/* ================================================================
       TOKENS — edit palette, password, and WhatsApp in one place
    ================================================================ */
    :root {
        --dark-base:      #080f1e;
        --dark-surface:   #0e1829;
        --dark-elevated:  #152035;
        --dark-border:    rgba(255,255,255,0.08);

        --cyan:           #06B6D4;
        --cyan-dim:       rgba(6,182,212,0.10);
        --cyan-glow:      0 0 32px rgba(6,182,212,0.20);

        --text-primary:   #f0f4ff;
        --text-secondary: #8b9ab8;
        --text-muted:     #4e5f7a;

        --error:          #ff5e7a;
        --error-dim:      rgba(255,94,122,0.12);

        --r-card:  16px;
        --r-input: 10px;
        --r-btn:   10px;

        --font: 'Outfit', 'Segoe UI', system-ui, sans-serif;
    }

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

    html, body { min-height: 100%; background-color: var(--dark-base); }

    body {
        font-family: var(--font);
        color: var(--text-primary);
        line-height: 1.6;
        padding: 24px 16px 60px;
        background-image:
            linear-gradient(rgba(0,229,210,0.025) 1px, transparent 1px),
            linear-gradient(90deg, rgba(0,229,210,0.025) 1px, transparent 1px);
        background-size: 40px 40px;
    }

    /* ================================================================
       SHARED ANIMATIONS
    ================================================================ */
    @keyframes fadeUp {
        from { opacity: 0; transform: translateY(16px); }
        to   { opacity: 1; transform: translateY(0); }
    }

    @keyframes sacudir {
        0%,100% { transform: translateX(0);    }
        20%     { transform: translateX(-6px); }
        40%     { transform: translateX(6px);  }
        60%     { transform: translateX(-4px); }
        80%     { transform: translateX(4px);  }
    }

    /* ================================================================
       SHARED BUTTONS
    ================================================================ */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        padding: 13px 20px;
        border: none;
        border-radius: var(--r-btn);
        font-family: var(--font);
        font-size: 0.88rem;
        font-weight: 700;
        letter-spacing: 0.5px;
        text-transform: uppercase;
        cursor: pointer;
        text-decoration: none;
        transition: opacity 0.15s, transform 0.12s, box-shadow 0.15s;
    }

    .btn svg { flex-shrink: 0; width: 17px; height: 17px; fill: currentColor; }

    .btn:hover:not(:disabled) {
        opacity: 0.88;
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    }

    .btn:active:not(:disabled) { transform: translateY(0); box-shadow: none; }
    .btn:disabled { opacity: 0.5; cursor: not-allowed; }

    .btn-cyan {
        background: var(--cyan);
        color: var(--dark-base);
        box-shadow: 0 4px 22px rgba(0,229,210,0.25);
    }

    .btn-cyan:hover:not(:disabled) { box-shadow: 0 6px 28px rgba(0,229,210,0.38); }

    .btn-ghost {
        background: var(--dark-elevated);
        color: var(--text-secondary);
        border: 1.5px solid var(--dark-border);
    }

    .btn-ghost:hover:not(:disabled) { border-color: rgba(0,229,210,0.4); color: var(--cyan); }

    .btn-wa {
        background: #25D366;
        color: #fff;
        box-shadow: 0 4px 16px rgba(37,211,102,0.22);
    }

    .btn-danger {
        background: linear-gradient(135deg, #e91e63, #c2185b);
        color: #fff;
        box-shadow: 0 4px 18px rgba(233,30,99,0.25);
    }

    .btn-sm { font-size: 0.78rem; padding: 10px 14px; }


    /* ================================================================
       PASSWORD SCREEN
    ================================================================ */
    #pantallaAcceso {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: calc(100vh - 80px);
        animation: fadeUp 0.5s ease both;
    }

    .acceso-card {
        width: 100%;
        max-width: 420px;
        background: var(--dark-surface);
        border: 1px solid var(--dark-border);
        border-radius: var(--r-card);
        padding: 44px 36px 36px;
        box-shadow: 0 24px 64px rgba(0,0,0,0.5), var(--cyan-glow);
        position: relative;
        overflow: hidden;
    }

    .acceso-card::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0;
        height: 3px;
        background: linear-gradient(90deg, transparent, var(--cyan) 50%, transparent);
    }

    .acceso-marca { text-align: center; margin-bottom: 32px; }

    .acceso-logo-wrap {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 64px;
        height: 64px;
        background: var(--cyan-dim);
        border: 1px solid rgba(0,229,210,0.25);
        border-radius: 14px;
        margin-bottom: 18px;
    }

    .acceso-logo-wrap svg { width: 32px; height: 32px; fill: var(--cyan); }

    .acceso-nombre {
        font-size: 1.55rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        color: var(--text-primary);
        margin-bottom: 4px;
    }

