/* ============================================================
   TERMINAL CSS – Touch-Kiosk für Raspberry Pi
   Barlow / Barlow Condensed · Dark & Light Mode
   ============================================================ */

/* ── CSS Custom Properties ── */
:root {
    --accent:        #f59e0b;
    --accent-dark:   #d97706;
    --accent-glow:   rgba(245,158,11,.25);
    --danger:        #ef4444;
    --success:       #22c55e;
    --radius:        16px;
    --radius-sm:     10px;
    --radius-lg:     24px;
    --shadow:        0 4px 24px rgba(0,0,0,.35);
    --shadow-lg:     0 12px 48px rgba(0,0,0,.5);
    --transition:    .18s cubic-bezier(.4,0,.2,1);
    --font:          'Barlow', sans-serif;
    --font-cond:     'Barlow Condensed', sans-serif;
}

/* ── Dark Mode (Standard) ── */
[data-theme="dark"] {
    --bg:            #0f1117;
    --bg-card:       #1a1d27;
    --bg-input:      #12151f;
    --bg-hover:      #252836;
    --border:        rgba(255,255,255,.08);
    --border-focus:  rgba(245,158,11,.5);
    --text:          #f0f0f5;
    --text-muted:    #6b7280;
    --text-dim:      #9ca3af;
    --numpad-bg:     #1f2235;
    --numpad-btn:    #2a2f45;
    --numpad-hover:  #353b54;
    --overlay:       rgba(0,0,0,.7);
}

/* ── Light Mode ── */
[data-theme="light"] {
    --bg:            #f3f4f8;
    --bg-card:       #ffffff;
    --bg-input:      #eef0f6;
    --bg-hover:      #e8eaf2;
    --border:        rgba(0,0,0,.08);
    --border-focus:  rgba(245,158,11,.6);
    --text:          #111827;
    --text-muted:    #6b7280;
    --text-dim:      #4b5563;
    --numpad-bg:     #e8eaf2;
    --numpad-btn:    #d1d5e0;
    --numpad-hover:  #c5cadb;
    --overlay:       rgba(0,0,0,.5);
    --shadow:        0 4px 24px rgba(0,0,0,.12);
    --shadow-lg:     0 12px 48px rgba(0,0,0,.18);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 18px; -webkit-tap-highlight-color: transparent; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    user-select: none;
    -webkit-user-select: none;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Typography ── */
h1, h2, h3 { font-family: var(--font-cond); letter-spacing: .03em; }

/* ── Topbar ── */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-logo {
    font-family: var(--font-cond);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .05em;
    text-transform: uppercase;
}

.topbar-logo span { color: var(--text-dim); font-weight: 400; }

.topbar-actions { display: flex; gap: 12px; align-items: center; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn:active { transform: scale(.96); }

.btn-primary {
    background: var(--accent);
    color: #000;
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-ghost {
    background: var(--bg-hover);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--numpad-hover); }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #dc2626; }

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
    border-radius: var(--radius);
}

.btn-xl {
    padding: 22px 44px;
    font-size: 1.25rem;
    border-radius: var(--radius);
    min-height: 72px;
}

.btn-icon {
    width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 50%;
}

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

/* ── Theme Toggle ── */
.theme-toggle {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition);
    color: var(--text);
}
.theme-toggle:active { transform: scale(.92); }

/* ── Kunden-Auswahl (index.php) ── */
.page-kunden {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.search-wrap {
    position: relative;
}
.search-wrap i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
    pointer-events: none;
}
.search-input {
    width: 100%;
    padding: 18px 18px 18px 52px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-input);
    color: var(--text);
    font-family: var(--font);
    font-size: 1.1rem;
    outline: none;
    transition: border-color var(--transition);
}
.search-input:focus { border-color: var(--border-focus); }

.kunden-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
    overflow-y: auto;
    flex: 1;
    padding-bottom: 8px;
}

.kunden-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 18px;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
    touch-action: manipulation;
}
.kunden-card:hover, .kunden-card:active {
    border-color: var(--accent);
    background: var(--bg-hover);
    box-shadow: 0 0 0 2px var(--accent-glow);
    transform: translateY(-2px);
}

.kunden-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-cond);
    font-size: 1.5rem;
    font-weight: 700;
    color: #000;
    flex-shrink: 0;
}

