/* ===== Nihongo no Tabi — tema japonês ===== */

:root {
    --paper: #f6f1e7;
    --card: #fffdf8;
    --ink: #2b2621;
    --muted: #8a7d6d;
    --line: #e7ddcc;
    --red: #b93a32;
    --red-soft: #f3ded9;
    --indigo: #35506b;
    --ok: #3e7d4f;
    --ok-soft: #e3efe4;
    --shadow: 0 1px 3px rgba(60, 45, 30, .08);
}

@media (prefers-color-scheme: dark) {
    :root {
        --paper: #16130f;
        --card: #211d18;
        --ink: #ece4d8;
        --muted: #a29581;
        --line: #383226;
        --red: #d35148;
        --red-soft: #3a2320;
        --indigo: #8fb0cf;
        --ok: #7cb98b;
        --ok-soft: #22301f;
        --shadow: 0 1px 3px rgba(0, 0, 0, .4);
    }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, -apple-system, "Segoe UI", sans-serif;
    line-height: 1.55;
    font-size: 16px;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 0 14px; }

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

h1 { font-size: 1.45rem; margin: 0 0 6px; }
h2 { font-size: 1.15rem; margin: 0; }

/* ===== Cabeçalho com padrão seigaiha ===== */
.site-header {
    background: #b93a32
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='28'%3E%3Cg fill='%23b93a32' stroke='rgba(255,255,255,0.14)' stroke-width='1.5'%3E%3Ccircle cx='0' cy='14' r='13'/%3E%3Ccircle cx='0' cy='14' r='8'/%3E%3Ccircle cx='0' cy='14' r='3'/%3E%3Ccircle cx='56' cy='14' r='13'/%3E%3Ccircle cx='56' cy='14' r='8'/%3E%3Ccircle cx='56' cy='14' r='3'/%3E%3Ccircle cx='28' cy='28' r='13'/%3E%3Ccircle cx='28' cy='28' r='8'/%3E%3Ccircle cx='28' cy='28' r='3'/%3E%3C/g%3E%3C/svg%3E");
    color: #fff;
    border-bottom: 4px solid #93261f;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 12px;
    padding-bottom: 12px;
}

.brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.brand:hover { text-decoration: none; }

.hinomaru {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #fff;
    position: relative;
    flex: none;
}
.hinomaru::after {
    content: "";
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    background: #b93a32;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-jp { font-weight: 700; font-size: 1.15rem; }
.brand-pt { font-size: .72rem; opacity: .85; letter-spacing: .08em; text-transform: uppercase; }

.site-nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.site-nav a { color: #fff; font-weight: 600; font-size: .95rem; }

.user-chip { display: inline-flex; align-items: center; gap: 7px; }
.user-avatar { width: 28px; height: 28px; border-radius: 50%; border: 2px solid rgba(255,255,255,.7); display: block; }
.user-logout { font-size: .82rem; opacity: .85; }

/* ===== Cartões e seções ===== */
main { padding: 16px 14px 40px; }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px;
    margin: 0 0 16px;
    box-shadow: var(--shadow);
}

.hero-sub, .module-sub, .cat-desc { color: var(--muted); margin: 0 0 10px; font-size: .95rem; }

/* ===== Barras de progresso ===== */
.progress-line { display: flex; align-items: center; gap: 10px; }

.progress-bar {
    flex: 1;
    height: 12px;
    background: var(--red-soft);
    border-radius: 99px;
    overflow: hidden;
}
.progress-bar.slim { height: 8px; }
.progress-bar.tiny { height: 5px; display: block; margin-top: 6px; }

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--red), #d96a52);
    border-radius: 99px;
    transition: width .3s ease;
}

.progress-label { font-size: .88rem; color: var(--muted); white-space: nowrap; }

/* ===== Módulos e categorias (home) ===== */
.module-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 10px; }

.module-pct {
    font-weight: 700;
    color: var(--red);
    background: var(--red-soft);
    border-radius: 99px;
    padding: 3px 10px;
    font-size: .85rem;
    flex: none;
}
.module-pct.done { color: var(--ok); background: var(--ok-soft); }

