/* =====================================================
   CodePrinter - Estilos de la webapp
   ===================================================== */

/* ---------- Variables de tema (claro por defecto) ---------- */
:root {
    --bg-body: #002E46;
    --bg-card: #ffffff;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --border: #e2e8f0;
    --input-bg: #f7fafc;
    --input-bg-focus: #ffffff;
    --accent: #0E7490;
    --accent-soft: #e6f4f8;
    --hover-bg: #edf2f7;
    --hover-border: #cbd5e0;
    --preview-bg: #e2e8f0;
    --card-divider: #edf2f7;
    --header-text: #ffffff;
    --footer-text: rgba(255,255,255,0.85);
    --msg-info-bg: #ebf8ff;
    --msg-info-text: #2c5282;
    --msg-info-border: #4299e1;
    --msg-success-bg: #f0fff4;
    --msg-success-text: #22543d;
    --msg-success-border: #48bb78;
    --msg-error-bg: #fff5f5;
    --msg-error-text: #742a2a;
    --msg-error-border: #f56565;
    --shadow-card: 0 10px 30px rgba(0,0,0,0.15);
}

[data-theme="dark"] {
    --bg-body: #0b1a24;
    --bg-card: #16222e;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border: #2d3f4d;
    --input-bg: #0f1a24;
    --input-bg-focus: #1a2a38;
    --accent: #22b8d4;
    --accent-soft: rgba(34,184,212,0.15);
    --hover-bg: #22333f;
    --hover-border: #3b5263;
    --preview-bg: #0f1a24;
    --card-divider: #2d3f4d;
    --header-text: #ffffff;
    --footer-text: rgba(255,255,255,0.6);
    --msg-info-bg: rgba(66,153,225,0.15);
    --msg-info-text: #90cdf4;
    --msg-info-border: #4299e1;
    --msg-success-bg: rgba(72,187,120,0.15);
    --msg-success-text: #9ae6b4;
    --msg-success-border: #48bb78;
    --msg-error-bg: rgba(245,101,101,0.15);
    --msg-error-text: #feb2b2;
    --msg-error-border: #f56565;
    --shadow-card: 0 10px 30px rgba(0,0,0,0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-body);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px;
}

/* ---------- Header ---------- */
header {
    position: relative;
    text-align: center;
    color: var(--header-text);
    margin-bottom: 24px;
    padding: 20px 0;
}

.header-actions {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
    z-index: 10;
}

.header-actions .theme-toggle {
    position: static;
}

/* Botón de cambio de tema (sol/luna) */
.theme-toggle {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.35);
    background: rgba(255,255,255,0.12);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, transform 0.2s, border-color 0.2s;
    z-index: 10;
}

.theme-toggle:hover {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.6);
    transform: scale(1.08);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* En modo claro se muestra la luna (para ir a oscuro) y viceversa */
.theme-toggle .icono-sol { display: none; }
.theme-toggle .icono-luna { display: block; }

[data-theme="dark"] .theme-toggle .icono-sol { display: block; }
[data-theme="dark"] .theme-toggle .icono-luna { display: none; }

header .logo {
    display: block;
    max-width: 220px;
    height: auto;
    margin: 0 auto 10px;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 6px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

/* ---------- Estado del printer (chip bajo el subtítulo) ---------- */
.printer-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 999px;
    font-size: 0.85rem;
    color: #fff;
    cursor: help;
}

.printer-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #48bb78;
    box-shadow: 0 0 6px rgba(72,187,120,0.8);
}

.printer-status.mode-android .printer-status-dot {
    background: #38b2ac;
    box-shadow: 0 0 6px rgba(56,178,172,0.8);
}

.printer-status.mode-error .printer-status-dot {
    background: #f56565;
    box-shadow: 0 0 6px rgba(245,101,101,0.8);
}

/* ---------- Cards ---------- */
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-card);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.card h2 {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--card-divider);
}

/* ---------- Form ---------- */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px 14px;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.3s;
    background: var(--input-bg);
    color: var(--text-primary);
}

input[type="text"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--input-bg-focus);
    box-shadow: 0 0 0 3px rgba(14,116,144,0.15);
}

/* ---------- Input con botón de escaneo ---------- */
.input-group {
    display: flex;
    gap: 8px;
}

.input-group input[type="text"] {
    flex: 1;
    min-width: 0;
}

.btn-scan {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--accent);
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s, transform 0.1s;
}

.btn-scan:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.btn-scan:active {
    transform: scale(0.95);
}

/* ---------- Modal del escáner QR ---------- */
.scan-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.75);
    padding: 20px;
}

.scan-modal.hidden {
    display: none;
}

.scan-modal-content {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-card);
}

.btn-scan-close {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.btn-scan-close:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.btn-scan-close:active {
    transform: scale(0.95);
}

/* ---------- Modal de Ajustes ---------- */
.settings-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.75);
    padding: 20px;
}

.settings-modal.hidden {
    display: none;
}

.settings-modal-content {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 460px;
    box-shadow: var(--shadow-card);
}

.settings-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.settings-modal-header h2 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    border-bottom: none;
}

.settings-modal-content small {
    display: block;
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.settings-modal-content code {
    background: var(--accent-soft);
    color: var(--accent);
    padding: 1px 6px;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.85rem;
}

.settings-modal-content .actions {
    margin-top: 18px;
}

.settings-modal-content .mensaje {
    margin-top: 12px;
}

.scan-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.scan-modal-header h2 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    border: none;
}

.btn-scan-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    background: var(--hover-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.btn-scan-close:hover {
    background: var(--msg-error-bg);
    color: var(--msg-error-text);
}

