/* =========================================================
   VIENKETOAN — Landing page stylesheet
   Bảng màu lấy từ logo: navy #232E7C · royal #2B3AC0 · cam #F5821F
   ========================================================= */

:root {
  --navy-900: #151B4E;
  --navy-800: #1B2264;
  --navy-700: #232E7C;   /* màu chủ đạo trong logo */
  --royal:    #2B3AC0;   /* viền kim cương */
  --orange:   #F5821F;   /* đường xu hướng cam — chỉ dùng trang trí & trên nền navy */
  --orange-d: #DD6F0C;
  --orange-text: #B45309; /* cam đậm cho CHỮ trên nền sáng (đạt WCAG AA 5.02:1) */
  --orange-bg:#FEF2E5;

  --ink:   #20264A;
  --muted: #5B617C;
  --line:  #E3E7F4;
  --soft:  #F5F7FD;
  --white: #FFFFFF;

  --font-head: "Lora", Georgia, "Times New Roman", serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", Arial, sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 32px rgba(27, 34, 100, 0.10);
  --shadow-lg: 0 24px 60px rgba(27, 34, 100, 0.16);
  --container: 1160px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2, h3, h4 {
  font-family: var(--font-head); color: var(--navy-800); line-height: 1.25; margin: 0 0 .5em;
  text-wrap: balance; /* chia dòng cân đối, tránh 1 từ rơi lẻ xuống dòng cuối */
}
p, li, blockquote { text-wrap: pretty; }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; }
a { color: var(--royal); text-decoration: none; }
ul, ol, dl, blockquote, figure { margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
section[id], div[id="dang-ky"] { scroll-margin-top: 90px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 820px; }

/* Chữ nghiêng nhấn mạnh trong heading → cam đậm trên nền sáng, cam tươi trên nền navy */
h2 em, h1 em { font-style: italic; color: var(--orange-text); }
.section--navy h2 em, .cta-card h2 em { color: var(--orange); }

/* ---------- Nút ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 2px solid transparent; border-radius: 999px;
  padding: 12px 26px; font-size: 1rem; font-weight: 600; line-height: 1.2;
  text-align: center; transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: linear-gradient(180deg, var(--orange), var(--orange-d));
  color: var(--navy-900); box-shadow: 0 8px 20px rgba(245, 130, 31, 0.35);
}
.btn--primary:hover { box-shadow: 0 10px 26px rgba(245, 130, 31, 0.5); transform: translateY(-1px); }
.btn--ghost {
  background: transparent; color: var(--navy-700); border-color: var(--navy-700);
}
.btn--ghost:hover { background: var(--navy-700); color: #fff; }
.btn--outline {
  background: #fff; color: var(--navy-700); border-color: var(--line);
}
.btn--outline:hover { border-color: var(--navy-700); }
.btn--lg { padding: 15px 32px; font-size: 1.05rem; }
.btn--sm { padding: 9px 18px; font-size: .92rem; }
.btn--block { width: 100%; white-space: normal; }
.btn--locked {
  background: var(--soft); color: var(--muted); border-color: var(--line); cursor: pointer;
}
.btn--locked:hover { border-color: var(--orange); color: var(--orange-text); }

/* ---------- Eyebrow ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .82rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--royal); margin-bottom: 14px;
}
.eyebrow--center { justify-content: center; }
.eyebrow--orange { color: var(--orange); }

/* ---------- Thanh thông báo ---------- */
.announce { background: var(--navy-900); color: #DDE2FF; font-size: .88rem; }
.announce__inner { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 8px 24px; }
.announce p { margin: 0; }
.announce strong { color: #fff; }
.announce__dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--orange); flex: none;
  box-shadow: 0 0 0 0 rgba(245,130,31,.6); animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(245,130,31,.55); }
  70% { box-shadow: 0 0 0 8px rgba(245,130,31,0); }
  100% { box-shadow: 0 0 0 0 rgba(245,130,31,0); }
}

/* ---------- Header ---------- */
/* Lưu ý: KHÔNG đặt backdrop-filter trực tiếp lên .header — nó biến header thành
   containing block của nav drawer position:fixed (vỡ menu mobile). Blur nằm ở ::before.
   z-index 80 để nav drawer bên trong thắng .mobile-bar (70) khi mở. */
.header {
  position: sticky; top: 0; z-index: 80;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s;
}
.header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  backdrop-filter: blur(10px);
}
.header.is-scrolled { border-color: var(--line); box-shadow: 0 6px 24px rgba(27,34,100,.08); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__icon { width: 44px; height: 44px; }
.brand__word {
  font-family: var(--font-head); font-weight: 700; font-size: 1.5rem; color: var(--navy-700); letter-spacing: .01em;
}
.brand__word em { font-style: normal; color: var(--orange); }

