0; }

.scanner-actions { display: flex; flex-direction: column; gap: 8px; }

/* ── Books Grid ──────────────────────────────────────────────────────────── */
.filter-input {
    width: 100%;
    margin-bottom: 14px;
}
.books-grid { display: flex; flex-direction: column; gap: 10px; }

.book-item {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: stretch;
    overflow: hidden;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
}
.book-item:active { transform: scale(.98); }
.book-item-cover {
    width: 60px;
    min-width: 60px;
    background: var(--clr-primary-lt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--clr-primary);
}
.book-item-cover img {
    width: 60px;
    height: 100%;
    object-fit: cover;
}
.book-item-body {
    flex: 1;
    padding: 10px 12px;
    min-width: 0;
}
.book-item-title {
    font-weight: 600;
    font-size: .93rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}
.book-item-author { font-size: .8rem; color: var(--clr-text-muted); margin-bottom: 4px; }
.book-item-location {
    font-size: .75rem;
    color: var(--clr-primary);
    font-weight: 500;
}
.book-item-pret {
    font-size: .75rem;
    color: var(--clr-warning);
    font-weight: 600;
}
.book-item-noloc { font-size: .75rem; color: var(--clr-border); font-style: italic; }

/* ── Meubles ─────────────────────────────────────────────────────────────── */
.meuble-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 14px;
    overflow: hidden;
}
.meuble-header {
    display: flex;
    align-items: center;
    padding: 12px 14px;
    background: var(--clr-primary);
    color: #fff;
    gap: 10px;
}
.meuble-name { flex: 1; font-weight: 700; font-size: 1rem; }
.meuble-actions { display: flex; gap: 6px; }
.meuble-actions button {
    background: rgba(255,255,255,.2);
    color: #fff;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: .78rem;
    font-weight: 600;
}
.etageres-list { padding: 10px 14px; display: flex; flex-direction: column; gap: 8px; }
.etagere-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--clr-bg);
    border-radius: 8px;
    padding: 8px 12px;
}
.etagere-name { flex: 1; font-size: .9rem; font-weight: 500; }
.etagere-count { font-size: .78rem; color: var(--clr-text-muted); }
.etagere-del { color: var(--clr-danger); font-size: .78rem; font-weight: 600; padding: 4px 8px; }
.add-etagere-btn {
    margin: 0 14px 12px;
    color: var(--clr-primary);
    font-size: .83rem;
    font-weight: 600;
    border: 1.5px dashed var(--clr-accent);
    border-radius: 8px;
    width: calc(100% - 28px);
    padding: 8px;
    background: var(--clr-primary-lt);
}

/* ── Prêts ───────────────────────────────────────────────────────────────── */
.pret-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 10px;
    overflow: hidden;
}
.pret-card-header {
    background: var(--clr-warning-lt);
    border-left: 4px solid var(--clr-warning);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pret-card-header.returned {
    background: var(--clr-primary-lt);
    border-left-color: var(--clr-primary);
}
.pret-book-title { flex: 1; font-weight: 700; font-size: .92rem; }
.pret-card-body { padding: 10px 14px; }
.pret-detail { font-size: .83rem; color: var(--clr-text-muted); margin-bottom: 3px; }
.pret-detail strong { color: var(--clr-text); }
.pret-overdue { color: var(--clr-danger); font-weight: 600; }
.pret-actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }

/* ── Search ──────────────────────────────────────────────────────────────── */
.search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}
.search-bar input { flex: 1; }
#search-results { display: flex; flex-direction: column; gap: 10px; }

.search-result-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    cursor: pointer;
    transition: transform .15s;
}
.search-result-card:active { transform: scale(.98); }
.search-result-cover {
    width: 50px;
    min-width: 50px;
    height: 72px;
    object-fit: cover;
    border-radius: 6px;
    background: var(--clr-primary-lt);
}
.search-result-placeholder {
    width: 50px;
    min-width: 50px;
    height: 72px;
    border-radius: 6px;
    background: var(--clr-primary-lt);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary);
    font-size: 1.4rem;
}
.search-result-info { flex: 1; min-width: 0; }
.search-result-title { font-weight: 700; font-size: .93rem; margin-bottom: 2px; }
.search-result-author { font-size: .8rem; color: var(--clr-text-muted); margin-bottom: 6px; }
.location-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--clr-primary-lt);
    color: var(--clr-primary);
    font-size: .75rem;
    font-weight: 600;
    padding: 2px 9px;
    border-radius: 999px;
}
.location-tag.on-loan {
    background: var(--clr-warning-lt);
    color: var(--clr-warning);
}
.location-tag.no-loc {
    background: #f0f0f0;
    color: var(--clr-text-muted);
}

