/*
 * Life Control: Design System & Tokens
 * Mobile-first, acessível e nativo.
 */

:root {
    color-scheme: dark;

    /* Cores (Tokens extraídos da Etapa 01) */
    --color-bg: #0d131f;
    --color-surface: #111a26;
    --color-surface-sunken: #0b111e;
    --color-surface-elevated: #1a2537;
    --color-surface-hover: rgba(255, 255, 255, 0.05);

    --color-primary: #5c8aff;
    --color-primary-hover: #4a75e6;
    --color-primary-alpha: rgba(92, 138, 255, 0.15);

    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    
    --color-border: #1e293b;
    --color-border-hover: #334155;

    --color-danger: #ef4444;
    --color-success: #22c55e;
    --color-warning: #f59e0b;

    /* Tipografia */
    --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
    
    /* Espaçamento */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Bordas */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Shell dimensões */
    --sidebar-width: 16rem;
    --bottom-nav-height: 4rem;
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    scrollbar-color: var(--color-surface-elevated) var(--color-bg);
}

body {
    margin: 0;
    min-height: 100vh;
}

h1, h2, h3, h4, p, ul, figure {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

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

button, input, select, textarea {
    font: inherit;
    color: inherit;
}

/* Foco global de acessibilidade */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Pular para conteúdo (A11y) */
.skip-link {
    position: absolute;
    top: -3rem;
    left: 1rem;
    background: var(--color-primary);
    color: #fff;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    z-index: 9999;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 1rem;
}

/* ==========================================================================
   LAYOUT SHELL (Mobile First)
   ========================================================================== */
.shell-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.shell-sidebar {
    display: none; /* Escondido no mobile nativamente (pode virar drawer depois) */
    background-color: var(--color-surface-sunken);
    border-right: 1px solid var(--color-border);
    width: var(--sidebar-width);
    flex-shrink: 0;
    padding: var(--spacing-md) 0;
}

.shell-sidebar__brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-md);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
}

.shell-sidebar__logo-dot {
    width: 0.75rem;
    height: 0.75rem;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.shell-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.shell-nav__link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-text-muted);
    font-weight: 500;
    border-left: 3px solid transparent;
}

.shell-nav__link:hover {
    background-color: var(--color-surface-hover);
    color: var(--color-text);
    text-decoration: none;
}

.shell-nav__link--active {
    background-color: var(--color-primary-alpha);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.shell-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-bottom: var(--bottom-nav-height); /* Espaço para bottom nav */
}

.shell-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.shell-topbar__title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.shell-main {
    flex: 1;
    padding: var(--spacing-md);
    overflow-x: hidden;
}
.shell-main:focus {
    outline: none; /* Remove foco azul do tabindex="-1" */
}

/* Bottom Navigation (Mobile) */
.shell-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background-color: var(--color-surface-sunken);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 40;
    padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    padding: var(--spacing-sm);
    flex: 1;
    background: transparent;
    border: none;
    cursor: pointer;
}
.bottom-nav__link:hover {
    text-decoration: none;
    color: var(--color-text);
}
.bottom-nav__link--active {
    color: var(--color-primary);
    font-weight: 600;
}

@media (min-width: 1024px) {
    .shell-layout {
        flex-direction: row;
    }
    .shell-sidebar {
        display: block; /* Visível no desktop */
    }
    .shell-wrapper {
        margin-bottom: 0;
    }
    .shell-bottom-nav {
        display: none; /* Escondido no desktop */
    }
    .shell-topbar {
        display: none; /* Opcional no desktop, depende do design, mas o print não tinha. Escondemos por enquanto. */
    }
    .shell-main {
        padding: var(--spacing-xl);
    }
}

/* ==========================================================================
   COMPONENTES
   ========================================================================== */

