/* ===================================================
   app.css — Base PWA Onboarding
   Variables CSS tenant-aware + estilos base
   =================================================== */

/* ---------- Reset y base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-family, 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
    background: var(--bg-app, #F4F6F9);
    color: var(--text-primary, #1A2332);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ---------- Variables CSS por defecto (se sobreescriben con branding) ---------- */
:root {
    --color-primary:     #4338CA;
    --color-primary-dk:  #3730A3;
    --color-primary-lt:  #EEEDF9;
    --color-secondary:   #5B5987;
    --color-success:     #0F766E;
    --color-warning:     #D97706;
    --color-error:       #DC2626;
    --color-error-bg:    #FEF2F2;
    --bg-app:            #EEEDF9;
    --bg-card:           #FFFFFF;
    --text-primary:      #1E1B4B;
    --text-secondary:    #5B5987;
    --text-muted:        #9B99C3;
    --border-color:      #DDD9F5;
    --border-radius:     12px;
    --border-radius-sm:  8px;
    --shadow-sm:         0 1px 3px rgba(0,0,0,.08);
    --shadow-md:         0 4px 12px rgba(0,0,0,.10);
    --shadow-lg:         0 8px 24px rgba(0,0,0,.12);
    --font-family:       'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition:        0.2s ease;
    --max-width:         480px;
}

/* ---------- Tipografía ---------- */
h1, h2, h3, h4 { line-height: 1.3; }
h1 { font-size: 1.5rem; font-weight: 700; }
h2 { font-size: 1.25rem; font-weight: 600; }
h3 { font-size: 1rem; font-weight: 600; }
p  { line-height: 1.6; }
a  { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Shell de la app ---------- */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------- Header ---------- */
.app-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}
.app-header-logo {
    height: 36px;
    max-width: 120px;
    object-fit: contain;
}
.app-header-name {
    font-size: .875rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

/* ---------- Contenedor principal ---------- */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    width: 100%;
}

/* ---------- Card genérica ---------- */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    width: 100%;
    max-width: var(--max-width);
}

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--border-radius-sm);
    font-size: .9375rem;
    font-weight: 600;
    font-family: inherit;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), opacity var(--transition), transform .1s;
    text-decoration: none;
    line-height: 1;
    min-height: 48px;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dk); border-color: var(--color-primary-dk); }

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}
.btn-secondary:hover:not(:disabled) { background: var(--bg-app); }

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover:not(:disabled) { background: var(--color-primary-lt); }

.btn-full { width: 100%; }
.btn-link {
    background: none; border: none;
    color: var(--color-primary);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    padding: 4px 0;
    font-family: inherit;
}
.btn-link:hover { text-decoration: underline; }

/* ---------- Formularios ---------- */
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: .875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.form-label-strong {
    font-size: .9375rem;
    font-weight: 600;
    color: var(--text-primary);
}
.form-input {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: .9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
    min-height: 48px;
    -webkit-appearance: none;
}
.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:disabled { background: var(--bg-app); cursor: not-allowed; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* ---------- Radios ---------- */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 6px;
}
.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .9375rem;
    cursor: pointer;
    padding: 10px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: border-color var(--transition), background var(--transition);
}
.radio-label:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-lt);
}
.radio-label input[type="radio"] {
    accent-color: var(--color-primary);
    width: 18px; height: 18px;
    flex-shrink: 0;
}

/* ---------- Nested fields ---------- */
.nested-fields {
    margin-top: -4px;
    margin-bottom: 8px;
    padding: 14px;
    background: var(--bg-app);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--color-primary);
}

/* ---------- Mensajes de error ---------- */
.error-text {
    color: var(--color-error);
    background: var(--color-error-bg);
    border: 1px solid rgba(220,38,38,.2);
    border-radius: var(--border-radius-sm);
    padding: 10px 14px;
    font-size: .875rem;
    margin-top: 8px;
}

/* ---------- Info box ---------- */
.step-info-box {
    background: var(--color-primary-lt);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--border-radius-sm);
    padding: 12px 14px;
    font-size: .875rem;
    color: var(--color-primary-dk);
    margin-bottom: 20px;
    line-height: 1.5;
}

/* ---------- Spinner ---------- */
.spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin .8s linear infinite;
    margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px 16px;
    color: var(--text-secondary);
}

/* ---------- Toast / alertas ---------- */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: #1A2332;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: .875rem;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    animation: toast-in .25s ease;
    max-width: calc(100vw - 32px);
    text-align: center;
}
@keyframes toast-in {
    from { opacity: 0; transform: translateX(-50%) translateY(12px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ---------- Badge de estado ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 99px;
    font-size: .75rem;
    font-weight: 600;
}
.badge-success { background: #DCFCE7; color: #15803D; }
.badge-warning { background: #FEF3C7; color: #B45309; }
.badge-error   { background: var(--color-error-bg); color: var(--color-error); }
.badge-info    { background: var(--color-primary-lt); color: var(--color-primary-dk); }

/* ---------- Offline banner ---------- */
.offline-banner {
    background: #FEF3C7;
    color: #92400E;
    padding: 8px 16px;
    text-align: center;
    font-size: .8125rem;
    font-weight: 500;
    display: none;
}
.offline-banner.visible { display: block; }

/* ---------- Responsive ---------- */
@media (min-width: 520px) {
    .app-main { padding: 24px; }
    .card { padding: 32px; }
}