/* ==========================================================================
   Aurelian Folio — Livraria Elegance
   Design system: ivory & gold, editorial / classic library aesthetic
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,700;1,400&family=Playfair+Display:ital,wght@0,600;0,700;1,600&display=swap');

:root{
  --surface: #faf9f6;
  --surface-dim: #dbdad7;
  --surface-bright: #faf9f6;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f4f3f1;
  --surface-container: #efeeeb;
  --surface-container-high: #e9e8e5;
  --surface-container-highest: #e3e2e0;
  --on-surface: #1a1c1a;
  --on-surface-variant: #4e453e;
  --inverse-surface: #2f312f;
  --inverse-on-surface: #f2f1ee;
  --outline: #80756d;
  --outline-variant: #d2c4bb;

  --primary: #322214;
  --on-primary: #ffffff;
  --primary-container: #4a3728;
  --on-primary-container: #bba08c;
  --on-primary-fixed-variant: #574333;

  --secondary: #735c00;
  --on-secondary: #ffffff;
  --secondary-container: #fed65b;
  --secondary-fixed-dim: #e9c349;

  --tertiary: #16282b;
  --error: #ba1a1a;
  --background: #faf9f6;

  --font-serif: 'Playfair Display', serif;
  --font-sans: 'DM Sans', sans-serif;

  --unit: 8px;
  --container-max: 1200px;
  --gutter: 24px;
  --margin-mobile: 20px;
  --section-gap: 80px;

  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 10px rgba(74, 55, 40, 0.05);
  --shadow-md: 0 4px 20px rgba(74, 55, 40, 0.08);
  --shadow-lg: 0 8px 30px rgba(74, 55, 40, 0.14);

  --header-h: 80px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor: pointer; }
ul{ list-style: none; margin: 0; padding: 0; }

.hide-scrollbar::-webkit-scrollbar{ display: none; }
.hide-scrollbar{ -ms-overflow-style: none; scrollbar-width: none; }

.font-serif{ font-family: var(--font-serif); }

.display-lg{
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
@media (min-width: 900px){
  .display-lg{ font-size: 48px; line-height: 1.1; letter-spacing: -0.02em; }
}

.headline-md{
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.3;
}
@media (min-width: 900px){ .headline-md{ font-size: 32px; } }

.headline-sm{
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.4;
}
@media (min-width: 900px){ .headline-sm{ font-size: 24px; } }

.body-lg{ font-family: var(--font-sans); font-size: 18px; line-height: 1.6; }
.body-md{ font-family: var(--font-sans); font-size: 16px; line-height: 1.6; }
.body-sm{ font-family: var(--font-sans); font-size: 14px; line-height: 1.5; }

.label-caps{
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.text-primary{ color: var(--primary); }
.text-secondary{ color: var(--secondary); }
.text-gold{ color: var(--secondary-fixed-dim); }
.text-muted{ color: var(--on-surface-variant); }

.container{
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--margin-mobile);
}
@media (min-width: 900px){
  .container{ padding: 0 var(--gutter); }
}

.section-gap{ margin-bottom: var(--section-gap); }

/* ---------- Site Header ---------- */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(250, 249, 246, 0.90);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 8px rgba(74, 55, 40, 0.05);
}
.site-header .container{
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand{
  display: flex;
  align-items: center;
  gap: var(--unit);
}
.brand-mark{
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  color: var(--secondary-fixed-dim);
  flex-shrink: 0;
}
.brand-mark svg{ width: 100%; height: 100%; }
.brand-title{
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 20px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.header-nav{
  display: none;
  align-items: center;
  gap: 36px;
  margin-left: 32px;
}
.header-nav a{
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.header-nav a:hover,
.header-nav a.active{
  color: var(--primary);
  border-color: var(--secondary-fixed-dim);
}

.header-right{
  display: flex;
  align-items: center;
  gap: 16px;
}
.icon-btn{
  position: relative;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: none;
  color: var(--primary);
  border-radius: var(--radius-full);
  transition: background .2s ease;
}
.icon-btn:hover{ background: var(--surface-container-high); }

.cart-badge{
  position: absolute;
  top: 2px; right: 2px;
  min-width: 16px; height: 16px;
  padding: 0 3px;
  background: var(--secondary-fixed-dim);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  line-height: 1;
}

