/* ============================================================
   PAE 2026.2 — POLIMATIA
   Tema pergaminho · tipografia clássica
   ============================================================ */

:root {
    /* Paleta pergaminho */
    --parchment:        #f3e7c9;
    --parchment-light:  #faf3df;
    --parchment-dark:   #e7d6a8;
    --ink:              #2b1d10;
    --ink-soft:         #5a4423;
    --sepia:            #7a5a2e;
    --gold:             #b48a3c;
    --gold-deep:        #8a6520;
    --crimson:          #8b2e2e;
    --line:             #c9b27a;
    --line-soft:        #d9c590;
    --shadow-soft:      0 2px 14px rgba(80, 50, 10, 0.10);
    --shadow-card:      0 6px 24px rgba(80, 50, 10, 0.14);
    --radius:           6px;
    --transition:       180ms ease;
}

/* ----------- Reset leve ----------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }

/* ----------- Base ----------- */
body {
    font-family: 'Lora', Georgia, 'Times New Roman', serif;
    color: var(--ink);
    background-color: var(--parchment);
    background-image:
        radial-gradient(ellipse at top, rgba(255, 248, 220, 0.65), transparent 60%),
        radial-gradient(ellipse at bottom, rgba(180, 138, 60, 0.10), transparent 70%),
        url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.55  0 0 0 0 0.42  0 0 0 0 0.18  0 0 0 0.08 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    background-blend-mode: multiply;
    background-size: cover, cover, 180px 180px;
    background-attachment: fixed, fixed, fixed;
    line-height: 1.65;
    font-size: 17px;
    min-height: 100vh;
}

a {
    color: var(--gold-deep);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}
a:hover { color: var(--crimson); border-bottom-color: currentColor; }

/* ----------- Tipografia ----------- */
h1, h2, h3, h4 {
    font-family: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
    color: var(--ink);
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.2;
    margin: 0 0 0.6em;
}
h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); color: var(--ink-soft); }
h3 { font-size: 1.35rem; color: var(--ink-soft); }
h4 { font-size: 1.1rem; color: var(--sepia); text-transform: uppercase; letter-spacing: 0.12em; }

p { margin: 0 0 1em; }
em { color: var(--sepia); }
strong { color: var(--ink); }
blockquote {
    border-left: 3px solid var(--gold);
    padding: 0.4em 1em;
    margin: 1.5em 0;
    color: var(--ink-soft);
    font-style: italic;
    background: rgba(255, 248, 220, 0.4);
}

hr.flourish {
    border: 0;
    height: 28px;
    background: center / contain no-repeat
        url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='20' viewBox='0 0 120 20'><path d='M0 10 H40 M80 10 H120' stroke='%238a6520' stroke-width='1'/><path d='M50 10 q5 -8 10 0 t10 0' fill='none' stroke='%238a6520' stroke-width='1.2'/><circle cx='45' cy='10' r='1.5' fill='%238a6520'/><circle cx='75' cy='10' r='1.5' fill='%238a6520'/></svg>");
    margin: 2.2em auto;
    opacity: 0.85;
}

/* ----------- Layout ----------- */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ----------- Header ----------- */
.site-header {
    border-bottom: 1px solid var(--line);
    background: rgba(250, 243, 223, 0.6);
    backdrop-filter: blur(2px);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 10;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 18px;
}
.brand img { height: 44px; width: auto; }
.brand .divider {
    width: 1px;
    height: 36px;
    background: var(--line);
}
.site-nav a {
    margin-left: 22px;
    color: var(--ink-soft);
    font-size: 0.95rem;
    border-bottom: none;
}
.site-nav a:hover { color: var(--crimson); }

/* ----------- Hero ----------- */
.hero {
    text-align: center;
    padding: 70px 24px 50px;
    position: relative;
}
.hero .eyebrow {
    font-family: 'Cormorant Garamond', serif;
    color: var(--gold-deep);
    text-transform: uppercase;
    letter-spacing: 0.4em;
    font-size: 0.85rem;
    margin-bottom: 16px;
}
.hero h1 { margin-bottom: 14px; }
.hero .lede {
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.15rem;
    color: var(--ink-soft);
    font-style: italic;
}