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    margin-bottom: 0.5rem; /* Fallback de espaçamento vertical */
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s, border-color 0.2s;
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.btn--primary {
    background-color: var(--color-primary);
    color: #fff;
}
.btn--primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
}
.btn--secondary {
    background-color: var(--color-surface-elevated);
    border-color: var(--color-border);
    color: var(--color-text);
}
.btn--secondary:hover:not(:disabled) {
    background-color: var(--color-border);
}
.btn--danger {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.3);
}
.btn--danger:hover:not(:disabled) {
    background-color: rgba(239, 68, 68, 0.25);
}
.btn--ghost {
    background-color: transparent;
    color: var(--color-text);
}
.btn--ghost:hover:not(:disabled) {
    background-color: var(--color-surface-hover);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: var(--spacing-md);
}

/* Formulários */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}
.form-label {
    font-size: 0.875rem;
    font-weight: 500;
}
.form-input, .form-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}
.form-input:focus, .form-select:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 1px var(--color-primary);
}
.form-input[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Checkbox (Acessível via label encapsulado) */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}
.form-check__input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
    cursor: inherit;
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}
.card__header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
}

/* Tabelas (Responsivas no mobile: container com scroll) */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.table th, .table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.table th {
    font-weight: 600;
    color: var(--color-text-muted);
}
.table tbody tr:hover {
    background-color: var(--color-surface-hover);
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    overflow-x: auto; /* Rolagem horizontal no mobile se muitas abas */
}
.tabs__btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-muted);
    padding: var(--spacing-sm) 0;
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
}
.tabs__btn:hover {
    color: var(--color-text);
}
.tabs__btn[aria-selected="true"] {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Badges (Tags) */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    background-color: var(--color-surface-elevated);
    color: var(--color-text);
}
.badge--primary { background-color: var(--color-primary-alpha); color: var(--color-primary); }
.badge--success { background-color: rgba(34, 197, 94, 0.15); color: var(--color-success); }
.badge--warning { background-color: rgba(245, 158, 11, 0.15); color: var(--color-warning); }

/* Feedback States */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-lg);
}
.error-state {
    padding: var(--spacing-md);
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-danger);
    margin-bottom: var(--spacing-md);
}

/* Modal (Dialog Nativo) */
.modal {
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background-color: var(--color-surface);
    color: var(--color-text);
    width: min(90vw, 32rem);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}
.modal::backdrop {
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px); /* Efeito moderno, sem exagero */
}
.modal__header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal__body {
    padding: var(--spacing-md);
}
.modal__footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ==========================================================================
   VISITANTE / AUTH (Retrocompatibilidade com o antigo shell)
   ========================================================================== */
.auth-shell {
    display: grid;
    min-height: 100vh;
    width: min(100% - 1.5rem, 34rem);
    margin-inline: auto;
    padding-block: 1.5rem;
    place-items: center;
}
.auth-card {
    width: 100%;
    padding: clamp(1.25rem, 6vw, 2.5rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}
.auth-header { margin-bottom: 1.5rem; }
.auth-note { color: var(--color-text-muted); font-size: 0.875rem; }
.form-message {
    padding: 0;
    border: 0;
    background: transparent;
    border-radius: 0;
    margin: var(--spacing-md) 0 var(--spacing-lg);
    line-height: 1.5;
    overflow-wrap: anywhere;
}
.form-message--error {
    color: var(--color-danger);
}

.kanban-status {
    min-height: 1.5rem;
    margin: 0 0 var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}
.kanban-status--error { color: var(--color-danger); }
.kanban-column__body--over { background-color: var(--color-surface-hover); }
.kanban-card--dragging { opacity: 0.5; }
.kanban-card__move-label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
}
.kanban-card__move-select {
    width: 100%;
    min-height: 2.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-text);
    padding: 0.5rem;
}

/* Etapa 08: formulários de criação de cards e tarefas */
.task-create {
    margin-bottom: var(--spacing-md);
}
.task-create > summary {
    display: inline-flex;
    list-style: none;
    cursor: pointer;
}
.task-create > summary::-webkit-details-marker {
    display: none;
}
.task-create[open] > summary {
    margin-bottom: var(--spacing-md);
}
.task-create__form,
.quick-task-form {
    display: grid;
    gap: var(--spacing-md);
}
.task-create__actions,
.quick-task-form__submit {
    align-self: end;
}
.task-create input,
.task-create select,
.task-create textarea,
.quick-task-form input,
.quick-task-form select {
    width: 100%;
    min-height: 2.75rem;
}
.task-create textarea {
    min-height: 5.5rem;
    resize: vertical;
}
.form-hint {
    color: var(--color-text-muted);
    font-weight: 400;
}

