/* ============================================================
   QuickShelf Pro — Precision Design System
   ============================================================ */

/* ============================================================
   CSS Custom Properties — Default: Professional (light)
   ============================================================ */
:root {
    --bg:           #F4F6FA;
    --surface:      #FFFFFF;
    --surface-2:    #EEF2F7;
    --border:       #DDE3EC;
    --border-strong:#BBC7D6;

    --text:         #111827;
    --text-2:       #4B5563;
    --text-3:       #9CA3AF;

    --amber:        #B45309;
    --amber-dim:    #92400E;
    --amber-glow:   rgba(180, 83, 9, 0.08);
    --amber-glow-strong: rgba(180, 83, 9, 0.15);
    --amber-fg:     #FFFFFF;

    --teal:         #0D9488;
    --teal-dim:     #0F766E;
    --teal-glow:    rgba(13, 148, 136, 0.08);
    --teal-fg:      #FFFFFF;

    --rose:         #DC2626;
    --rose-dim:     #B91C1C;
    --rose-glow:    rgba(220, 38, 38, 0.08);

    --radius-sm:    6px;
    --radius:       10px;
    --radius-lg:    14px;

    --font-sans:    'Syne', system-ui, -apple-system, sans-serif;
    --font-mono:    'IBM Plex Mono', 'Courier New', monospace;
}

/* ============================================================
   Theme Overrides
   ============================================================ */

body.professional {
    --bg:           #F4F6FA;
    --surface:      #FFFFFF;
    --surface-2:    #EEF2F7;
    --border:       #DDE3EC;
    --border-strong:#BBC7D6;
    --text:         #111827;
    --text-2:       #4B5563;
    --text-3:       #9CA3AF;
    --amber:        #B45309;
    --amber-dim:    #92400E;
    --amber-glow:   rgba(180, 83, 9, 0.08);
    --amber-glow-strong: rgba(180, 83, 9, 0.15);
    --amber-fg:     #FFFFFF;
    --teal:         #0D9488;
    --teal-dim:     #0F766E;
    --teal-glow:    rgba(13, 148, 136, 0.08);
    --teal-fg:      #FFFFFF;
    --rose:         #DC2626;
    --rose-dim:     #B91C1C;
    --rose-glow:    rgba(220, 38, 38, 0.08);
}

body.obsidian {
    --bg:           #09090B;
    --surface:      #111113;
    --surface-2:    #18181B;
    --border:       #27272A;
    --border-strong:#3F3F46;
    --text:         #FAFAFA;
    --text-2:       #A1A1AA;
    --text-3:       #52525B;
    --amber:        #F59E0B;
    --amber-dim:    #D97706;
    --amber-glow:   rgba(245, 158, 11, 0.12);
    --amber-glow-strong: rgba(245, 158, 11, 0.22);
    --amber-fg:     #09090B;
    --teal:         #14B8A6;
    --teal-dim:     #0D9488;
    --teal-glow:    rgba(20, 184, 166, 0.12);
    --teal-fg:      #09090B;
    --rose:         #F43F5E;
    --rose-dim:     #E11D48;
    --rose-glow:    rgba(244, 63, 94, 0.12);
}

body.dark-navy {
    --bg:           #0d0f1a;
    --surface:      #141726;
    --surface-2:    #1c2033;
    --border:       #252a40;
    --border-strong:#353d5c;
    --text:         #e8eaf6;
    --text-2:       #7986cb;
    --text-3:       #3f4880;
    --amber:        #4a90e2;
    --amber-dim:    #357abd;
    --amber-glow:   rgba(74, 144, 226, 0.12);
    --amber-glow-strong: rgba(74, 144, 226, 0.22);
    --amber-fg:     #FFFFFF;
    --teal:         #27ae60;
    --teal-dim:     #1e8449;
    --teal-glow:    rgba(39, 174, 96, 0.12);
    --teal-fg:      #FFFFFF;
    --rose:         #e74c3c;
    --rose-dim:     #c0392b;
    --rose-glow:    rgba(231, 76, 60, 0.12);
}