.cat-grid {
    list-style: none;
    margin: 14px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.cat-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px;
    color: var(--ink);
    transition: transform .12s ease, border-color .12s ease;
}
.cat-card:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--red); }
.cat-card.done { border-color: var(--ok); }

.cat-icon { font-size: 1.4rem; display: block; margin-bottom: 4px; }
.cat-name { font-weight: 600; display: block; font-size: .95rem; line-height: 1.35; flex: 1; }
.cat-count { color: var(--muted); font-size: .82rem; margin-top: 6px; }

/* ===== Página da categoria ===== */
.breadcrumb { margin: 4px 0 12px; font-size: .9rem; color: var(--muted); }

.cat-head h1 { display: flex; align-items: center; gap: 8px; }

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
}

.filter-tabs { display: flex; gap: 4px; background: var(--paper); border-radius: 99px; padding: 3px; border: 1px solid var(--line); }

.tab {
    border: 0;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: .85rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 99px;
    cursor: pointer;
}
.tab.active { background: var(--red); color: #fff; }

.toolbar-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.btn {
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--ink);
    font: inherit;
    font-size: .88rem;
    font-weight: 600;
    padding: 7px 12px;
    border-radius: 10px;
    cursor: pointer;
}
.btn:hover { border-color: var(--red); }
.btn-primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }

/* ===== Lista de frases ===== */
.phrase-list { list-style: none; margin: 0; padding: 0; counter-reset: phrase; }

.phrase-card {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    background: var(--card);
    border: 1px solid var(--line);
    border-left: 4px solid var(--line);
    border-radius: 12px;
    padding: 13px 14px;
    margin-bottom: 10px;
    box-shadow: var(--shadow);
}
.phrase-card[data-studied="1"] { border-left-color: var(--ok); }
.phrase-card[data-studied="1"] .jp { opacity: .75; }

.phrase-text { flex: 1; min-width: 0; }
.phrase-text p { margin: 0; }

.phrase-cat { display: inline-block; font-size: .78rem; margin-bottom: 4px; color: var(--muted); }

.jp { font-size: 1.35rem; font-weight: 600; line-height: 1.5; }
.kana { color: var(--indigo); font-size: .98rem; margin-top: 2px; }
.romaji { color: var(--muted); font-style: italic; font-size: .9rem; }
.pt { margin-top: 4px; font-size: .98rem; }

.phrase-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-self: center;
    flex: none;
}

.speak-btn {
    flex: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--line);
    background: transparent;
    font-size: 1rem;
    cursor: pointer;
    transition: all .15s ease;
}
.speak-btn:hover { border-color: var(--indigo); }
.speak-btn.speaking { border-color: var(--indigo); background: var(--indigo); }

.check-btn {
    flex: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--line);
    background: transparent;
    color: transparent;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all .15s ease;
    align-self: center;
}
.check-btn:hover { border-color: var(--ok); color: var(--ok); }
.phrase-card[data-studied="1"] .check-btn {
    background: var(--ok);
    border-color: var(--ok);
    color: #fff;
}

/* filtros */
.phrase-list[data-filter="pending"] .phrase-card[data-studied="1"] { display: none; }
.phrase-list[data-filter="studied"] .phrase-card[data-studied="0"] { display: none; }

/* ===== Paginação entre categorias ===== */
.pager { display: flex; justify-content: space-between; gap: 10px; margin: 20px 0; flex-wrap: wrap; }
.pager-link { font-weight: 600; font-size: .92rem; }
.pager-link.next { margin-left: auto; text-align: right; }

/* ===== Busca ===== */
.search-form { display: flex; gap: 8px; margin-top: 8px; }
.search-form input {
    flex: 1;
    font: inherit;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: var(--paper);
    color: var(--ink);
    min-width: 0;
}
.search-form input:focus { outline: 2px solid var(--red); border-color: transparent; }
.search-count { color: var(--muted); font-size: .9rem; }