.header-signin-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #ffffff;
  border: 1px solid var(--primary);
  transition: all .2s ease;
}
.header-signin-btn:hover{
  background: var(--primary-container);
  border-color: var(--primary-container);
}

.avatar-link{ display: flex; align-items: center; justify-content: center; position: relative; }
.avatar{
  width: 40px; height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-container-high);
  border: 2px solid var(--secondary-fixed-dim);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.avatar:hover{ transform: scale(1.06); border-color: var(--primary); }

.avatar-status{
  position: absolute;
  bottom: 0; right: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid var(--surface);
}
.avatar-status.online{ background: #22c55e; }
.avatar-status.offline{ background: #9ca3af; }

.back-btn{
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: none; color: var(--primary);
  margin-left: -8px;
  border-radius: var(--radius-full);
}
.back-btn:hover{ background: var(--surface-container-high); }
.back-btn svg{ width: 22px; height: 22px; }

@media (min-width: 900px){
  .header-nav{ display: flex; }
}

main{
  min-height: 100vh;
  padding-top: var(--header-h);
  padding-bottom: 110px;
}
@media (min-width: 900px){
  main{ padding-bottom: 60px; }
}

/* ---------- Mobile nav ---------- */
.bottom-nav{
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.94);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(74,55,40,0.08);
  display: flex;
  padding: 10px var(--margin-mobile) calc(10px + env(safe-area-inset-bottom, 0px));
}
@media (min-width: 900px){
  .bottom-nav{ display: none; }
}
.bottom-nav a{
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--on-surface-variant);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
}
.bottom-nav a svg{ width: 22px; height: 22px; }
.bottom-nav a.active{ color: var(--secondary); }
.bottom-nav a .nav-badge{
  position: absolute;
  top: -2px; right: 22%;
  min-width: 14px; height: 14px;
  padding: 0 3px;
  background: var(--secondary-fixed-dim);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 9px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  transition: transform .15s ease, background .2s ease, opacity .2s ease;
  white-space: nowrap;
}
.btn:active{ transform: scale(0.97); }
.btn-primary{ background: var(--primary); color: var(--on-primary); }
.btn-primary:hover{ background: var(--primary-container); }
.btn-gold{ background: var(--primary); color: var(--secondary-fixed-dim); }
.btn-gold:hover{ background: var(--on-primary-fixed-variant); }
.btn-outline{
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-outline:hover{ background: var(--surface-container-low); }
.btn-danger{
  background: transparent;
  color: var(--error);
  border: 1px solid var(--error);
}
.btn-danger:hover{ background: #fef2f2; }
.btn-ghost{ background: transparent; color: var(--secondary); padding: 8px 4px; }
.btn-ghost:hover{ text-decoration: underline; }
.btn-block{ width: 100%; }
.btn[disabled]{ opacity: .5; cursor: not-allowed; }

/* Botões Compactos para Detalhes do Livro Adquirido */
.book-detail-actions{
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.book-action-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all .2s ease;
  cursor: pointer;
}
.book-action-btn svg{
  width: 16px;
  height: 16px;
}
.book-action-btn-primary{
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.book-action-btn-primary:hover{
  background: var(--primary-container);
}
.book-action-btn-outline{
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.book-action-btn-outline:hover{
  background: var(--surface-container-low);
}

/* ---------- Chips & Tags ---------- */
.chip-row{
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.chip{
  flex-shrink: 0;
  padding: 11px 22px;
  border-radius: var(--radius-full);
  background: var(--surface-container);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: none;
  transition: background .2s ease, color .2s ease;
}
.chip:hover{ background: var(--surface-container-high); }
.chip.active{ background: var(--primary); color: var(--on-primary); }

.tag{
  display: inline-block;
  padding: 6px 14px;
  background: var(--surface-container);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rule{
  height: 1px;
  background: var(--primary);
  opacity: 0.1;
  border: none;
  width: 100%;
}
.rule-gold{
  height: 1px;
  width: 48px;
  background: var(--secondary-fixed-dim);
  border: none;
  margin: 0 auto;
}