.nav { display: flex; align-items: center; gap: 26px; }
.nav__link { color: var(--ink); font-weight: 500; font-size: .97rem; position: relative; }
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--orange); transition: width .2s;
}
.nav__link:hover::after { width: 100%; }
.nav__cta { margin-left: 6px; }

.nav-toggle { display: none; background: none; border: 0; padding: 10px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy-700); margin: 5px 0; border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 64px 0 40px; }
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__diamond {
  position: absolute; border: 2px solid rgba(43,58,192,.14); transform: rotate(45deg); border-radius: 18px;
}
.hero__diamond--1 { width: 320px; height: 320px; top: -120px; right: -80px; border-width: 3px; }
.hero__diamond--2 { width: 180px; height: 180px; bottom: 60px; left: -70px; }
.hero__diamond--3 { width: 90px; height: 90px; top: 90px; left: 42%; border-color: rgba(245,130,31,.2); }

.hero__inner {
  position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 48px; align-items: center;
}
.hero__title mark { background: none; color: var(--orange-text); }
.hero__sub { font-size: 1.08rem; color: var(--muted); max-width: 54ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 26px 0 20px; }
.hero__points { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: .92rem; color: var(--muted); }
.hero__points li { position: relative; padding-left: 20px; }
.hero__points li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--orange-text); font-weight: 700;
}

/* Kệ sách hero — shelf phủ absolute lên visual để height 100% luôn resolve
   (min-height trên cha không cho height:100% của con giá trị xác định) */
.hero__visual { position: relative; min-height: 420px; }
.hero__shelf {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
}
.hero__shelf .cover {
  width: 200px; position: absolute; box-shadow: var(--shadow-lg);
  transition: transform .3s ease;
}
.hero__shelf .cover:nth-child(1) { transform: rotate(-8deg) translateX(-120px) scale(.92); z-index: 1; }
.hero__shelf .cover:nth-child(2) { transform: rotate(0deg) translateY(-10px); z-index: 3; width: 220px; }
.hero__shelf .cover:nth-child(3) { transform: rotate(8deg) translateX(120px) scale(.92); z-index: 2; }

.hero__chip {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 10px 14px; font-size: .8rem; line-height: 1.35; color: var(--muted);
  box-shadow: var(--shadow); z-index: 4;
}
.hero__chip strong { color: var(--navy-700); }
.hero__chip-ico {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  display: grid; place-items: center; font-size: 1.05rem;
  background: var(--orange-bg); color: var(--orange-d);
}
.hero__chip--update { top: 8%; right: 2%; animation: floaty 5s ease-in-out infinite; }
.hero__chip--gift { bottom: 6%; left: 4%; animation: floaty 5s 1.2s ease-in-out infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- Dải số liệu ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-top: 56px; box-shadow: var(--shadow);
}
.stats__item { background: #fff; text-align: center; padding: 22px 12px; }
.stats__item dt { font-family: var(--font-head); font-size: 1.6rem; font-weight: 700; color: var(--navy-700); }
.stats__item dd { margin: 2px 0 0; font-size: .88rem; color: var(--muted); }

/* ---------- Section chung ---------- */
.section { padding: 88px 0; }
.section--soft { background: var(--soft); }
.section__head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section__desc { color: var(--muted); font-size: 1.03rem; }

.section--navy { background: linear-gradient(180deg, var(--navy-800), var(--navy-900)); }
.section__head--onnavy h2 { color: #fff; }
.section__head--onnavy .section__desc { color: #B9C0E8; }

.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- Quyền lợi ---------- */
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; transition: transform .2s, box-shadow .2s;
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature__icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
  display: grid; place-items: center; color: var(--orange-d);
  background: var(--orange-bg); transform: rotate(45deg);
}
.feature__icon svg { width: 24px; height: 24px; transform: rotate(-45deg); }
.feature h3 { margin-bottom: 8px; }
.feature p { margin: 0; font-size: .94rem; color: var(--muted); }