body.forest {
    --bg:           #0b150b;
    --surface:      #111c11;
    --surface-2:    #172317;
    --border:       #1e2e1e;
    --border-strong:#2a402a;
    --text:         #e8f5e8;
    --text-2:       #7ab87a;
    --text-3:       #3a5a3a;
    --amber:        #4a9e6e;
    --amber-dim:    #357a52;
    --amber-glow:   rgba(74, 158, 110, 0.12);
    --amber-glow-strong: rgba(74, 158, 110, 0.22);
    --amber-fg:     #FFFFFF;
    --teal:         #5cb85c;
    --teal-dim:     #449d44;
    --teal-glow:    rgba(92, 184, 92, 0.12);
    --teal-fg:      #FFFFFF;
    --rose:         #d9534f;
    --rose-dim:     #c9302c;
    --rose-glow:    rgba(217, 83, 79, 0.12);
}

body.slate {
    --bg:           #1a2535;
    --surface:      #213045;
    --surface-2:    #283a52;
    --border:       #304560;
    --border-strong:#3d5575;
    --text:         #ecf0f1;
    --text-2:       #95a5a6;
    --text-3:       #516470;
    --amber:        #3498db;
    --amber-dim:    #2980b9;
    --amber-glow:   rgba(52, 152, 219, 0.12);
    --amber-glow-strong: rgba(52, 152, 219, 0.22);
    --amber-fg:     #FFFFFF;
    --teal:         #2ecc71;
    --teal-dim:     #27ae60;
    --teal-glow:    rgba(46, 204, 113, 0.12);
    --teal-fg:      #FFFFFF;
    --rose:         #e74c3c;
    --rose-dim:     #c0392b;
    --rose-glow:    rgba(231, 76, 60, 0.12);
}

body.sunset {
    --bg:           #1a0e0e;
    --surface:      #251515;
    --surface-2:    #301c1c;
    --border:       #3d2525;
    --border-strong:#523030;
    --text:         #fdf0e0;
    --text-2:       #c49a6c;
    --text-3:       #7a5030;
    --amber:        #e67e22;
    --amber-dim:    #d35400;
    --amber-glow:   rgba(230, 126, 34, 0.12);
    --amber-glow-strong: rgba(230, 126, 34, 0.22);
    --amber-fg:     #FFFFFF;
    --teal:         #27ae60;
    --teal-dim:     #1e8449;
    --teal-glow:    rgba(39, 174, 96, 0.12);
    --teal-fg:      #FFFFFF;
    --rose:         #c0392b;
    --rose-dim:     #a93226;
    --rose-glow:    rgba(192, 57, 43, 0.12);
}

/* ============================================================
   Reset + Base
   ============================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background 0.25s, color 0.25s;
}

button { font-family: var(--font-sans); cursor: pointer; }
input, textarea, select { font-family: var(--font-sans); }

/* ============================================================
   App Shell + Background Grid
   ============================================================ */
.app-shell {
    position: relative;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-bottom: 60px;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
}

body.professional .bg-grid { opacity: 0.35; }

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    padding: 24px 20px;
}

/* ============================================================
   Header
   ============================================================ */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 36px;
    gap: 12px;
}

.header-brand { display: flex; align-items: center; gap: 12px; }

.logo-mark {
    width: 38px;
    height: 38px;
    background: var(--amber);
    color: var(--amber-fg);
    font-weight: 800;
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    user-select: none;
}

.app-title { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1; }
.title-accent { color: var(--amber); }

.header-end { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.version-tag {
    font-size: 0.68rem;
    font-family: var(--font-mono);
    color: var(--text-3);
    letter-spacing: 0.05em;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 7px;
}

.header-icon-btn {
    width: 36px;
    height: 36px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.header-icon-btn:hover { border-color: var(--amber); color: var(--amber); background: var(--amber-glow); }

/* ============================================================
   Screen Management
   ============================================================ */
.screen { display: none; }

.screen.active {
    display: block;
    animation: screenIn 0.22s ease-out forwards;
}

@keyframes screenIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Screen Header
   ============================================================ */
.screen-header { margin-bottom: 22px; }

.screen-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.screen-title { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.03em; line-height: 1.2; margin-bottom: 6px; }
.screen-hint  { font-size: 0.78rem; color: var(--text-3); letter-spacing: 0.02em; }

/* ============================================================
   Main Menu Grid
   ============================================================ */
.menu-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.menu-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 24px 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    background: var(--surface);
    color: var(--text-2);
    transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
}
.menu-btn:hover  { transform: translateY(-2px); }
.menu-btn:active { transform: translateY(0); }