/* ---------- Home / Shop Views ---------- */
.welcome{ padding: 40px 0 48px; }
@media (min-width: 900px){
  .welcome{ padding: 64px 0 56px; text-align: left; }
}
.welcome p{ max-width: 320px; margin-top: 8px; }

.featured-card{
  position: relative;
  background: var(--surface-container-low);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: background .3s ease;
  cursor: pointer;
}
.featured-card:hover{ background: var(--surface-container-high); }
.featured-card::before{
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--secondary-fixed-dim);
  opacity: .85;
  z-index: 2;
}
.featured-inner{ display: flex; flex-direction: column; }
@media (min-width: 800px){
  .featured-inner{ flex-direction: row; min-height: 420px; }
}
.featured-media{
  width: 100%;
  height: 260px;
  background: var(--surface-dim);
  position: relative;
  overflow: hidden;
}
@media (min-width: 800px){
  .featured-media{ width: 50%; height: auto; }
}
.featured-media img{ position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.featured-body{
  padding: 28px 24px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}
@media (min-width: 800px){
  .featured-body{ width: 50%; padding: 48px; }
}
.featured-meta{ display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.star-icon{ width: 18px; height: 18px; color: var(--secondary-fixed-dim); }
.featured-body h2{ margin: 4px 0 6px; }
.featured-body .author{ font-style: italic; color: var(--on-surface-variant); font-family: var(--font-serif); font-size: 20px; margin-bottom: 12px; }
.featured-body p.desc{ color: var(--on-surface-variant); margin-bottom: 20px; max-width: 44ch; }

.row-head{ display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.scroll-row{
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px var(--margin-mobile) 14px;
  margin: 0 calc(var(--margin-mobile) * -1);
  scroll-snap-type: x mandatory;
}
@media (min-width: 900px){
  .scroll-row{ margin: 0; padding: 4px 0 14px; }
}

.book-card{ flex: 0 0 160px; scroll-snap-align: start; cursor: pointer; }
.book-cover{
  position: relative;
  width: 100%;
  aspect-ratio: 2/3;
  background: var(--surface-container-high);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
  transition: transform .35s ease, box-shadow .3s ease;
}
.book-card:hover .book-cover{ transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.book-cover img{ position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.book-cover .frame{ position: absolute; inset: 4px; border: 1px solid rgba(233,195,73,0.3); pointer-events: none; }
.book-card h4{ font-family: var(--font-serif); font-weight: 600; font-size: 17px; color: var(--primary); margin: 0 0 4px; line-height: 1.25; }
.book-card .author{ font-size: 13px; color: var(--on-surface-variant); margin: 0 0 6px; }
.book-card .price{ font-size: 12px; font-weight: 700; letter-spacing: .05em; color: var(--primary); }

.book-grid{ display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 16px; }
@media (min-width: 640px){ .book-grid{ grid-template-columns: repeat(3, 1fr); gap: 28px 24px; } }
@media (min-width: 1000px){ .book-grid{ grid-template-columns: repeat(4, 1fr); } }
.book-grid .book-card{ flex: initial; }
.book-grid .book-cover{ box-shadow: var(--shadow-lg); }
.book-grid .book-card .meta{ text-align: center; padding: 0 4px; }
.book-grid .book-card .price{ color: var(--secondary); font-family: var(--font-sans); font-size: 15px; font-weight: 400; }

.collections{ display: flex; flex-direction: column; gap: 16px; }
@media (min-width: 700px){ .collections{ flex-direction: row; } }
.collection-tile{
  position: relative;
  height: 140px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex: 1;
  cursor: pointer;
}
.collection-tile img{ position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.collection-tile:hover img{ transform: scale(1.06); }
.collection-tile::after{ content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(26,20,10,0.15), rgba(26,20,10,0.55)); }
.collection-tile span{
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: var(--font-serif); font-size: 26px; font-weight: 600; z-index: 1;
}

.shop-hero{ text-align: center; padding: 32px 0 24px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.shop-hero p{ max-width: 480px; color: var(--on-surface-variant); margin-top: 6px; }
.center-cta{ display: flex; justify-content: center; margin-top: 36px; }

