/* =============================================================================
   Taller Industrial - Estilos base (layout + componentes)
   =============================================================================
   Construido sobre los tokens semanticos definidos en tokens.css + paletas.
============================================================================= */

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

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
    line-height: var(--line-height-normal);
    color: var(--color-fg);
    background: var(--color-bg);
    transition: background var(--transition-base), color var(--transition-base);
}

a {
    color: var(--color-link);
    text-decoration: none;
}
a:hover { color: var(--color-link-hover); text-decoration: underline; }

h1, h2, h3, h4 { color: var(--color-fg); margin: 0 0 var(--space-3); line-height: var(--line-height-tight); }
h1 { font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); }
h2 { font-size: var(--font-size-xl); font-weight: var(--font-weight-semibold); }
h3 { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); }

/* ---------------- Layout shell ---------------- */
.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: var(--topbar-height) 1fr;
    grid-template-areas:
        "sidebar topbar"
        "sidebar main";
    /* Alto ACOTADO (no min-height): así la fila "main" (1fr) queda de alto definido y
       SOLO .app-main scrollea internamente (tiene overflow-y:auto). El topbar y el
       sidebar quedan FIJOS al scrollear en vez de irse con el <body>. El sidebar, al
       ser más alto que la pantalla, scrollea por su cuenta (también overflow-y:auto).
       height:100dvh va después para descontar el chrome dinámico del navegador móvil
       (barras que aparecen/desaparecen); navegadores sin dvh usan el 100vh de arriba. */
    height: 100vh;
    height: 100dvh;
}

.app-sidebar {
    grid-area: sidebar;
    background: var(--color-sidebar-bg);
    color: var(--color-sidebar-fg);
    /* Densidad vertical moderada: con el rol admin (el menú más largo, ~23 ítems)
       el sidebar entra sin scroll a 1440×900 en densidad compacta (el default). */
    padding: var(--space-2) 0;
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
}

.app-topbar {
    grid-area: topbar;
    background: var(--color-topbar-bg);
    color: var(--color-topbar-fg);
    border-bottom: 1px solid var(--color-topbar-border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    gap: var(--space-4);
}

.app-main {
    grid-area: main;
    padding: var(--space-6);
    overflow-y: auto;
    scrollbar-gutter: stable;
}

/* Scroll-lock del fondo cuando hay un modal abierto (la clase la togglea base.html).
   El scroll INTERNO del modal (.card__body con overflow) sigue funcionando: es un
   contenedor aparte, no se ve afectado por bloquear el fondo. */
html.has-modal,
html.has-modal body { overflow: hidden; }
html.has-modal .app-main,
html.has-modal .app-sidebar { overflow: hidden; }
/* Evitar que el scroll interno del modal se "encadene" al fondo al llegar al borde. */
.modal-backdrop .card__body { overscroll-behavior: contain; }

/* ---------------- Botón flotante «↑ ir arriba» (global) ----------------
   Vive UNA vez en base.html (singleton). Aparece cuando .app-main está scrolleado
   (lo togglea app.js con la clase .is-shown) y al click lleva .app-main al tope.
   z-index por DEBAJO de los modales (que arrancan en 1000, ver modal-stack.js) para
   que un modal lo tape; además se esconde con html.has-modal. Como está oculto por
   defecto (visibility:hidden) no captura clics ni tapa controles hasta que aparece. */
.scroll-top {
    position: fixed;
    right: var(--space-6);
    bottom: var(--space-6);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-primary);
    color: var(--color-primary-fg);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: 990;
}
.scroll-top.is-shown { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { background: var(--color-primary-strong); }
.scroll-top:focus-visible { outline: 2px solid var(--color-primary-fg); outline-offset: 2px; }
/* Con un modal abierto: fuera (que el modal mande). */
html.has-modal .scroll-top { display: none; }
@media (prefers-reduced-motion: reduce) {
    .scroll-top { transition: opacity var(--transition-base); transform: none; }
    .scroll-top.is-shown { transform: none; }
}
@media print { .scroll-top { display: none !important; } }

/* ---------------- Sidebar ---------------- */
.brand {
    /* boton-link sin estilo nativo de boton */
    width: 100%;
    padding: var(--space-2) var(--space-5) var(--space-3);
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: var(--space-2);
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transition: background var(--transition-fast);
}
.brand:hover {
    background: var(--color-sidebar-bg-active);
}
.brand__texts {
    flex: 1;
    min-width: 0;
}
.brand__title {
    color: var(--color-sidebar-fg-active);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.brand__subtitle {
    font-size: var(--font-size-xs);
    color: var(--color-fg-muted);
    margin-top: var(--space-1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.brand__caret {
    color: var(--color-sidebar-fg);
    font-size: var(--font-size-md);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