/* ---------- Các bước ---------- */
.steps {
  list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  counter-reset: step; max-width: 1020px; margin: 0 auto;
}
.step {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 26px 26px; box-shadow: var(--shadow);
}
.step__num {
  position: absolute; top: -22px; left: 26px;
  width: 44px; height: 44px; display: grid; place-items: center;
  background: linear-gradient(180deg, var(--orange), var(--orange-d)); color: var(--navy-900);
  font-family: var(--font-head); font-size: 1.2rem; font-weight: 700; line-height: 1;
  transform: rotate(45deg); border-radius: 12px; box-shadow: 0 8px 18px rgba(245,130,31,.4);
}
.step__num i { font-style: normal; transform: rotate(-45deg); }
.step h3 { margin-top: 8px; }
.step p { margin: 0; font-size: .95rem; color: var(--muted); }

/* ---------- Trạng thái lượt chọn ---------- */
.pick-status {
  display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
  background: var(--orange-bg); border: 1px dashed var(--orange);
  border-radius: var(--radius-sm); padding: 12px 18px; margin-bottom: 28px;
  font-size: .95rem; color: var(--ink); text-align: center;
}
.pick-status strong { color: var(--orange-text); }
.pick-status.is-picked { background: #EDF9F0; border-color: #2E9E5B; }
.pick-status.is-picked strong { color: #1E6E3F; }

/* ---------- Bộ lọc ---------- */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 36px; }
.filter {
  border: 1.5px solid var(--line); background: #fff; color: var(--muted);
  border-radius: 999px; padding: 9px 20px; font-size: .93rem; font-weight: 600;
  transition: all .18s ease;
}
.filter:hover { border-color: var(--navy-700); color: var(--navy-700); }
.filter.is-active {
  background: var(--navy-700); border-color: var(--navy-700); color: #fff;
  box-shadow: 0 6px 16px rgba(35,46,124,.3);
}

/* ---------- Thẻ ebook ---------- */
.book {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .2s, box-shadow .2s;
}
.book:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.book.is-hidden { display: none; }

.book__coverwrap { position: relative; padding: 26px 26px 0; background: linear-gradient(180deg, var(--soft), #fff); }
.book__badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: var(--orange); color: var(--navy-900); font-size: .72rem; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px;
  box-shadow: 0 4px 12px rgba(245,130,31,.4);
}
.book__free {
  position: absolute; top: 14px; right: 14px; z-index: 2;
  background: #23824A; color: #fff; font-size: .72rem; font-weight: 700;
  padding: 5px 12px; border-radius: 999px; box-shadow: 0 4px 12px rgba(35,130,74,.4);
}
.book__badge--member {
  background: var(--navy-700); color: #fff;
  box-shadow: 0 4px 12px rgba(35,46,124,.4);
}
.book--member { border-color: rgba(35,46,124,.35); }
.book--member .book__coverwrap { background: linear-gradient(180deg, #EEF1FB, #fff); }

.book__body { display: flex; flex-direction: column; flex: 1; padding: 18px 22px 22px; }
.book__meta { font-size: .8rem; color: var(--muted); letter-spacing: .02em; margin-bottom: 6px; }
.book__meta b { color: var(--royal); font-weight: 600; }
.book__title { font-size: 1.08rem; margin-bottom: 6px; }
.book__desc { font-size: .9rem; color: var(--muted); margin: 0 0 16px; flex: 1; }
.book__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.book__actions .btn { white-space: normal; padding-left: 10px; padding-right: 10px; }

/* ---------- Bìa ebook (CSS thuần) ---------- */
.cover {
  aspect-ratio: 3 / 4; width: 100%; border-radius: 10px 14px 14px 10px; position: relative;
  display: flex; flex-direction: column; padding: 20px 18px; overflow: hidden;
  box-shadow: 0 14px 30px rgba(21,27,78,.22);
}
.cover::before { /* gáy sách */
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 7px;
  background: rgba(0,0,0,.18);
}
.cover::after { /* kim cương chìm */
  content: ""; position: absolute; right: -34px; bottom: -34px; width: 130px; height: 130px;
  border: 2.5px solid currentColor; opacity: .18; transform: rotate(45deg); border-radius: 16px;
}
.cover__cat {
  font-size: .62rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  padding-bottom: 8px; margin-bottom: 12px; border-bottom: 2px solid var(--orange);
  align-self: flex-start;
}
.cover__title {
  font-family: var(--font-head); font-weight: 700; font-size: clamp(.95rem, 1.4vw, 1.12rem);
  line-height: 1.3; flex: 1;
}
.cover__brand {
  display: flex; align-items: center; gap: 6px;
  font-size: .6rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; opacity: .85;
}
.cover__brand::before {
  content: ""; width: 8px; height: 8px; transform: rotate(45deg); background: var(--orange); flex: none;
}