/* ---------- Product detail ---------- */
.product-hero{ width: 100%; aspect-ratio: 3/4; background: var(--surface-container-high); position: relative; overflow: hidden; border-radius: var(--radius-lg); }
@media (min-width: 900px){ .product-hero{ aspect-ratio: 4/5; } }
.product-hero img{ position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.product-layout{ display: flex; flex-direction: column; }
@media (min-width: 900px){
  .product-layout{ flex-direction: row; gap: 56px; align-items: flex-start; padding-top: 32px; }
  .product-layout .product-hero{ flex: 0 0 42%; position: sticky; top: calc(var(--header-h) + 24px); }
  .product-layout .product-info{ flex: 1; padding-top: 8px; }
}
.product-title-block{ text-align: center; margin: 28px 0 30px; }
@media (min-width: 900px){ .product-title-block{ text-align: left; } }
.product-title-block .author{ font-style: italic; color: var(--on-surface-variant); font-size: 18px; margin-top: 6px; }

.product-actions{
  display: flex; flex-direction: column; align-items: center; gap: 22px;
  padding: 24px 0; border-top: 1px solid rgba(50,34,20,0.1); border-bottom: 1px solid rgba(50,34,20,0.1);
  margin-bottom: 32px;
}
@media (min-width: 900px){ .product-actions{ align-items: flex-start; } }
.product-price{ font-family: var(--font-serif); font-size: 24px; color: var(--secondary-fixed-dim); font-weight: 600; }
.product-actions .btn{ width: 100%; max-width: 320px; height: 50px; }
.tag-row{ display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
@media (min-width: 900px){ .tag-row{ justify-content: flex-start; } }
.product-description{ margin-bottom: var(--section-gap); }
.product-description p{ color: var(--on-surface-variant); }
.section-title-line{ display: flex; align-items: center; gap: 16px; margin-bottom: 28px; }
.section-title-line .rule{ flex: 1; }
.cross-sell{ display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (min-width: 700px){ .cross-sell{ grid-template-columns: repeat(4, 1fr); } }

/* ---------- Cart ---------- */
.cart-head{ padding: 8px 0 24px; }
.cart-head p{ color: var(--on-surface-variant); }
.cart-list{ display: flex; flex-direction: column; gap: 24px; }
.cart-item{ display: flex; gap: 16px; }
.cart-item img{ width: 96px; height: 96px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow-sm); background: var(--surface-container-high); flex-shrink: 0; }
.cart-item-body{ flex: 1; display: flex; flex-direction: column; justify-content: space-between; min-width: 0; }
.cart-item-body h2{ font-size: 18px; margin: 0 0 4px; }
.cart-item-body .variant{ color: var(--on-surface-variant); font-size: 14px; margin: 0; }
.cart-item-row{ display: flex; align-items: center; justify-content: space-between; margin-top: 8px; }
.cart-item-row .price{ font-family: var(--font-sans); font-size: 18px; color: var(--primary); }
.qty-control{ display: flex; align-items: center; gap: 12px; }
.qty-btn{ width: 32px; height: 32px; border-radius: 50%; border: 1px solid rgba(50,34,20,0.2); background: transparent; color: var(--primary); display: flex; align-items: center; justify-content: center; transition: background .2s ease; }
.qty-btn:hover{ background: var(--surface-container-low); }
.qty-btn svg{ width: 14px; height: 14px; }
.qty-val{ width: 18px; text-align: center; font-weight: 500; }
.remove-btn{ background: none; border: none; color: var(--outline); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; padding: 0; margin-top: 6px; text-decoration: underline; }
.remove-btn:hover{ color: var(--error); }
.order-summary{ background: var(--surface-container-low); border-radius: var(--radius-lg); padding: 28px 24px; margin-top: 40px; }
.order-summary h2{ margin: 0 0 20px; }
.summary-row{ display: flex; justify-content: space-between; padding: 8px 0; color: var(--on-surface-variant); }
.summary-row .amt{ color: var(--secondary); font-weight: 500; }
.summary-total{ display: flex; justify-content: space-between; padding-top: 14px; margin-top: 6px; border-top: 1px solid rgba(50,34,20,0.12); font-family: var(--font-serif); font-size: 20px; font-weight: 600; color: var(--primary); }
.summary-total .amt{ color: var(--secondary-fixed-dim); }
.order-summary .btn{ margin-top: 22px; }
.secure-note{ text-align: center; color: var(--outline); font-size: 12px; margin-top: 12px; }
.empty-state{ text-align: center; padding: 60px 20px; color: var(--on-surface-variant); }
.empty-state svg{ width: 56px; height: 56px; color: var(--outline-variant); margin-bottom: 16px; }