/* ===== Modo treino (flashcards) ===== */
.trainer[hidden] { display: none; }

.trainer {
    position: fixed;
    inset: 0;
    background: rgba(20, 14, 10, .55);
    backdrop-filter: blur(3px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
}

.trainer-inner {
    background: var(--card);
    border-radius: 18px;
    width: 100%;
    max-width: 520px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    border-top: 5px solid var(--red);
}

.trainer-head { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-weight: 600; }

.flashcard {
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 8px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 22px 16px;
    cursor: pointer;
    user-select: none;
}
.flashcard .jp { font-size: 1.7rem; }
.flashcard .kana { font-size: 1.1rem; }
.flashcard .pt { font-size: 1.05rem; font-weight: 600; }
.fc-hint { color: var(--muted); font-size: .82rem; margin-top: 10px; }

.trainer-actions { display: flex; gap: 8px; justify-content: space-between; }
.trainer-actions .btn { flex: 1; }
.btn-check { border-color: var(--ok); color: var(--ok); }
.btn-check.marked { background: var(--ok); color: #fff; }

/* ===== Guia da língua ===== */
.guide-module { margin-bottom: 10px; color: var(--red); }

.guide-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }

.guide-item {
    display: block;
    background: var(--paper);
    border: 1px solid var(--line);
    border-left: 4px solid var(--red);
    border-radius: 10px;
    padding: 10px 14px;
    color: var(--ink);
    transition: transform .12s ease;
}
.guide-item:hover { text-decoration: none; transform: translateX(3px); }
.guide-title { display: block; font-weight: 700; }
.guide-summary { display: block; color: var(--muted); font-size: .88rem; margin-top: 2px; }

.article-body { font-size: 1rem; }
.article-body h2 { margin: 22px 0 8px; color: var(--red); font-size: 1.1rem; }
.article-body h3 { margin: 16px 0 6px; font-size: 1rem; }
.article-body p { margin: 0 0 12px; }
.article-body ul, .article-body ol { margin: 0 0 12px; padding-left: 22px; }
.article-body li { margin-bottom: 4px; }
.article-body span[lang="ja"] { font-weight: 600; }

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 14px;
    font-size: .92rem;
    display: block;
    overflow-x: auto;
}
.article-body th, .article-body td {
    border: 1px solid var(--line);
    padding: 7px 10px;
    text-align: left;
    vertical-align: top;
}
.article-body th { background: var(--paper); }

.article-body .example {
    position: relative;
    background: var(--paper);
    border: 1px solid var(--line);
    border-left: 4px solid var(--indigo);
    border-radius: 10px;
    padding: 12px 58px 12px 14px;
    margin: 0 0 12px;
}
.article-body .example p { margin: 0; }
.article-body .example .jp { font-size: 1.2rem; }
.article-body .example .speak-btn {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
}

.article-body .tip {
    background: var(--ok-soft);
    border: 1px solid var(--ok);
    border-radius: 10px;
    padding: 10px 14px;
    margin: 0 0 12px;
    font-size: .94rem;
}

/* ===== Referência (tabelas) ===== */
.ref-block h2 { color: var(--red); margin-bottom: 6px; }
.ref-note { color: var(--muted); font-size: .9rem; margin: 0 0 12px; }

.ref-scroll { overflow-x: auto; }

.ref-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .95rem;
}
.ref-table th, .ref-table td {
    border-bottom: 1px solid var(--line);
    padding: 8px 10px;
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
}
.ref-table td.pt { white-space: normal; min-width: 140px; }
.ref-table th {
    color: var(--muted);
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.ref-table tbody tr:nth-child(even) { background: var(--paper); }
.ref-table td.jp { font-size: 1.15rem; font-weight: 600; }
.ref-table td.kana { color: var(--indigo); }
.ref-table td.romaji { color: var(--muted); font-style: italic; }
.ref-table .ref-audio { padding: 4px 6px; }
.ref-table .speak-btn { width: 34px; height: 34px; font-size: .85rem; }