.menu-btn-icon { width: 24px; height: 24px; flex-shrink: 0; }

.menu-btn--amber { background: var(--amber-glow); border-color: rgba(180,83,9,0.2); color: var(--amber); }
body.obsidian .menu-btn--amber { border-color: rgba(245,158,11,0.2); }
body.dark-navy .menu-btn--amber,
body.forest    .menu-btn--amber,
body.slate     .menu-btn--amber,
body.sunset    .menu-btn--amber { border-color: rgba(255,255,255,0.1); }

.menu-btn--amber:hover { background: var(--amber-glow-strong); border-color: var(--amber); box-shadow: 0 4px 20px var(--amber-glow-strong); }

.menu-btn--teal { background: var(--teal-glow); border-color: rgba(13,148,136,0.2); color: var(--teal); }
.menu-btn--teal:hover { background: rgba(13,148,136,0.18); border-color: var(--teal); box-shadow: 0 4px 20px var(--teal-glow); }

.menu-btn--ghost { background: var(--surface); border-color: var(--border); color: var(--text-2); }
.menu-btn--ghost:hover { background: var(--surface-2); border-color: var(--border-strong); color: var(--text); }

.menu-btn--rose { background: var(--rose-glow); border-color: rgba(220,38,38,0.2); color: var(--rose); }
.menu-btn--rose:hover { background: rgba(220,38,38,0.18); border-color: var(--rose); box-shadow: 0 4px 20px var(--rose-glow); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 20px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-block { width: 100%; display: flex; }
.btn-sm { padding: 9px 14px; font-size: 0.68rem; }

.btn-amber { background: var(--amber); border-color: var(--amber); color: var(--amber-fg); }
.btn-amber:hover { background: var(--amber-dim); border-color: var(--amber-dim); box-shadow: 0 4px 16px var(--amber-glow-strong); }

.btn-teal { background: var(--teal); border-color: var(--teal); color: var(--teal-fg); }
.btn-teal:hover { background: var(--teal-dim); border-color: var(--teal-dim); box-shadow: 0 4px 16px var(--teal-glow); }

.btn-rose { background: var(--rose); border-color: var(--rose); color: #fff; }
.btn-rose:hover { background: var(--rose-dim); border-color: var(--rose-dim); box-shadow: 0 4px 16px var(--rose-glow); }

.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); border-color: var(--border-strong); color: var(--text); }

/* ============================================================
   Scan Input + Pulse
   ============================================================ */
.scan-wrapper { position: relative; margin: 28px 0 24px; padding: 20px 0; }

.scan-input {
    position: relative;
    z-index: 1;
    width: 100%;
    padding: 20px 24px;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-align: center;
    background: var(--surface);
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-lg);
    color: var(--text);
    outline: none;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.scan-input::placeholder { color: var(--text-3); font-weight: 400; }
.scan-input:focus { border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-glow), 0 0 32px var(--amber-glow); }

.pulse-ring {
    position: absolute;
    top: 50%; left: 50%;
    width: 100%; height: 68px;
    border-radius: var(--radius-lg);
    border: 1.5px solid var(--amber);
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -50%) scale(1);
    animation: radarPulse 3s ease-out infinite;
}
.pulse-ring-1 { animation-delay: 0s; }
.pulse-ring-2 { animation-delay: 1s; }
.pulse-ring-3 { animation-delay: 2s; }

@keyframes radarPulse {
    0%   { opacity: 0.55; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0;    transform: translate(-50%, -50%) scale(1.38); }
}

/* ============================================================
   Search + Form Inputs
   ============================================================ */
.search-input {
    width: 100%;
    padding: 13px 16px;
    font-size: 0.9rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    outline: none;
    margin-bottom: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input::placeholder { color: var(--text-3); }
.search-input:focus { border-color: var(--amber); box-shadow: 0 0 0 2px var(--amber-glow); }

.form-stack { display: flex; flex-direction: column; }
.form-group { margin-bottom: 14px; }

.form-label {
    display: block;
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-3);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    font-size: 0.9rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input::placeholder { color: var(--text-3); }
.form-input:focus { border-color: var(--amber); box-shadow: 0 0 0 2px var(--amber-glow); }
textarea.form-input { resize: vertical; min-height: 76px; }
.form-input--sm { max-width: 120px; }
.mono-input { font-family: var(--font-mono); letter-spacing: 0.05em; }