    .acceso-nombre span { color: var(--cyan); }

    .acceso-titulo {
        font-size: 0.7rem;
        font-weight: 700;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 8px;
    }

    .acceso-subtitulo {
        font-size: 0.83rem;
        color: var(--text-muted);
        line-height: 1.5;
    }

    .acceso-campo { margin-bottom: 14px; }

    .acceso-campo > label {
        display: block;
        font-size: 0.72rem;
        font-weight: 700;
        color: var(--text-secondary);
        text-transform: uppercase;
        letter-spacing: 0.7px;
        margin-bottom: 8px;
    }

    .input-pass-wrap { position: relative; }

    .acceso-campo input {
        width: 100%;
        padding: 12px 44px 12px 14px;
        background: var(--dark-elevated);
        border: 1.5px solid var(--dark-border);
        border-radius: var(--r-input);
        color: var(--text-primary);
        font-family: var(--font);
        font-size: 1rem;
        letter-spacing: 2px;
        outline: none;
        transition: border-color 0.2s, box-shadow 0.2s;
    }

    .acceso-campo input:focus {
        border-color: var(--cyan);
        box-shadow: 0 0 0 3px rgba(0,229,210,0.10);
    }

    .acceso-campo input.campo-error {
        border-color: var(--error);
        box-shadow: 0 0 0 3px var(--error-dim);
    }

    .toggle-pass {
        position: absolute;
        right: 12px;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        cursor: pointer;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        padding: 4px;
        transition: color 0.2s;
    }

    .toggle-pass:hover { color: var(--cyan); }
    .toggle-pass svg { width: 18px; height: 18px; fill: currentColor; }

    .acceso-error {
        display: none;
        background: var(--error-dim);
        border: 1px solid rgba(255,94,122,0.28);
        border-radius: var(--r-input);
        padding: 11px 14px;
        margin-bottom: 14px;
        font-size: 0.83rem;
        color: var(--error);
        animation: sacudir 0.35s ease;
    }

    .acceso-wa {
        display: none;
        margin-top: 20px;
        padding-top: 18px;
        border-top: 1px solid var(--dark-border);
        text-align: center;
    }

    .acceso-wa p {
        font-size: 0.78rem;
        color: var(--text-muted);
        margin-bottom: 12px;
        line-height: 1.55;
    }


    /* ================================================================
       CALCULATOR CONTAINER
    ================================================================ */
    #contenedorPrincipal {
        display: none;
        max-width: 620px;
        margin: 0 auto;
        animation: fadeUp 0.4s ease both;
    }

    /* Header */
    #encabezadoCotizador {
        display: none;
        align-items: center;
        gap: 16px;
        margin-bottom: 24px;
        padding: 22px 26px;
        background: var(--dark-surface);
        border: 1px solid var(--dark-border);
        border-radius: var(--r-card);
        position: relative;
        overflow: hidden;
    }

    #encabezadoCotizador::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--cyan) 50%, transparent);
    }

    .logo-icono {
        flex-shrink: 0;
        width: 52px;
        height: 52px;
        fill: var(--cyan);
        background: var(--cyan-dim);
        border: 1px solid rgba(0,229,210,0.2);
        border-radius: 12px;
        padding: 10px;
    }

    #tituloPrincipal {
        font-size: 1.2rem;
        font-weight: 800;
        letter-spacing: -0.3px;
        color: var(--text-primary);
        margin-bottom: 2px;
    }

    #tituloPrincipal span { color: var(--cyan); }
    #subtituloPrincipal { font-size: 0.78rem; color: var(--text-muted); }

    /* Form card */
    #formularioImagen {
        background: var(--dark-surface);
        border: 1px solid var(--dark-border);
        border-radius: var(--r-card);
        padding: 28px;
        margin-bottom: 20px;
    }

    #formularioImagen label {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-top: 22px;
        margin-bottom: 7px;
        font-size: 0.7rem;
        font-weight: 700;
        color: var(--text-secondary);
        text-transform: uppercase;
        letter-spacing: 0.7px;
    }

    #formularioImagen label:first-of-type { margin-top: 0; }

    #formularioImagen label svg {
        flex-shrink: 0;
        width: 14px;
        height: 14px;
        fill: var(--cyan);
    }

    .guia-archivo {
        display: block;
        font-size: 0.74rem;
        color: var(--text-muted);
        margin-top: -4px;
        margin-bottom: 4px;
    }

    #formularioImagen input[type="file"],
    #formularioImagen input[type="text"],
    #formularioImagen input[type="number"],
    #formularioImagen select {
        width: 100%;
        padding: 11px 14px;
        background: var(--dark-elevated);
        border: 1.5px solid var(--dark-border);
        border-radius: var(--r-input);
        color: var(--text-primary);
        font-family: var(--font);
        font-size: 0.95rem;
        margin-bottom: 4px;
        outline: none;
        -webkit-appearance: none;
        appearance: none;
        transition: border-color 0.2s, box-shadow 0.2s;
    }