/* ---------- AUTH BOX ---------- */
.auth-box{
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  box-shadow: var(--shadow-md);
  max-width: 480px;
  margin: 40px auto 0;
}
.auth-nav-tabs{
  display: flex;
  border-bottom: 2px solid var(--surface-container-high);
  margin-bottom: 24px;
}
.auth-tab-btn{
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all .2s ease;
}
.auth-tab-btn.active{
  color: var(--primary);
  border-bottom-color: var(--secondary-fixed-dim);
}

/* ---------- PROFILE TABS (SEPARAÇÃO DAS SEÇÕES) ---------- */
.profile-card{
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-md);
  margin-bottom: 32px;
}
.profile-subnav{
  display: flex;
  gap: 24px;
  overflow-x: auto;
  border-bottom: 2px solid var(--surface-container-high);
  margin-bottom: 32px;
  padding-bottom: 4px;
}
.profile-subnav-btn{
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  padding: 12px 4px;
  border-bottom: 3px solid transparent;
  margin-bottom: -6px;
  transition: all .2s ease;
  white-space: nowrap;
}
.profile-subnav-btn:hover{ color: var(--primary); }
.profile-subnav-btn.active{
  color: var(--primary);
  border-bottom-color: var(--secondary-fixed-dim);
}

.profile-section-title{
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 6px;
}
.profile-section-desc{
  font-size: 13px;
  color: var(--on-surface-variant);
  margin: 0 0 24px;
}

.profile-header-banner{
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}
@media (max-width: 600px){
  .profile-header-banner{ flex-direction: column; text-align: center; }
}

/* Foto Clicável de Perfil com Overlay Sutil */
.avatar-clickable-wrapper{
  position: relative;
  display: inline-block;
  cursor: pointer;
  border-radius: 50%;
}
.profile-avatar-large{
  width: 96px; height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--secondary-fixed-dim);
  box-shadow: var(--shadow-md);
  background: var(--surface-container-high);
  transition: transform .2s ease, filter .2s ease;
  display: block;
}
.avatar-clickable-wrapper:hover .profile-avatar-large{
  transform: scale(1.03);
  filter: brightness(0.85);
}
.avatar-hover-overlay{
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(50, 34, 20, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0;
  transition: opacity .2s ease;
}
.avatar-hover-overlay svg{
  width: 26px;
  height: 26px;
}
.avatar-clickable-wrapper:hover .avatar-hover-overlay{
  opacity: 1;
}
.avatar-file-input{
  display: none;
}

.avatar-hint-text{
  font-size: 12px;
  color: var(--outline);
  margin-top: 4px;
}

.badge-member{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface-container);
  color: var(--secondary);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

/* Form Styles */
.form-grid{ display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 600px){ .form-grid.two-col{ grid-template-columns: 1fr 1fr; } }
.form-group{ display: flex; flex-direction: column; gap: 6px; text-align: left; }
.form-label{ font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary); }
.form-control{
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 14px;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  color: var(--on-surface);
  transition: border-color .2s ease, background .2s ease;
}
.form-control:focus{ outline: none; border-color: var(--primary); background: #ffffff; }

.radio-group{ display: flex; gap: 16px; margin-top: 4px; }
.radio-card{
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background: var(--surface-container-low);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  transition: all .2s ease;
}
.radio-card input{ display: none; }
.radio-card.active{
  border-color: var(--secondary-fixed-dim);
  background: var(--surface-container-lowest);
  box-shadow: 0 0 0 1px var(--secondary-fixed-dim);
}
.card-fields-box{
  background: var(--surface-container-low);
  border: 1px dashed var(--outline-variant);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 12px;
}