.kunden-name {
    font-weight: 600;
    font-size: .95rem;
    line-height: 1.3;
}
.kunden-firma {
    font-size: .78rem;
    color: var(--text-muted);
}

/* ── PIN-Eingabe (pin.php) ── */
.page-pin {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 24px;
    gap: 16px;
}

.pin-header { text-align: center; }
.pin-header .avatar-lg {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-cond);
    font-size: 1.6rem;
    font-weight: 700;
    color: #000;
    margin: 0 auto 10px;
}
.pin-header h2 { font-size: 1.4rem; margin-bottom: 2px; }
.pin-header p  { color: var(--text-muted); font-size: .9rem; }

.pin-dots {
    display: flex;
    gap: 16px;
    justify-content: center;
}
.pin-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--text-muted);
    background: transparent;
    transition: all var(--transition);
}
.pin-dot.filled {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Numpad */
.numpad {
    background: var(--numpad-bg);
    border-radius: var(--radius-lg);
    padding: 14px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    width: 100%;
    max-width: 300px;
}

.numpad-btn {
    aspect-ratio: 1;
    border: none;
    border-radius: var(--radius);
    background: var(--numpad-btn);
    color: var(--text);
    font-family: var(--font-cond);
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    min-height: 56px;
}
.numpad-btn:hover  { background: var(--numpad-hover); }
.numpad-btn:active { transform: scale(.92); background: var(--accent); color: #000; }

.numpad-btn.del    { font-size: 1.1rem; color: var(--danger); }
.numpad-btn.empty  { background: transparent; cursor: default; pointer-events: none; }

.pin-error {
    color: var(--danger);
    font-size: .85rem;
    font-weight: 500;
    text-align: center;
    min-height: 20px;
    animation: shake .3s ease;
}

@keyframes shake {
    0%,100% { transform: translateX(0); }
    25%      { transform: translateX(-8px); }
    75%      { transform: translateX(8px); }
}

/* ── Buchungs-Seite (buchen.php) ── */
.page-buchen {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 0;
    min-height: 0;
}

/* Artikel-Liste */
.artikel-panel {
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.artikel-section-title {
    font-family: var(--font-cond);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-muted);
    padding: 4px 0;
}

.artikel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
}

.artikel-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 14px;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
    touch-action: manipulation;
    position: relative;
}
.artikel-card:hover, .artikel-card:active {
    border-color: var(--accent);
    background: var(--bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.artikel-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    border: 1px solid rgba(245,158,11,.2);
}

.artikel-name {
    font-weight: 600;
    font-size: .9rem;
    line-height: 1.3;
}

.artikel-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--accent);
    color: #000;
    font-weight: 700;
    font-size: .75rem;
    font-family: var(--font-cond);
    border-radius: 50%;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
}

/* Warenkorb */
.warenkorb-panel {
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: calc(100vh - 73px);
}

.warenkorb-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}
.warenkorb-header h3 {
    font-size: 1.1rem;
    flex: 1;
}
.warenkorb-count {
    background: var(--accent);
    color: #000;
    font-weight: 700;
    font-size: .8rem;
    border-radius: 50px;
    padding: 2px 10px;
    font-family: var(--font-cond);
}

.warenkorb-items {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.wk-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.wk-item-name {
    flex: 1;
    font-size: .9rem;
    font-weight: 500;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.menge-control {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}
.menge-btn {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: none;
    background: var(--numpad-btn);
    color: var(--text);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    touch-action: manipulation;
}
.menge-btn:active { transform: scale(.88); background: var(--accent); color: #000; }
.menge-btn.minus:active { background: var(--danger); color: #fff; }

.menge-zahl {
    min-width: 30px;
    text-align: center;
    font-family: var(--font-cond);
    font-size: 1.1rem;
    font-weight: 700;
}

.warenkorb-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 12px;
    font-size: .9rem;
}
.warenkorb-empty i { font-size: 2.5rem; opacity: .3; }

.warenkorb-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Warteschlange Vorschau */
.wq-preview {
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    border: 1px solid var(--border);
}
.wq-preview-title {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-weight: 600;
}
.wq-preview-item {
    font-size: .85rem;
    color: var(--text-dim);
    display: flex;
    justify-content: space-between;
}