/* ---- Estado colapsado ---- */
.app-shell[data-sidebar="collapsed"] {
    grid-template-columns: var(--sidebar-width-collapsed) 1fr;
}
.app-shell[data-sidebar="collapsed"] .app-sidebar {
    overflow-x: hidden;
}
.app-shell[data-sidebar="collapsed"] .brand__texts,
.app-shell[data-sidebar="collapsed"] .brand__caret,
.app-shell[data-sidebar="collapsed"] .nav-section,
.app-shell[data-sidebar="collapsed"] .nav-item__label {
    display: none;
}
.app-shell[data-sidebar="collapsed"] .brand {
    padding: var(--space-3) 0;
    justify-content: center;
}
.app-shell[data-sidebar="collapsed"] .nav-item {
    justify-content: center;
    padding: var(--space-3) 0;
    gap: 0;
}
.app-shell[data-sidebar="collapsed"] .nav-item__icon {
    width: 22px;
    height: 22px;
    font-size: 1.1rem;
}

.nav-section {
    padding: var(--space-1) var(--space-5);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    color: var(--color-fg-subtle);
    margin-top: var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-1) var(--space-5);
    color: var(--color-sidebar-fg);
    border-left: 3px solid transparent;
    transition: background var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
    overflow: hidden;
}
.nav-item:hover {
    background: var(--color-sidebar-bg-active);
    color: var(--color-sidebar-fg-active);
    text-decoration: none;
}
.nav-item--active {
    background: var(--color-sidebar-bg-active);
    color: var(--color-sidebar-fg-active);
    border-left-color: var(--color-primary);
}
.nav-item__icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.nav-item__label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---------------- Topbar ---------------- */
.topbar__title { font-weight: var(--font-weight-semibold); }
.topbar__spacer { flex: 1; }
.topbar__actions { display: flex; gap: var(--space-3); align-items: center; }

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-fg-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
    position: relative;
}
.icon-btn:hover {
    background: var(--color-surface-2);
    color: var(--color-fg);
}
.icon-btn__badge {
    position: absolute;
    top: 4px; right: 4px;
    background: var(--color-danger);
    color: #fff;
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ---------------- Cards / panels ---------------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}
.card__header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.card__title { margin: 0; font-size: var(--font-size-lg); }
.card__body { padding: var(--space-5); }

/* ---------------- Buttons ---------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: var(--density-button-h);
    padding: 0 var(--density-padding-x);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    text-decoration: none;
    line-height: 1;
}
.btn--primary {
    background: var(--color-primary);
    color: var(--color-primary-fg);
}
.btn--primary:hover { background: var(--color-primary-strong); color: var(--color-primary-fg); text-decoration: none; }

.btn--secondary {
    background: var(--color-surface-2);
    color: var(--color-fg);
    border-color: var(--color-border);
}
.btn--secondary:hover { background: var(--color-surface-elevated); text-decoration: none; }

.btn--ghost {
    background: transparent;
    color: var(--color-fg);
    border-color: transparent;
}
.btn--ghost:hover { background: var(--color-surface-2); text-decoration: none; }

.btn--danger {
    background: var(--color-danger);
    color: #fff;
}
.btn--danger:hover { background: #b91c1c; text-decoration: none; }

.btn--success {
    background: var(--color-success);
    color: #fff;
}
.btn--success:hover { background: #15803d; text-decoration: none; }

.btn--warning {
    background: var(--color-warning);
    color: #fff;
}
.btn--warning:hover { filter: brightness(0.9); text-decoration: none; }

/* Variantes de tamaño */
.btn--sm {
    height: 28px;
    padding: 0 var(--space-3);
    font-size: var(--font-size-xs);
}
.btn--lg {
    height: 48px;
    padding: 0 var(--space-6);
    font-size: var(--font-size-md);
}

/* Disabled */
.btn:disabled, .btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ---------------- Forms ---------------- */
.form-group { margin-bottom: var(--space-4); }
.form-label {
    display: block;
    margin-bottom: var(--space-1);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-fg);
}
.form-input, .form-select, .form-textarea,
.input, select.input, textarea.input,
input[type="text"], input[type="number"], input[type="email"],
input[type="password"], input[type="search"], input[type="date"],
input[type="datetime-local"], input[type="time"], input[type="url"],
input[type="tel"], select, textarea {
    width: 100%;
    height: var(--density-input-h);
    padding: 0 var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-fg);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
textarea, .form-textarea {
    height: auto;
    min-height: 80px;
    padding: var(--space-2) var(--space-3);
}
.input--sm, select.input--sm, input.input--sm {
    height: 28px;
    padding: 0 var(--space-2);
    font-size: var(--font-size-xs);
}
/* Inputs no deben heredar width:100% en flex containers chicos. Permitir override por estilo inline. */
input[type="checkbox"], input[type="radio"] {
    width: auto;
    height: auto;
    padding: 0;
    background: transparent;
    border: none;
}
.form-textarea {
    height: auto;
    padding: var(--space-2) var(--space-3);
    min-height: 80px;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}
.form-help { font-size: var(--font-size-xs); color: var(--color-fg-muted); margin-top: var(--space-1); }
.form-error { color: var(--color-danger); font-size: var(--font-size-xs); margin-top: var(--space-1); }