/* Mostruário Top 3 */
.top3-showcase{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 16px 0 24px;
}
@media (max-width: 600px){ .top3-showcase{ grid-template-columns: 1fr; } }
.top3-card{
  position: relative;
  background: var(--surface-container-low);
  border-radius: var(--radius);
  padding: 12px;
  text-align: center;
  border: 1px solid var(--outline-variant);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.top3-rank{
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary-fixed-dim);
  color: var(--primary);
  font-weight: 700;
  font-size: 10px;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-sm);
}
.top3-card img{ width: 70px; height: 105px; object-fit: cover; border-radius: var(--radius-sm); margin: 12px 0 8px; box-shadow: var(--shadow-sm); }
.top3-card h5{ font-family: var(--font-serif); font-size: 13px; margin: 0 0 2px; color: var(--primary); }
.top3-card p{ font-size: 11px; color: var(--on-surface-variant); margin: 0; }

/* Grid de Meus Livros */
.my-library-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (min-width: 640px){ .my-library-grid{ grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px){ .my-library-grid{ grid-template-columns: repeat(4, 1fr); } }

.my-book-card{
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
}
.my-book-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); }
.my-book-cover{
  width: 100%;
  aspect-ratio: 2/3;
  border-radius: var(--radius);
  object-fit: cover;
  margin-bottom: 12px;
}

/* ---------- LEITOR FULLSCREEN & BOTÕES FLUTUANTES LATERAIS ---------- */
.full-reader-container{
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 0 60px;
  position: relative;
}
.reader-toolbar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(50,34,20,0.12);
  margin-bottom: 28px;
}
.reader-page-paper{
  background: #ffffff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-md);
  min-height: 540px;
  position: relative;
}
@media (max-width: 600px){
  .reader-page-paper{ padding: 28px 20px; }
}
.reader-text-body{
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.9;
  color: var(--primary);
  user-select: text;
  text-align: justify;
}
.reader-text-body p{
  margin-bottom: 24px;
  position: relative;
}
.paragraph-marker{
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--outline);
  font-weight: 700;
  margin-right: 8px;
  user-select: none;
}

/* Botões Flutuantes Laterais de Navegação */
.floating-nav-btn{
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  color: var(--primary);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s ease;
  cursor: pointer;
}
.floating-nav-btn:hover:not([disabled]){
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-50%) scale(1.08);
}
.floating-nav-btn.left{
  left: 24px;
}
.floating-nav-btn.right{
  right: 24px;
}
.floating-nav-btn[disabled]{
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}
@media (max-width: 990px){
  .floating-nav-btn.left{ left: 10px; width: 40px; height: 40px; }
  .floating-nav-btn.right{ right: 10px; width: 40px; height: 40px; }
}

.reader-bottom-info{
  text-align: center;
  margin-top: 24px;
  font-size: 13px;
  color: var(--outline);
}

/* Botão Flutuante de Citação */
.floating-quote-btn{
  position: absolute;
  z-index: 9999;
  background: var(--primary);
  color: var(--secondary-fixed-dim);
  border: 1px solid var(--secondary-fixed-dim);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transform: translate(-50%, -120%);
  animation: popIn .15s ease;
}
.floating-quote-btn:hover{
  background: var(--primary-container);
}
@keyframes popIn {
  from{ opacity: 0; transform: translate(-50%, -100%) scale(0.9); }
  to{ opacity: 1; transform: translate(-50%, -120%) scale(1); }
}

/* Marcações / Citações */
.annotations-list{
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}
.annotation-item{
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-left: 4px solid var(--secondary-fixed-dim);
  padding: 16px 20px;
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}
.annotation-meta-badge{
  display: inline-block;
  background: var(--surface-container);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  letter-spacing: .05em;
}

/* Toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 100px;
  transform: translate(-50%, 20px);
  background: var(--primary);
  color: var(--secondary-fixed-dim);
  padding: 14px 24px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 10000;
  white-space: nowrap;
}
.toast.show{ opacity: 1; transform: translate(-50%, 0); }
@media (min-width: 900px){ .toast{ bottom: 32px; } }

.flex{ display: flex; }
.items-center{ align-items: center; }
.justify-center{ justify-content: center; }
.gap-2{ gap: 8px; }
.text-center{ text-align: center; }
.mb-0{ margin-bottom: 0 !important; }