@media (min-width: 48rem) {
    .task-create__form {
        grid-template-columns: minmax(0, 2fr) minmax(10rem, 1fr);
    }
    .task-create__wide {
        grid-column: 1 / -1;
    }
    .quick-task-form {
        grid-template-columns: minmax(16rem, 1fr) minmax(9rem, auto) minmax(9rem, auto) auto;
        align-items: end;
    }
}

/* Etapa 09: Calendário mobile-first */
.calendar-create { margin-bottom: var(--spacing-lg); }
.calendar-create > summary { display: inline-flex; list-style: none; cursor: pointer; }
.calendar-create > summary::-webkit-details-marker { display: none; }
.calendar-create[open] > summary { margin-bottom: var(--spacing-md); }
.calendar-create__form { display: grid; gap: var(--spacing-md); }
.calendar-create input:not([type="checkbox"]), .calendar-create textarea { width: 100%; }
.calendar-create textarea { resize: vertical; }
.calendar-check { display: flex; gap: .5rem; align-items: center; min-height: 2.75rem; }
.calendar-section { margin-top: var(--spacing-xl); }
.calendar-section h2 { font-size: 1.1rem; }
.calendar-week { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(15rem, 82vw); gap: var(--spacing-sm); overflow-x: auto; padding-bottom: var(--spacing-sm); scroll-snap-type: x proximity; }
.calendar-day { min-height: 12rem; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); scroll-snap-align: start; }
.calendar-day--today { border-color: var(--color-primary); }
.calendar-day h3 { display: flex; justify-content: space-between; margin: 0; padding: var(--spacing-sm); border-bottom: 1px solid var(--color-border); font-size: .875rem; }
.calendar-day h3 strong { color: var(--color-primary); font-size: 1.1rem; }
.calendar-events { display: grid; gap: .5rem; padding: .5rem; }
.calendar-event { display: grid; gap: .5rem; min-width: 0; padding: .75rem; border-left: .25rem solid var(--color-primary); border-radius: var(--radius-md); background: var(--color-surface-elevated); font-size: .875rem; overflow-wrap: anywhere; }
.calendar-event--all-day { border-left-color: var(--color-warning); }
.calendar-event time, .calendar-event span, .calendar-empty { color: var(--color-text-muted); font-size: .75rem; }
.calendar-month { display: grid; grid-template-columns: repeat(7, minmax(2.5rem, 1fr)); min-width: 38rem; border: 1px solid var(--color-border); }
.calendar-section--month { overflow-x: auto; }
.calendar-month__weekday, .calendar-month__day { padding: .4rem; border-right: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.calendar-month__weekday { color: var(--color-text-muted); font-size: .75rem; font-weight: 600; text-align: center; }
.calendar-month__day { min-height: 6rem; background: var(--color-surface); }
.calendar-month__day--outside { opacity: .45; }
.calendar-month__day--today > span:first-child { display: inline-grid; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--color-primary); color: #fff; place-items: center; }
.calendar-marker { display: block; margin-top: .25rem; padding: .15rem .3rem; overflow: hidden; border-radius: .25rem; background: var(--color-primary-alpha); color: var(--color-primary); font-size: .68rem; text-overflow: ellipsis; white-space: nowrap; }
@media (min-width: 64rem) {
    .calendar-create__form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .calendar-create__wide { grid-column: 1 / -1; }
    .calendar-week { grid-auto-flow: initial; grid-template-columns: repeat(7, minmax(0, 1fr)); overflow: visible; }
}
.calendar-header { display: flex; flex-direction: column; gap: var(--spacing-md); }
.calendar-nav { display: flex; flex-wrap: wrap; gap: .5rem; }
.calendar-event__title--done { text-decoration: line-through; opacity: .7; }
.calendar-event__title { min-width: 0; line-height: 1.4; }
.calendar-event__title a { display: block; color: inherit; text-decoration: none; }
.calendar-event__title a:hover, a.calendar-marker:hover { text-decoration: underline; }
.calendar-event__title a:focus-visible, a.calendar-marker:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: .2rem; }
.calendar-event__footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .4rem .5rem; padding-top: .4rem; border-top: 1px solid var(--color-border); }
.calendar-event__source { flex: 1 1 3rem; min-width: 0; font-weight: 600; }
.calendar-event__action { margin: 0 0 0 auto; flex-shrink: 0; }
.calendar-event__button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem; padding: .25rem .5rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: transparent; color: var(--color-text); font: inherit; text-decoration: none; cursor: pointer; }
.calendar-event__button:hover, .calendar-event__button:focus-visible { border-color: var(--color-primary); color: var(--color-primary); }
@media (min-width: 48rem) { .calendar-header { flex-direction: row; align-items: center; justify-content: space-between; } }