.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }

.form-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 8px;
}

/* ============================================================
   Chips
   ============================================================ */
.barcode-chip {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--teal);
    background: var(--teal-glow);
    border: 1px solid rgba(13,148,136,0.28);
    border-radius: 5px;
    padding: 4px 10px;
    letter-spacing: 0.08em;
    margin-top: 6px;
    word-break: break-all;
}

.shelf-chip {
    display: inline-flex;
    align-items: center;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--amber);
    background: var(--amber-glow);
    border: 1px solid rgba(180,83,9,0.28);
    border-radius: 5px;
    padding: 4px 10px;
    margin-top: 6px;
}

body.obsidian .shelf-chip { border-color: rgba(245,158,11,0.28); }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ============================================================
   Shelf Grid
   ============================================================ */
.shelf-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.shelf-btn {
    padding: 18px 6px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-2);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.shelf-btn:hover {
    background: var(--amber-glow);
    border-color: var(--amber);
    color: var(--amber);
    box-shadow: 0 0 16px var(--amber-glow), inset 0 0 10px var(--amber-glow);
    transform: translateY(-1px);
}
.shelf-btn:active { transform: translateY(0); }

/* ============================================================
   Data Cards
   ============================================================ */
.data-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 10px;
}

.data-row { display: flex; align-items: flex-start; justify-content: space-between; padding: 11px 14px; gap: 12px; }
.data-row + .data-row { border-top: 1px solid var(--border); }

.data-key { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em; color: var(--text-3); flex-shrink: 0; padding-top: 2px; text-transform: uppercase; }
.data-val { font-size: 0.88rem; font-weight: 500; color: var(--text); text-align: right; word-break: break-all; }
.data-val.mono { font-family: var(--font-mono); color: var(--teal); font-size: 0.82rem; }
.data-val.muted { color: var(--text-2); font-style: italic; }

/* ============================================================
   Alert Banner
   ============================================================ */
.alert-banner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius);
    border: 1px solid;
    margin-bottom: 14px;
}
.alert-banner--warn { background: rgba(180,83,9,0.06); border-color: rgba(180,83,9,0.28); }
body.obsidian .alert-banner--warn { background: rgba(245,158,11,0.06); border-color: rgba(245,158,11,0.28); }

.alert-icon { font-size: 1.05rem; color: var(--amber); flex-shrink: 0; line-height: 1.5; }
.alert-title { font-size: 0.88rem; font-weight: 700; color: var(--amber); margin-bottom: 2px; }
.alert-sub { font-size: 0.78rem; color: var(--text-2); }

/* ============================================================
   Section Label + Stack Actions
   ============================================================ */
.section-label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; color: var(--text-3); text-transform: uppercase; margin-bottom: 10px; margin-top: 4px; }
.stack-actions { display: flex; flex-direction: column; gap: 8px; }

/* ============================================================
   Results Container (Find + Count + Invoices)
   ============================================================ */
.results-container {
    max-height: 420px;
    overflow-y: auto;
    margin-bottom: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) var(--surface);
}

.results-container::-webkit-scrollbar { width: 5px; }
.results-container::-webkit-scrollbar-track { background: var(--surface); }
.results-container::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 6px; }
.results-container::-webkit-scrollbar-thumb:hover { background: var(--amber); }

.result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 14px;
    border-bottom: 1px solid var(--border);
    gap: 10px;
    transition: background 0.15s;
}
.result-item:last-child  { border-bottom: none; }
.result-item:hover       { background: var(--surface-2); }
.result-item.completed   { opacity: 0.5; }
.result-item.completed .result-barcode { text-decoration: line-through; color: var(--teal); }

.result-info { flex: 1; min-width: 0; }
.result-barcode { font-family: var(--font-mono); font-size: 0.82rem; font-weight: 500; color: var(--text); margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.result-shelf   { font-size: 0.72rem; color: var(--text-3); }
.result-actions { display: flex; gap: 7px; flex-shrink: 0; }

.icon-btn {
    width: 32px; height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.icon-btn:active { transform: scale(0.9); }
.icon-btn.check  { background: var(--teal-glow); border-color: rgba(13,148,136,0.28); color: var(--teal); }
.icon-btn.check:hover  { background: var(--teal); color: var(--teal-fg); border-color: var(--teal); }
.icon-btn.delete { background: var(--rose-glow); border-color: rgba(220,38,38,0.28); color: var(--rose); }
.icon-btn.delete:hover { background: var(--rose); color: #fff; border-color: var(--rose); }