    #formularioImagen select {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%238b9ab8' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 14px center;
        padding-right: 36px;
        cursor: pointer;
    }

    #formularioImagen select option { background: #152035; color: var(--text-primary); }

    #formularioImagen input[type="file"] { color: var(--text-secondary); font-size: 0.84rem; }

    #formularioImagen input:focus,
    #formularioImagen select:focus {
        border-color: var(--cyan);
        box-shadow: 0 0 0 3px rgba(0,229,210,0.08);
    }

    .input-error {
        border-color: var(--error) !important;
        box-shadow: 0 0 0 3px var(--error-dim) !important;
    }

    .mensaje-error {
        display: block;
        color: var(--error);
        font-size: 0.74rem;
        margin-top: 3px;
        margin-bottom: 6px;
    }

    /* Medidas side-by-side */
    .grupo-medidas { display: flex; gap: 12px; margin-bottom: 4px; }
    .grupo-medidas input { width: 50%; min-width: 0; margin-bottom: 0; }

    /* Cantidad control */
    #control-cantidad { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }

    #control-cantidad input[type="number"] {
        flex: 1;
        min-width: 0;
        text-align: center;
        margin-bottom: 0;
        font-size: 1.05rem;
        font-weight: 600;
    }

    .btn-cantidad {
        flex-shrink: 0;
        width: 42px;
        height: 42px;
        background: var(--dark-elevated);
        border: 1.5px solid var(--dark-border);
        border-radius: var(--r-input);
        color: var(--cyan);
        font-size: 1.3rem;
        font-weight: 700;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background 0.15s, border-color 0.15s;
        line-height: 1;
    }

    .btn-cantidad:hover { background: var(--cyan-dim); border-color: rgba(0,229,210,0.35); }

    #formularioImagen .btn { margin-top: 18px; }

    /* Live price preview */
    #precioAproximado {
        display: none;
        text-align: center;
        padding: 13px;
        margin-top: 14px;
        background: rgba(0,229,210,0.06);
        border: 1.5px solid rgba(0,229,210,0.25);
        border-radius: var(--r-input);
        color: var(--cyan);
        font-size: 1rem;
        font-weight: 700;
        letter-spacing: 0.3px;
        animation: fadeUp 0.2s ease both;
    }

    /* Current item result */
    #cotizacionActual { margin-top: 20px; }

    .resultado-activo {
        background: var(--dark-surface);
        border: 1px solid rgba(0,229,210,0.22);
        border-radius: var(--r-card);
        padding: 22px;
        animation: fadeUp 0.25s ease both;
    }

    #cotizacionActual h2 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--cyan);
        text-align: center;
        margin-bottom: 14px;
    }

    .detalle-complemento {
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid var(--dark-border);
        font-size: 0.86rem;
    }

    .resultado-linea {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        gap: 12px;
        padding: 6px 0;
        border-bottom: 1px solid rgba(255,255,255,0.04);
    }

    .resultado-linea:last-child { border-bottom: none; }
    .resultado-etiqueta { color: var(--text-muted); font-weight: 500; white-space: nowrap; }
    .resultado-valor { color: var(--text-primary); font-weight: 600; text-align: right; }

    /* History */
    #historialResultados {
        margin-top: 24px;
        padding-top: 22px;
        border-top: 1px solid var(--dark-border);
    }

    #historialResultados > h3 {
        font-size: 0.68rem;
        text-transform: uppercase;
        letter-spacing: 0.9px;
        color: var(--text-muted);
        font-weight: 700;
        margin-bottom: 14px;
    }

    .cotizacion-archivada {
        background: var(--dark-elevated);
        border: 1px solid var(--dark-border);
        border-left: 3px solid var(--cyan);
        border-radius: var(--r-input);
        padding: 12px 15px;
        margin-bottom: 10px;
    }

    .cotizacion-archivada h3 { font-size: 0.93rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
    .cotizacion-archivada h3 span { color: var(--cyan); }
    .cotizacion-archivada p { font-size: 0.8rem; color: var(--text-muted); }

    .item-historial {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .miniatura-item {
        width: 56px;
        height: 56px;
        object-fit: cover;
        border-radius: 10px;
        border: 1px solid var(--dark-border);
        background: var(--dark-surface);
        flex-shrink: 0;
    }

    .item-historial-info {
        flex: 1;
        min-width: 0;
    }

    .item-historial-top {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 4px;
    }

    .nombre-item {
        flex: 1;
        min-width: 0;
        background: transparent;
        border: none;
        border-bottom: 1px dashed transparent;
        color: var(--text-primary);
        font-family: var(--font);
        font-size: 0.93rem;
        font-weight: 700;
        outline: none;
        padding: 2px 0;
    }