/* ---------------- Tables ---------------- */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}
.table th {
    text-align: left;
    padding: var(--space-3);
    background: var(--color-surface-2);
    border-bottom: 1px solid var(--color-border-strong);
    font-weight: var(--font-weight-semibold);
    color: var(--color-fg);
}
.table td {
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-fg);
    height: var(--density-row-h);
}
.table tbody tr:hover { background: var(--color-surface-2); }

/* ---------------- Badges ---------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    background: var(--color-surface-2);
    color: var(--color-fg);
}
.badge--success { background: var(--color-success-bg); color: var(--color-success); }
.badge--warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge--danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge--info { background: var(--color-info-bg); color: var(--color-info); }
.badge--secondary { background: var(--color-surface-2); color: var(--color-fg-muted); border: 1px solid var(--color-border); }
.badge--primary { background: var(--color-primary-soft); color: var(--color-primary-strong); }

/* ---------------- Alerts / messages ---------------- */
.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    border: 1px solid transparent;
}
.alert--success { background: var(--color-success-bg); color: var(--color-success); border-color: var(--color-success); }
.alert--warning { background: var(--color-warning-bg); color: var(--color-warning); border-color: var(--color-warning); }
.alert--danger { background: var(--color-danger-bg); color: var(--color-danger); border-color: var(--color-danger); }
.alert--info { background: var(--color-info-bg); color: var(--color-info); border-color: var(--color-info); }

/* ---------------- Help tip (? con tooltip) ---------------- */
.help-tip {
    display: inline-flex; align-items: center; justify-content: center;
    width: 16px; height: 16px; border-radius: 50%;
    border: 1px solid var(--color-border-strong); background: var(--color-surface);
    color: var(--color-fg-muted); font-size: 11px; font-weight: 700; line-height: 1;
    cursor: help; position: relative; vertical-align: middle; user-select: none;
    margin-left: 4px;
}
.help-tip:hover, .help-tip:focus-visible { color: var(--color-fg); border-color: var(--color-fg-muted); outline: none; }
.help-tip__bub {
    position: absolute; z-index: 2000; top: calc(100% + 8px); left: 50%; transform: translateX(-50%);
    width: max-content; max-width: 260px;
    background: var(--color-surface); color: var(--color-fg);
    border: 1px solid var(--color-border-strong); border-radius: 8px;
    padding: 8px 10px; font-size: 12px; font-weight: 400; line-height: 1.45; text-align: left;
    box-shadow: 0 6px 24px rgba(0, 0, 0, .28);
    opacity: 0; visibility: hidden; transition: opacity .12s; pointer-events: none;
    white-space: normal;
}
.help-tip:hover .help-tip__bub, .help-tip:focus-visible .help-tip__bub { opacity: 1; visibility: visible; }

/* ---------------- Breadcrumb ---------------- */
.breadcrumb {
    height: var(--breadcrumb-height);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0 var(--space-6);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    font-size: var(--font-size-sm);
    color: var(--color-fg-muted);
}
.breadcrumb a { color: var(--color-fg-muted); }
.breadcrumb__sep { color: var(--color-fg-subtle); }
.breadcrumb__current { color: var(--color-fg); font-weight: var(--font-weight-medium); }

/* ---------------- Login page (no shell) ---------------- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: var(--color-bg);
}
.login-card {
    width: 100%;
    max-width: 420px;
}

/* ---------------- Theme switcher popover ---------------- */
.theme-popover {
    position: absolute;
    right: var(--space-6);
    top: calc(var(--topbar-height) + var(--space-2));
    width: 300px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    z-index: var(--z-dropdown);
}
.theme-popover__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
}
.theme-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}
.theme-option {
    height: 44px;
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
    background: var(--color-surface-2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    text-transform: capitalize;
    color: var(--color-fg);
}
.theme-option--active { border-color: var(--color-primary); background: var(--color-primary-soft); color: var(--color-primary-strong); font-weight: var(--font-weight-semibold); }

/* Paleta como swatches: cada boton muestra su color; "Libre" abre el picker. */
.theme-swatches {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}
.theme-swatch {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}
.theme-swatch__dot {
    width: 100%;
    height: 30px;
    border-radius: var(--radius-md);
    background: var(--sw);
    border: 2px solid transparent;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
}
.theme-swatch__name { font-size: 0.7rem; color: var(--color-fg-muted); }
.theme-swatch.is-active .theme-swatch__dot { border-color: var(--color-fg); }
.theme-swatch.is-active .theme-swatch__name { color: var(--color-fg); font-weight: var(--font-weight-semibold); }
.theme-swatch__edit { color: #fff; font-size: 12px; line-height: 1; text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6); }
.theme-swatch__picker {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 30px;
    opacity: 0;
    pointer-events: none;
    border: none;
    padding: 0;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
    .app-shell {
        grid-template-columns: 1fr;
        grid-template-areas:
            "topbar"
            "main";
    }
    .app-sidebar { display: none; }
    .app-sidebar--open { display: block; position: fixed; left: 0; top: 0; bottom: 0; width: var(--sidebar-width); z-index: var(--z-fixed); }
}