.duplicate-badge       { display: inline-flex; align-items: center; font-size: 0.58rem; font-weight: 700; letter-spacing: 0.07em; padding: 2px 6px; background: var(--rose-glow); border: 1px solid rgba(220,38,38,0.3); color: var(--rose); border-radius: 3px; margin-left: 6px; vertical-align: middle; }
.duplicate-badge-small { display: inline-flex; align-items: center; font-size: 0.54rem; font-weight: 700; letter-spacing: 0.06em; padding: 1px 5px; background: var(--rose-glow); border: 1px solid rgba(220,38,38,0.25); color: var(--rose); border-radius: 3px; margin-left: 5px; vertical-align: middle; }

.empty-message { display: flex; align-items: center; justify-content: center; padding: 48px 20px; font-size: 0.82rem; color: var(--text-3); letter-spacing: 0.04em; }

/* ============================================================
   Count Sheet
   ============================================================ */
.count-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }

.labels-badge {
    display: flex; align-items: center; gap: 8px;
    background: var(--surface);
    border: 1px solid rgba(13,148,136,0.3);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    white-space: nowrap;
}
.labels-badge-key { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; color: var(--text-3); text-transform: uppercase; }
.labels-badge-val { font-family: var(--font-mono); font-size: 1.05rem; font-weight: 600; color: var(--teal); min-width: 20px; text-align: right; }

.count-footer { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; padding-top: 6px; }

.count-item { display: flex; align-items: center; padding: 11px 14px; border-bottom: 1px solid var(--border); gap: 12px; transition: background 0.15s; }
.count-item:last-child { border-bottom: none; }
.count-item:hover { background: var(--surface-2); }

.count-checkbox { width: 16px; height: 16px; accent-color: var(--teal); flex-shrink: 0; cursor: pointer; }
.count-item-info { flex: 1; min-width: 0; }
.count-barcode { font-family: var(--font-mono); font-size: 0.8rem; font-weight: 500; color: var(--text); margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.count-shelf   { font-size: 0.7rem; color: var(--text-3); }

/* ============================================================
   Invoice List
   ============================================================ */
.inv-toolbar {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 0;
}
.inv-toolbar .search-input {
    margin-bottom: 0;
    flex: 1;
}
.inv-toolbar-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 14px;
}

.invoice-card {
    display: flex;
    flex-direction: column;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    gap: 6px;
    transition: background 0.15s;
    cursor: default;
}
.invoice-card:last-child  { border-bottom: none; }
.invoice-card:hover       { background: var(--surface-2); }

.invoice-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.invoice-card-num {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--amber);
    letter-spacing: 0.06em;
    background: var(--amber-glow);
    border: 1px solid rgba(180,83,9,0.25);
    border-radius: 4px;
    padding: 2px 8px;
    flex-shrink: 0;
}
body.obsidian .invoice-card-num { border-color: rgba(245,158,11,0.25); }

.invoice-card-total {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--teal);
}

.invoice-card-top    { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.invoice-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.invoice-card-date   { font-size: 0.72rem; color: var(--text-3); }
.invoice-card-client { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.invoice-card-meta   { font-size: 0.75rem; color: var(--text-3); display: flex; gap: 12px; flex-wrap: wrap; }
.invoice-card-actions { display: flex; gap: 6px; flex-shrink: 0; align-items: center; }
.invoice-card--paid  { opacity: 0.6; }
.invoice-card--paid .invoice-card-total { color: var(--text-3); }

.inv-paid-btn {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
    white-space: nowrap;
}
.inv-paid-btn:hover { border-color: var(--teal); color: var(--teal); }
.inv-paid-btn--paid {
    border-color: var(--teal);
    color: var(--teal);
    background: rgba(20,184,166,0.08);
}
.inv-paid-btn--paid:hover { background: transparent; color: var(--text-3); border-color: var(--border); }

.inv-outstanding-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    margin-bottom: 4px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.inv-outstanding-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-3);
}
.inv-outstanding-amount {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--amber);
}