.quick-task-form__calendar { display: flex; align-items: center; gap: .5rem; min-height: 2.75rem; }
.ics-sources { margin-top: var(--spacing-lg); }
.ics-sources__add > summary { display: inline-flex; list-style: none; cursor: pointer; }
.ics-source-form { display: grid; gap: var(--spacing-md); margin-top: var(--spacing-md); }
.ics-source-list { display: grid; gap: .5rem; margin-top: var(--spacing-md); }
.ics-source-item { display: grid; grid-template-columns: auto minmax(0,1fr); gap: .75rem; align-items: center; padding: .75rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.ics-source-item form { grid-column: 1 / -1; }
.ics-source-item__color { width: .75rem; height: 2.5rem; border-radius: 999px; }
.ics-source-item small { display: block; color: var(--color-text-muted); overflow-wrap: anywhere; }
@media (min-width: 48rem) { .ics-source-form { grid-template-columns: minmax(10rem,1fr) minmax(16rem,2fr) auto auto; align-items: end; } .ics-source-item { grid-template-columns: auto minmax(0,1fr) auto; } .ics-source-item form { grid-column: auto; } }
.shopping { display: grid; gap: 1rem; min-width: 0; }
.shopping .card { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.shopping h2, .shopping h3 { margin: 0 0 .5rem; }
.shopping h3 a { color: var(--color-text); }
.shopping summary { cursor: pointer; min-height: 2.75rem; padding-block: .65rem; }
.shopping summary:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.shopping-lists, .shopping-items { display: grid; gap: 1rem; min-width: 0; }
.shopping-list { border-top: .25rem solid var(--color-primary); }
.shopping-form { display: grid; gap: .5rem; margin-top: .5rem; }
.shopping-form input:not([type=checkbox]), .shopping-form select { min-width: 0; max-width: 100%; width: 100%; min-height: 2.75rem; padding: .65rem .75rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-elevated); color: var(--color-text); font: inherit; }
.shopping-form input:focus-visible, .shopping-form select:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.shopping a { color: var(--color-primary); }
.shopping-list h3 a { color: var(--color-text); }
.shopping-form input[type=color] { max-width: 6rem; }
.shopping-form button { justify-self: start; min-height: 2.75rem; margin-top: .5rem; }
.shopping-toolbar { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin-block: .5rem; }
.shopping-item { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .5rem; align-items: start; }
.shopping-item__wide { grid-column: 1 / -1; }
.shopping-status { font-size: .8rem; padding: .35rem .5rem; border-radius: var(--radius-md); background: var(--color-surface-elevated); }
.shopping-confirm { display: flex; align-items: center; gap: .5rem; min-height: 2.75rem; }
@media (min-width: 48rem) { .shopping-lists { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (min-width: 80rem) { .shopping-lists { grid-template-columns: repeat(3,minmax(0,1fr)); } }
.shopping-prices { display: flex; flex-wrap: wrap; gap: .5rem 1rem; color: var(--color-text-muted); font-size: .875rem; }