@media (max-width: 560px) {
    .ref-table { font-size: .88rem; }
    .ref-table td.jp { font-size: 1.05rem; }
    .ref-table th, .ref-table td { padding: 7px 8px; }
}

/* ===== Rodapé ===== */
.site-footer {
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .85rem;
    text-align: center;
    padding: 18px 0 26px;
}

/* ===== Login ===== */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 14px;
}

.login-box { width: 100%; max-width: 420px; }

.login-card { text-align: center; padding: 32px 22px; border-top: 5px solid var(--red); }
.login-mark { margin: 0 auto 14px; width: 52px; height: 52px; background: var(--red-soft); }
.login-mark::after { inset: 12px; }
.login-card h1 { font-size: 1.9rem; margin-bottom: 2px; }
.login-sub { color: var(--muted); margin: 0 0 14px; font-size: .9rem; letter-spacing: .04em; }
.login-desc { color: var(--muted); font-size: .95rem; margin: 0 0 22px; }

.google-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 99px;
    padding: 12px 26px;
    font-weight: 700;
    color: var(--ink);
    box-shadow: var(--shadow);
    transition: transform .12s ease, border-color .12s ease;
}
.google-btn:hover { text-decoration: none; transform: translateY(-1px); border-color: var(--red); }

.login-warn { text-align: left; background: var(--red-soft); border-color: var(--red); }
.login-foot { color: var(--muted); margin: 22px 0 0; font-size: .9rem; }

/* ===== Mobile ===== */
@media (max-width: 560px) {
    /* Cabeçalho: marca em cima, navegação embaixo com respiro */
    .header-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding-top: 12px;
        padding-bottom: 12px;
    }
    .brand { justify-content: center; }
    .brand-jp { font-size: 1.05rem; }
    .site-nav { justify-content: center; gap: 8px 14px; }
    .site-nav a { font-size: .9rem; }

    main { padding: 14px 12px 40px; }
    .card { padding: 15px 14px; margin-bottom: 14px; }
    .hero h1 { font-size: 1.28rem; }
    h1 { font-size: 1.3rem; }

    /* Cards de categoria: 2 colunas com altura uniforme e mais respiro */
    .cat-grid { grid-template-columns: 1fr 1fr; gap: 11px; }
    .cat-card { padding: 12px 11px; min-height: 122px; }
    .cat-name { font-size: .88rem; }
    .cat-icon { font-size: 1.3rem; }

    .module-head { flex-wrap: wrap; }
    .module-sub { font-size: .88rem; }

    .progress-line { flex-wrap: wrap; }
    .progress-label { font-size: .84rem; }

    /* Toolbar da categoria: tudo empilhado e com toque confortável */
    .toolbar { flex-direction: column; align-items: stretch; gap: 9px; }
    .filter-tabs { width: 100%; }
    .tab { flex: 1; text-align: center; padding: 8px 6px; }
    .toolbar-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .toolbar-actions .btn { padding: 10px 8px; }
    .toolbar-actions .btn-primary { grid-column: 1 / -1; }

    /* Frases: japonês legível, botões alinhados */
    .phrase-card { padding: 12px; gap: 10px; margin-bottom: 9px; }
    .jp { font-size: 1.22rem; }
    .kana { font-size: .94rem; }
    .pt { font-size: .95rem; }

    /* Navegação entre categorias empilhada */
    .pager { flex-direction: column; gap: 10px; }
    .pager-link, .pager-link.next { margin: 0; text-align: center; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px; }

    /* Busca */
    .search-form { flex-direction: column; }
    .search-form .btn { padding: 11px; }

    /* Flashcards ocupando melhor a tela */
    .trainer { padding: 10px; }
    .trainer-inner { padding: 13px; }
    .flashcard { min-height: 300px; padding: 18px 12px; }
    .flashcard .jp { font-size: 1.5rem; }
    .trainer-actions { flex-wrap: wrap; }
    .trainer-actions .btn { flex: 1 1 45%; padding: 11px 8px; }

    /* Guia e referência */
    .guide-item { padding: 11px 13px; }
    .article-body .example { padding: 12px 52px 12px 12px; }
}