/* ============================================================
   Invoice Editor
   ============================================================ */
.inv-editor-topbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.inv-editor-topbar .screen-title { flex: 1; margin-bottom: 0; font-size: 1.2rem; }
.inv-editor-actions { display: flex; gap: 6px; }

.inv-meta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
}

/* Collapsible sections */
.inv-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 10px;
}

.inv-section-toggle {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 12px 14px;
    background: none;
    border: none;
    cursor: pointer;
    gap: 8px;
    text-align: left;
    transition: background 0.15s;
}
.inv-section-toggle:hover { background: var(--surface-2); }

.inv-section-label {
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--amber);
    text-transform: uppercase;
    flex-shrink: 0;
}

.inv-section-summary {
    font-size: 0.78rem;
    color: var(--text-2);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.inv-section-chevron {
    font-size: 0.9rem;
    color: var(--text-3);
    transition: transform 0.2s;
    flex-shrink: 0;
}

.inv-section-body {
    display: none;
    padding: 0 14px 14px;
}

.inv-section--open .inv-section-body { display: block; }
.inv-section--open .inv-section-chevron { transform: rotate(180deg); }

/* Line items */
.line-item {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px;
    margin-bottom: 8px;
}

.line-item-row1 {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
    align-items: center;
}
.line-item-row1 .form-input { flex: 1; margin: 0; }

.line-item-row2 {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 6px;
    align-items: center;
}

.line-item-field-group {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.line-item-field-group .form-label { margin-bottom: 0; }

.line-item-total-display {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--teal);
    padding: 10px 6px 0;
    white-space: nowrap;
    text-align: right;
}

.inv-total-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0 4px;
    border-top: 2px solid var(--border-strong);
    margin-top: 8px;
}
.inv-total-label  { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; color: var(--text-3); text-transform: uppercase; }
.inv-total-amount { font-family: var(--font-mono); font-size: 1.2rem; font-weight: 700; color: var(--teal); }

/* ============================================================
   Theme Modal
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 100;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.modal-overlay.active { display: flex; }

.modal-box {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 26px 22px;
    max-width: 420px;
    width: 100%;
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.94) translateY(8px); }
    to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.modal-title { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 18px; }

.theme-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 18px; }

.theme-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    padding: 12px 6px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text-2);
    font-size: 0.67rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.theme-tile:hover  { border-color: var(--border-strong); color: var(--text); }
.theme-tile.active { border-color: var(--amber); color: var(--amber); background: var(--amber-glow); }

.theme-swatch { width: 50px; height: 32px; border-radius: var(--radius-sm); border: 1px solid rgba(0,0,0,0.08); }

.swatch-professional { background: linear-gradient(135deg, #F4F6FA 50%, #B45309 50%); }
.swatch-obsidian     { background: linear-gradient(135deg, #09090B 50%, #F59E0B 50%); }
.swatch-dark-navy    { background: linear-gradient(135deg, #0d0f1a 50%, #4a90e2 50%); }
.swatch-forest       { background: linear-gradient(135deg, #0b150b 50%, #4a9e6e 50%); }
.swatch-slate        { background: linear-gradient(135deg, #1a2535 50%, #3498db 50%); }
.swatch-sunset       { background: linear-gradient(135deg, #1a0e0e 50%, #e67e22 50%); }

/* ============================================================
   Settings
   ============================================================ */
.settings-panel { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }

.settings-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 15px;
}

.settings-heading { font-size: 0.67rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--amber); margin-bottom: 12px; }
.settings-field { display: flex; flex-direction: column; gap: 6px; }
.settings-hint { font-size: 0.78rem; color: var(--text-3); margin-bottom: 12px; line-height: 1.5; }

.custom-shelf-row { display: flex; gap: 8px; margin-top: 10px; }
.custom-shelf-row .form-input { flex: 1; }

.custom-shelf-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 7px;
    font-size: 0.82rem;
    color: var(--text-2);
}
.custom-shelf-item button {
    padding: 5px 11px;
    font-family: var(--font-sans);
    font-size: 0.62rem; font-weight: 700; letter-spacing: 0.08em;
    background: var(--rose-glow);
    border: 1px solid rgba(220,38,38,0.28);
    color: var(--rose);
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.custom-shelf-item button:hover { background: var(--rose); color: #fff; border-color: var(--rose); }

.backup-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
    width: min(440px, calc(100vw - 32px));
}