/* ----------- Cards / seções ----------- */
.section { padding: 50px 0; }
.section-title {
    text-align: center;
    margin-bottom: 36px;
}

.ato-block {
    background: rgba(255, 250, 230, 0.5);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 28px 32px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-soft);
}
.ato-block h2 {
    color: var(--gold-deep);
    border-bottom: 1px solid var(--line-soft);
    padding-bottom: 10px;
    margin-bottom: 18px;
}

.grid-obras {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 22px;
}

.card-obra {
    background: var(--parchment-light);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 22px 22px 18px;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--line-soft);
}
.card-obra:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
    border-color: var(--gold);
    color: inherit;
}
.card-obra .num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    color: var(--gold-deep);
    line-height: 1;
    margin-bottom: 6px;
}
.card-obra h3 {
    margin: 0 0 6px;
    font-size: 1.15rem;
    color: var(--ink);
}
.card-obra .autor {
    font-style: italic;
    color: var(--sepia);
    font-size: 0.95rem;
    margin-bottom: 10px;
}
.card-obra .obra-title {
    font-size: 0.95rem;
    color: var(--ink-soft);
    flex: 1;
}
.card-obra .leia {
    margin-top: 14px;
    font-size: 0.85rem;
    color: var(--gold-deep);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* ----------- Conteúdo de página de obra ----------- */
.obra-header {
    text-align: center;
    padding: 60px 24px 30px;
    border-bottom: 1px solid var(--line-soft);
}
.obra-header .aula-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.15rem;
    color: var(--gold-deep);
    text-transform: uppercase;
    letter-spacing: 0.32em;
    margin-bottom: 14px;
}
.obra-header h1 { margin-bottom: 8px; }
.obra-header .autor {
    font-style: italic;
    color: var(--sepia);
    font-size: 1.15rem;
}

.obra-body {
    padding: 40px 0 20px;
}
.obra-body h4 { margin-top: 1.8em; }

.meta-list {
    list-style: none;
    padding: 0;
    margin: 24px 0;
    display: grid;
    gap: 10px;
}
.meta-list li {
    background: rgba(255, 250, 230, 0.55);
    border-left: 3px solid var(--gold);
    padding: 10px 14px;
}
.meta-list li strong { color: var(--gold-deep); }

/* ----------- Botões ----------- */
.btn {
    display: inline-block;
    padding: 12px 26px;
    background: var(--gold-deep);
    color: var(--parchment-light) !important;
    border: 1px solid var(--gold-deep);
    border-radius: var(--radius);
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: var(--transition);
    border-bottom: 1px solid var(--gold-deep) !important;
}
.btn:hover {
    background: var(--crimson);
    border-color: var(--crimson);
    color: var(--parchment-light) !important;
}
.btn.ghost {
    background: transparent;
    color: var(--gold-deep) !important;
}
.btn.ghost:hover {
    background: var(--gold-deep);
    color: var(--parchment-light) !important;
}

/* ============================================================
   NAVEGAÇÃO ENTRE AULAS
   ============================================================ */
.aula-nav {
    margin: 50px 0 20px;
    padding: 36px 24px;
    background:
        linear-gradient(180deg, rgba(255, 248, 220, 0.85), rgba(231, 214, 168, 0.55));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    text-align: center;
}
.aula-nav .eyebrow {
    font-family: 'Cormorant Garamond', serif;
    color: var(--gold-deep);
    text-transform: uppercase;
    letter-spacing: 0.4em;
    font-size: 0.85rem;
    margin-bottom: 8px;
}
.aula-nav h3 {
    font-family: 'Cormorant Garamond', serif;
    color: var(--ink);
    font-size: 1.7rem;
    margin-bottom: 22px;
}
.aula-nav .links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    max-width: 760px;
    margin: 0 auto;
}
.aula-nav .links.single {
    grid-template-columns: 1fr;
    max-width: 460px;
}
.aula-nav .nav-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px 22px;
    background: var(--parchment-light);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    text-align: left;
    border-bottom: 1px solid var(--line-soft);
}
.aula-nav .nav-card:hover {
    transform: translateY(-2px);
    border-color: var(--gold);
    box-shadow: var(--shadow-card);
    color: inherit;
}
.aula-nav .nav-card .dir {
    font-size: 0.78rem;
    color: var(--gold-deep);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-family: 'Cormorant Garamond', serif;
}
.aula-nav .nav-card.next { text-align: right; }
.aula-nav .nav-card.next .dir { color: var(--crimson); }
.aula-nav .nav-card .titulo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.2rem;
    color: var(--ink);
    font-weight: 600;
    line-height: 1.25;
}
.aula-nav .nav-card .autor {
    font-style: italic;
    color: var(--sepia);
    font-size: 0.9rem;
}
@media (max-width: 640px) {
    .aula-nav .links { grid-template-columns: 1fr; }
    .aula-nav .nav-card.next { text-align: left; }
}