/* ── Timeout Banner ── */
.timeout-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--danger);
    color: #fff;
    text-align: center;
    padding: 10px;
    font-weight: 600;
    z-index: 9999;
    display: none;
    font-size: .95rem;
}
.timeout-banner.show { display: block; }

/* ── Success Toast ── */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--success);
    color: #fff;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: .95rem;
    z-index: 9999;
    transition: transform .3s cubic-bezier(.34,1.56,.64,1);
    white-space: nowrap;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 8px;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Utility ── */
.text-muted { color: var(--text-muted); }
.fw-600 { font-weight: 600; }
.text-center { text-align: center; }
.mt-auto { margin-top: auto; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE – Mobile / iPhone
   Raspberry-Layout bleibt unverändert, nur Overrides hier
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 680px) {
    .mobile-hidden { display: none !important; }

    /* ── Topbar ── */
    .topbar {
        padding: 10px 14px;
        gap: 8px;
    }
    .topbar-logo { font-size: 1.1rem; }
    .topbar-actions { gap: 6px; }
    .topbar-actions .btn {
        padding: 8px 12px;
        font-size: .85rem;
        gap: 5px;
    }
    /* Abmelden-Text ausblenden, nur Icon */
    .topbar-actions .btn i + * { display: none; }

    /* ── Buchen-Layout: Warenkorb-Panel komplett ausblenden ── */
    .page-buchen { grid-template-columns: 1fr; }
    .warenkorb-panel { display: none; }

    /* Artikel-Panel: volle Höhe, Platz für floating Button */
    .artikel-panel {
        padding: 12px;
        padding-bottom: 90px;
        gap: 10px;
    }

    /* Artikel-Grid: 2 Spalten */
    .artikel-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .artikel-card { padding: 14px 10px; gap: 7px; }
    .artikel-icon { width: 48px; height: 48px; font-size: 1.3rem; border-radius: 10px; }
    .artikel-name { font-size: .78rem; }
    .artikel-section-title { font-size: .8rem; }

    /* ── Floating Warenkorb-Button ── */
    .mobile-wk-btn {
        display: flex !important;
    }

    /* ── Scan-Modal ── */
    #scanModal { padding-top: 20px; align-items: flex-start; }

    /* ── Einheiten-Modal ── */
    #einheitModal > div { padding: 24px 20px; }
    .btn-xl { padding: 16px 20px; min-height: 60px; }
}

/* Floating Button: standardmäßig versteckt, nur mobile sichtbar */
.mobile-wk-btn {
    display: none;
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    align-items: center;
    gap: 12px;
    background: var(--accent);
    color: #000;
    font-family: var(--font-cond);
    font-size: 1.1rem;
    font-weight: 700;
    padding: 16px 32px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(245,158,11,.4);
    touch-action: manipulation;
    white-space: nowrap;
    transition: transform .15s ease, box-shadow .15s ease;
}
.mobile-wk-btn:active {
    transform: translateX(-50%) scale(.95);
    box-shadow: 0 4px 12px rgba(245,158,11,.3);
}
.mobile-wk-badge {
    background: #000;
    color: var(--accent);
    font-size: .85rem;
    font-weight: 700;
    border-radius: 50px;
    padding: 2px 10px;
    min-width: 28px;
    text-align: center;
}

/* ── Mobile Warenkorb-Modal ── */
.mobile-wk-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 250;
    background: var(--overlay);
    align-items: flex-end;
    justify-content: center;
}
.mobile-wk-modal.open { display: flex; }
.mobile-wk-sheet {
    background: var(--bg-card);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    width: 100%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 -8px 40px rgba(0,0,0,.4);
    animation: slideUp .25s cubic-bezier(.4,0,.2,1);
}
@keyframes slideUp {
    from { transform: translateY(100%); }
    to   { transform: translateY(0); }
}
.mobile-wk-sheet-header {
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.mobile-wk-sheet-header::before {
    content: '';
    display: block;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
}
.mobile-wk-sheet-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.mobile-wk-sheet-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

/* ── Kunden-Liste (index.php) ── */
.page-kunden { max-width: 680px; }

.kunden-liste {
    flex: 1;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: var(--shadow);
    min-height: 0;
}

.kunden-liste-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background var(--transition);
    text-decoration: none;
    color: var(--text);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.kunden-liste-item:last-child { border-bottom: none; }

.kunden-liste-item:hover,
.kunden-liste-item:active { background: var(--bg-hover); }