.toast {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    width: 100%;
    line-height: 1.4;
}
.toast--visible { opacity: 1; transform: translateY(0); }
.toast--success { border-color: rgba(13,148,136,0.4); background: rgba(13,148,136,0.08); color: var(--teal); }
.toast--error   { border-color: rgba(220,38,38,0.4);  background: rgba(220,38,38,0.08);  color: var(--rose); }
.toast--warn    { border-color: rgba(180,83,9,0.4);   background: rgba(180,83,9,0.06);   color: var(--amber); }
body.obsidian .toast--warn { border-color: rgba(245,158,11,0.4); background: rgba(245,158,11,0.06); }

/* ============================================================
   Custom Confirm Overlay
   ============================================================ */
.confirm-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 150;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.confirm-overlay.active { display: flex; }

.confirm-box {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    animation: modalIn 0.2s ease-out;
}
.confirm-icon    { font-size: 1.7rem; color: var(--amber); margin-bottom: 12px; line-height: 1; }
.confirm-message { font-size: 0.9rem; color: var(--text-2); line-height: 1.65; margin-bottom: 20px; }
.confirm-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* ============================================================
   Invoice Print Area
   ============================================================ */
#invoicePrintArea { display: none; }

@media print {
    .app-shell,
    .toast-container,
    .confirm-overlay { display: none !important; }

    #invoicePrintArea {
        display: block !important;
        font-family: Georgia, 'Times New Roman', serif;
        font-size: 11pt;
        color: #000;
        background: #fff;
        padding: 0.5in;
        max-width: 8.5in;
        margin: 0 auto;
    }

    .print-header {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        margin-bottom: 28px;
        padding-bottom: 14px;
        border-bottom: 2px solid #000;
    }
    .print-seller-name    { font-size: 14pt; font-weight: 700; margin-bottom: 4px; }
    .print-seller-address { font-size: 10pt; line-height: 1.5; color: #444; }

    .print-meta            { text-align: right; }
    .print-meta-title      { font-size: 22pt; font-weight: 700; text-transform: uppercase; letter-spacing: 3px; margin-bottom: 10px; }
    .print-meta-table      { margin-left: auto; border-collapse: collapse; }
    .print-meta-table td   { padding: 2px 6px; font-size: 10pt; }
    .print-meta-table td:first-child { font-weight: 700; text-align: right; padding-right: 10px; color: #555; }

    .print-bill-to         { margin-bottom: 24px; }
    .print-bill-to-label   { font-size: 8pt; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: #777; margin-bottom: 4px; }
    .print-bill-to-name    { font-size: 12pt; font-weight: 700; }
    .print-bill-to-address { font-size: 10pt; line-height: 1.6; color: #444; }

    .print-items           { width: 100%; border-collapse: collapse; margin-bottom: 12px; }
    .print-items th        { font-size: 8pt; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid #000; padding: 5px 4px; text-align: left; }
    .print-items th:not(:first-child) { text-align: right; }
    .print-items td        { padding: 5px 4px; font-size: 10pt; border-bottom: 1px solid #ccc; vertical-align: top; }
    .print-items td:not(:first-child) { text-align: right; white-space: nowrap; }

    .print-total-section   { display: flex; justify-content: flex-end; padding-top: 10px; border-top: 2px solid #000; margin-top: 4px; gap: 32px; align-items: baseline; }
    .print-total-label     { font-size: 11pt; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
    .print-total-amount    { font-size: 14pt; font-weight: 700; }

    .print-notes           { margin-top: 28px; font-size: 10pt; color: #555; line-height: 1.6; }
    .print-notes-label     { font-size: 8pt; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: #777; margin-bottom: 4px; }
    .print-footer          { margin-top: 48px; text-align: center; font-size: 9pt; color: #888; font-style: italic; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 380px) {
    .menu-grid { gap: 8px; }
    .menu-btn  { padding: 20px 8px; gap: 8px; }
    .shelf-grid { grid-template-columns: repeat(2, 1fr); }
    .count-footer { grid-template-columns: 1fr; }
    .form-row-2 { grid-template-columns: 1fr; }
    .form-row-3 { grid-template-columns: 1fr 1fr; }
    .backup-row { grid-template-columns: 1fr; }
    .theme-grid { grid-template-columns: repeat(2, 1fr); }
    .inv-meta-grid { grid-template-columns: 1fr 1fr; }
}