/* ============================================================
   COMENTÁRIOS
   ============================================================ */
.comments-section {
    margin: 60px 0 30px;
    padding: 36px 24px;
    background: rgba(255, 250, 230, 0.55);
    border-top: 2px solid var(--line);
    border-bottom: 2px solid var(--line);
}
.comments-section h2 {
    text-align: center;
    color: var(--gold-deep);
    margin-bottom: 6px;
}
.comments-section .sub {
    text-align: center;
    color: var(--ink-soft);
    font-style: italic;
    margin-bottom: 28px;
}

.comment-form {
    background: var(--parchment-light);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 36px;
}
.comment-form .row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}
.comment-form label {
    display: block;
    font-size: 0.85rem;
    color: var(--sepia);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 6px;
}
.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: 10px 12px;
    background: #fffaf0;
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}
.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--gold-deep);
    box-shadow: 0 0 0 3px rgba(180, 138, 60, 0.18);
}
.comment-form textarea {
    min-height: 110px;
    resize: vertical;
    line-height: 1.55;
}
.comment-form .actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 6px;
}

.comments-list { display: flex; flex-direction: column; gap: 18px; }

.comment {
    background: var(--parchment-light);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow-soft);
}
.comment.reply {
    margin-left: 28px;
    background: rgba(250, 243, 223, 0.85);
    border-left: 3px solid var(--gold);
}
.comment .head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.comment .name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.25rem;
    color: var(--ink);
    font-weight: 600;
}
.comment .centro {
    color: var(--sepia);
    font-style: italic;
    font-size: 0.92rem;
}
.comment .date {
    color: var(--ink-soft);
    font-size: 0.8rem;
    margin-left: auto;
}
.comment .text {
    color: var(--ink);
    white-space: pre-wrap;
    margin-bottom: 12px;
}

.reactions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 6px;
}
.reaction-btn {
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.92rem;
    color: var(--ink-soft);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}
.reaction-btn:hover {
    border-color: var(--gold-deep);
    background: rgba(180, 138, 60, 0.1);
}
.reaction-btn.active {
    border-color: var(--gold-deep);
    background: rgba(180, 138, 60, 0.18);
    color: var(--gold-deep);
    font-weight: 600;
}
.reaction-btn .count {
    font-size: 0.8rem;
    color: var(--sepia);
}

.reply-toggle {
    background: transparent;
    border: none;
    color: var(--gold-deep);
    font-size: 0.88rem;
    margin-top: 8px;
    padding: 0;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.reply-toggle:hover { color: var(--crimson); text-decoration: underline; }

.reply-form {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
}
.reply-form .row { grid-template-columns: 1fr 1fr; }

.empty {
    text-align: center;
    color: var(--ink-soft);
    font-style: italic;
    padding: 30px 0;
}

/* ----------- Footer ----------- */
.site-footer {
    border-top: 1px solid var(--line);
    background: rgba(231, 214, 168, 0.4);
    padding: 30px 0;
    margin-top: 60px;
    color: var(--ink-soft);
    font-size: 0.92rem;
}
.site-footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
}

/* ----------- Responsivo ----------- */
@media (max-width: 720px) {
    body { font-size: 16px; }
    .site-header .container { flex-direction: column; gap: 12px; }
    .brand img { height: 36px; }
    .site-nav a { margin: 0 10px; }
    .comment-form .row { grid-template-columns: 1fr; }
    .comment.reply { margin-left: 14px; }
    .hero { padding: 50px 18px 30px; }
}