.qr-reader {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    background: #000;
}

.qr-reader video {
    width: 100% !important;
    height: auto !important;
    object-fit: cover;
}

.scan-hint {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* ---------- Radio buttons ---------- */
.radio-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--input-bg);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
    min-width: 160px;
}

.radio-label:hover {
    border-color: var(--hover-border);
    background: var(--hover-bg);
}

.radio-label input[type="radio"] {
    accent-color: var(--accent);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.radio-label input[type="radio"]:checked + span {
    color: var(--accent);
    font-weight: 600;
}

.radio-label:has(input:checked) {
    border-color: var(--accent);
    background: var(--accent-soft);
}

/* ---------- Buttons ---------- */
.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.btn {
    flex: 1;
    min-width: 140px;
    padding: 12px 20px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.2s, opacity 0.2s, background-color 0.2s;
    color: #fff;
}

.btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Colores base + hover con tono más claro */
.btn-primary  { background: #0E7490; }
.btn-primary:hover:not(:disabled)  { background: #1496B8; }

.btn-secondary{ background: #64748B; }
.btn-secondary:hover:not(:disabled){ background: #7E8FA6; }

.btn-success  { background: #16A34A; }
.btn-success:hover:not(:disabled)  { background: #22C55E; }

.btn-danger   { background: #DC2626; }
.btn-danger:hover:not(:disabled)   { background: #EF4444; }

/* ---------- Messages ---------- */
.mensaje {
    margin-top: 14px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.95rem;
    display: none;
}

.mensaje.show { display: block; }

.mensaje.info    { background: var(--msg-info-bg); color: var(--msg-info-text); border-left: 4px solid var(--msg-info-border); }
.mensaje.success { background: var(--msg-success-bg); color: var(--msg-success-text); border-left: 4px solid var(--msg-success-border); }
.mensaje.error   { background: var(--msg-error-bg); color: var(--msg-error-text); border-left: 4px solid var(--msg-error-border); }

/* ---------- Etiqueta preview (392x240 dots exacto 1:1) ---------- */
.etiqueta-section.hidden { display: none; }

.etiqueta-preview-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    padding: 16px 10px;
    background: var(--preview-bg);
    border-radius: 12px;
    overflow: hidden;
    width: 100%;
    transition: background-color 0.3s ease;
}

.thermal-label-scaler {
    width: 392px;
    height: 240px;
    display: block;
    position: relative;
    overflow: visible;
}

.thermal-label-exact {
    position: absolute;
    left: 0;
    top: 0;
    width: 392px;
    height: 240px;
    background: #ffffff;
    border: 2px solid #000000;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    font-family: "Courier New", Courier, monospace;
    color: #000000;
    box-sizing: border-box;
    overflow: hidden;
    user-select: none;
    transition: transform 0.15s ease-out;
}

.lbl-exact-title-container {
    position: absolute;
    left: 10px;
    top: 6px;
    width: 370px;
    height: 48px; /* 48 dots = 6 mm exactos */
}

.lbl-full-title {
    position: absolute;
    left: 0;
    width: 100%;
    font-family: "Courier New", Courier, monospace;
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    height: 17px;
    letter-spacing: 0;
    color: #000000;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lbl-exact-qr-row {
    position: absolute;
    left: 10px;
    top: 54px;
    width: 370px;
    height: 84px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.lbl-exact-qr-box {
    width: 84px;
    height: 84px;
    flex-shrink: 0;
}

.lbl-exact-unidad-box {
    font-family: "Courier New", Courier, monospace;
    font-size: 14px;
    font-weight: 700;
    color: #000000;
    white-space: nowrap;
}

.lbl-exact-barcode-full {
    position: absolute;
    left: 8px;
    top: 145px;
    height: 36px;
}

.lbl-exact-bottom-row-full {
    position: absolute;
    right: 16px;
    top: 216px;
    height: 28px;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    gap: 12px;
}

.lbl-exact-prefix {
    font-family: "Courier New", Courier, monospace;
    font-size: 14px;
    font-weight: 700;
    line-height: 20px;
    color: #000000;
    white-space: nowrap;
}

.lbl-exact-number {
    font-family: "Courier New", Courier, monospace;
    font-size: 20px;
    font-weight: 900;
    line-height: 24px;
    color: #000000;
    white-space: nowrap;
    letter-spacing: 0.5px;
}

.cantidad-group {
    max-width: 200px;
}

/* ---------- Footer ---------- */
footer {
    text-align: center;
    color: var(--footer-text);
    padding: 20px 0;
    font-size: 0.9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
    .container {
        padding: 12px 8px;
    }

    header {
        padding: 10px 0;
        margin-bottom: 14px;
    }

    .theme-toggle {
        top: 8px;
        right: 8px;
        width: 40px;
        height: 40px;
    }

    header h1 {
        font-size: 1.6rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .card {
        padding: 16px 12px;
        border-radius: 10px;
        margin-bottom: 14px;
    }

    .card h2 {
        font-size: 1.05rem;
        margin-bottom: 12px;
        padding-bottom: 8px;
    }

    .etiqueta-preview-wrapper {
        padding: 12px 4px;
        border-radius: 8px;
        margin-bottom: 14px;
    }

    .radio-label {
        min-width: 100%;
        padding: 8px 12px;
    }

    .btn {
        min-width: 100%;
        padding: 12px 16px;
    }

    .cantidad-group {
        max-width: 100%;
    }

    input[type="text"],
    input[type="number"] {
        font-size: 16px; /* Evita que Safari en iOS haga zoom automático */
    }

    .scan-modal {
        padding: 10px;
    }

    .scan-modal-content {
        padding: 14px;
    }
}