    .nombre-item:hover,
    .nombre-item:focus {
        border-bottom-color: rgba(255,255,255,0.18);
    }

    .precio-item {
        color: var(--cyan);
        font-weight: 800;
        white-space: nowrap;
        font-size: 0.93rem;
    }

    .btn-eliminar-item {
        flex-shrink: 0;
        width: 32px;
        height: 32px;
        border-radius: 8px;
        border: 1px solid rgba(255,255,255,0.08);
        background: rgba(255,255,255,0.03);
        color: var(--text-muted);
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition: all 0.18s ease;
        padding: 0;
    }

    .btn-eliminar-item:hover {
        color: #ff5e7a;
        border-color: rgba(255,94,122,0.32);
        background: rgba(255,94,122,0.10);
    }

    .btn-eliminar-item svg {
        width: 16px;
        height: 16px;
        fill: currentColor;
    }

    .total-general-wrapper {
        margin-top: 14px;
        padding-top: 14px;
        border-top: 2px solid rgba(0,229,210,0.28);
        text-align: right;
    }

    .total-general-wrapper h3 {
        font-size: 1.65rem;
        font-weight: 800;
        color: var(--cyan);
        letter-spacing: -0.5px;
    }

    /* Final actions */
    #accionesFinales {
        display: none;
        gap: 10px;
        margin-top: 22px;
        padding-top: 18px;
        border-top: 1px solid var(--dark-border);
    }

    #accionesFinales .btn { width: 50%; margin-top: 0; padding: 11px 8px; font-size: 0.74rem; }

    #terminarCotizacionBoton { display: none; margin-top: 14px; font-size: 0.92rem; }

    .app-footer {
        text-align: center;
        font-size: 0.7rem;
        color: var(--text-muted);
        margin-top: 28px;
        padding-top: 14px;
        border-top: 1px solid var(--dark-border);
    }

    /* ================================================================
       MODAL
    ================================================================ */
    .modal-fondo {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.72);
        display: none;
        justify-content: center;
        align-items: center;
        z-index: 1000;
        padding: 16px;
        backdrop-filter: blur(4px);
    }

    .modal-contenido {
        background: var(--dark-surface);
        border: 1px solid var(--dark-border);
        border-radius: var(--r-card);
        padding: 36px 30px;
        max-width: 400px;
        width: 100%;
        text-align: center;
        box-shadow: 0 24px 64px rgba(0,0,0,0.65);
        animation: fadeUp 0.3s ease both;
        position: relative;
        overflow: hidden;
    }

    .modal-contenido::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--cyan) 50%, transparent);
    }

    .modal-contenido h3 { color: var(--text-primary); font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
    .modal-contenido p  { color: var(--text-secondary); margin-bottom: 24px; font-size: 0.88rem; line-height: 1.65; }

    #modalCerrarBoton {
        background: var(--cyan);
        color: var(--dark-base);
        border: none;
        padding: 11px 32px;
        border-radius: var(--r-btn);
        font-family: var(--font);
        font-size: 0.85rem;
        font-weight: 700;
        cursor: pointer;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        transition: opacity 0.15s;
    }

    #modalCerrarBoton:hover { opacity: 0.85; }

    /* ================================================================
       html2canvas template (white export)
    ================================================================ */
    .descarga-contenedor {
        position: relative;
        padding: 28px;
        background: white;
        border-radius: 14px;
        width: fit-content;
        max-width: 600px;
        font-family: var(--font);
    }

    .logo-descarga {
        position: absolute;
        top: 20px; right: 20px;
        width: 48px; height: 48px;
        fill: #080f1e;
    }

    .claim-descarga {
        font-size: 0.74rem;
        color: #888;
        text-align: center;
        margin-top: 18px;
        padding-top: 12px;
        border-top: 1px solid #eee;
        font-style: italic;
    }

    /* ================================================================
       RESPONSIVE
    ================================================================ */
    @media (max-width: 480px) {
        .acceso-card { padding: 32px 20px 28px; }
        #formularioImagen { padding: 20px 16px; }
        .grupo-medidas { flex-direction: column; gap: 6px; }
        .grupo-medidas input { width: 100%; }
        #accionesFinales .btn { font-size: 0.68rem; padding: 9px 6px; }
        #tituloPrincipal { font-size: 1.05rem; }
    }

    /* ================================================================
       PRINT
    ================================================================ */
    @media print {
        button, .app-footer, #accionesFinales,
        #precioAproximado, #formularioImagen,
        #cotizacionActual, #pantallaAcceso { display: none !important; }
        body { background: white !important; color: black !important;
               padding: 0 !important; background-image: none !important; }
        #contenedorPrincipal { max-width: none !important; padding: 0 !important; }
        #historialResultados { border-top: none !important; padding-top: 0 !important; }
    }