/* ── Empty States ────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    color: var(--clr-text-muted);
    font-size: .9rem;
    padding: 40px 20px;
    line-height: 1.6;
}

/* ── Modal ───────────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 100;
    display: flex;
    align-items: flex-end;
    animation: fadeIn .2s;
}
.modal-overlay.hidden { display: none; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-box {
    background: var(--clr-surface);
    border-radius: var(--radius) var(--radius) 0 0;
    width: 100%;
    max-height: 92dvh;
    overflow-y: auto;
    padding: 20px 16px 32px;
    position: relative;
    animation: slideUp .25s ease-out;
}
@keyframes slideUp {
    from { transform: translateY(60px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 14px;
    font-size: 1.4rem;
    color: var(--clr-text-muted);
    line-height: 1;
    padding: 4px 8px;
}

/* Contenu du modal livre */
.modal-book { display: flex; flex-direction: column; gap: 14px; }
.modal-book-hero { display: flex; gap: 16px; align-items: flex-start; }
.modal-book-cover {
    width: 90px;
    min-width: 90px;
    height: 130px;
    object-fit: cover;
    border-radius: 8px;
    background: var(--clr-primary-lt);
}
.modal-book-cover-ph {
    width: 90px;
    min-width: 90px;
    height: 130px;
    border-radius: 8px;
    background: var(--clr-primary-lt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--clr-primary);
}
.modal-book-info {}
.modal-book-title { font-size: 1.1rem; font-weight: 800; line-height: 1.3; margin-bottom: 4px; }
.modal-book-author { color: var(--clr-text-muted); font-size: .9rem; margin-bottom: 8px; }
.modal-book-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.tag {
    background: var(--clr-primary-lt);
    color: var(--clr-primary);
    font-size: .72rem;
    padding: 2px 9px;
    border-radius: 999px;
    font-weight: 600;
}
.tag.warn { background: var(--clr-warning-lt); color: var(--clr-warning); }

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.info-cell { background: var(--clr-bg); border-radius: 8px; padding: 8px 12px; }
.info-label { font-size: .72rem; color: var(--clr-text-muted); font-weight: 600; margin-bottom: 2px; }
.info-value { font-size: .88rem; font-weight: 500; }

.location-box {
    background: var(--clr-primary-lt);
    border-radius: 10px;
    padding: 12px 14px;
}
.location-box-title { font-size: .8rem; font-weight: 700; color: var(--clr-primary); margin-bottom: 4px; }
.location-box-text  { font-size: .95rem; font-weight: 600; }

.pret-box {
    background: var(--clr-warning-lt);
    border-left: 4px solid var(--clr-warning);
    border-radius: 0 10px 10px 0;
    padding: 12px 14px;
}
.pret-box-title { font-size: .8rem; font-weight: 700; color: var(--clr-warning); margin-bottom: 4px; }
.pret-box-text  { font-size: .92rem; }

.modal-action-row { display: flex; flex-direction: column; gap: 8px; }

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
    position: fixed;
    bottom: calc(var(--nav-h) + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #333;
    color: #fff;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: .88rem;
    font-weight: 500;
    z-index: 200;
    opacity: 0;
    transition: opacity .25s, transform .25s;
    white-space: nowrap;
    pointer-events: none;
    max-width: calc(100vw - 32px);
    text-align: center;
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.toast.success { background: var(--clr-primary); }
.toast.error   { background: var(--clr-danger);  }
.toast.warning { background: var(--clr-warning);  }

/* ── Utility ─────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }
.divider { border: none; border-top: 1px solid var(--clr-border); margin: 14px 0; }
.text-muted { color: var(--clr-text-muted); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }

/* ── Desktop fallback ────────────────────────────────────────────────────── */
@media (min-width: 600px) {
    #app { max-width: 480px; margin: 0 auto; border-left: 1px solid var(--clr-border); border-right: 1px solid var(--clr-border); }
    .modal-box { max-width: 480px; margin: 0 auto; border-radius: var(--radius); }
    .modal-overlay { align-items: center; }
}