/* Bìa dùng ảnh thật từ Heyzine */
.cover--img { padding: 0; background: var(--soft); }
.cover--img::after { content: none; }
.cover--img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.cover--v1 { background: linear-gradient(160deg, var(--navy-700) 0%, var(--navy-900) 100%); color: #fff; }
.cover--v1 .cover__cat { color: #FFD9B3; }
.cover--v2 { background: linear-gradient(160deg, #FFFFFF 0%, #E9EEFB 100%); color: var(--navy-700); border: 1px solid var(--line); }
.cover--v2 .cover__cat { color: var(--royal); }
.cover--v3 { background: linear-gradient(160deg, var(--orange) 0%, #C85F05 100%); color: #fff; }
.cover--v3 .cover__cat { color: #fff; border-bottom-color: #fff; }
.cover--v3 .cover__brand::before { background: var(--navy-700); }

/* ---------- Bảng giá ---------- */
.pricing {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px;
  max-width: 1120px; margin: 0 auto; align-items: stretch;
}
.plan {
  background: #fff; border-radius: var(--radius); padding: 34px 26px; box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
}
.plan .plan__list { flex: 1; }
.plan__name { font-size: 1.2rem; margin-bottom: 4px; }
.plan__price { font-family: var(--font-head); color: var(--navy-800); margin: 0; }
.plan__price strong { font-size: 2.3rem; font-weight: 700; }
.plan__price span { color: var(--muted); font-size: 1rem; }
.plan__note { color: var(--muted); font-size: .9rem; margin: 4px 0 20px; }
.plan__list { list-style: none; margin-bottom: 26px; display: grid; gap: 11px; }
/* KHÔNG dùng display:flex ở đây — mỗi <strong> trong câu sẽ bị tách thành
   một flex item riêng và làm vỡ dòng chữ. Dùng ::before định vị tuyệt đối. */
.plan__list li { position: relative; padding-left: 26px; font-size: .95rem; }
.plan__list li::before { position: absolute; left: 1px; top: 0; font-weight: 700; }
.plan__list .is-yes::before { content: "✓"; color: #23824A; }
.plan__list .is-no { color: #9AA0B8; }
.plan__list .is-no::before { content: "—"; color: #C4C9DC; }

.plan--hot { position: relative; border: 2.5px solid var(--orange); }

/* Gói Pro — thẻ navy nổi bật, tách biệt với gói 500K màu cam */
.plan--pro {
  position: relative; border: 2.5px solid var(--royal);
  background: linear-gradient(165deg, var(--navy-700) 0%, var(--navy-900) 100%);
  color: #E7EAFB;
}
.plan--pro .plan__name { color: #fff; }
.plan--pro .plan__price { color: #fff; }
.plan--pro .plan__price span { color: #B9C0E8; }
.plan--pro .plan__note { color: #B9C0E8; }
.plan--pro .plan__list li { color: #E7EAFB; }
.plan--pro .plan__list .is-yes::before { color: var(--orange); }
.plan--pro .plan__list strong { color: #fff; }
.plan--pro .plan__guarantee { color: #B9C0E8; }
.plan__inherit {
  font-size: .87rem; font-weight: 600; color: #FFD9B3;
  border-top: 1px solid rgba(255,255,255,.18); padding-top: 14px; margin: 0 0 14px;
}
.plan__flag--pro {
  background: linear-gradient(180deg, #4A5AD8, var(--royal)); color: #fff;
  box-shadow: 0 6px 16px rgba(43,58,192,.5);
}
.plan__flag {
  position: absolute; top: -16px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(180deg, var(--orange), var(--orange-d)); color: var(--navy-900);
  font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 6px 18px; border-radius: 999px; white-space: nowrap;
  box-shadow: 0 6px 16px rgba(245,130,31,.45);
}
.plan__guarantee { text-align: center; font-size: .85rem; color: var(--muted); margin: 14px 0 0; }
.plan__guarantee::before { content: "🛡 "; }

/* ---------- Cảm nhận ---------- */
.quote {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px;
  display: flex; flex-direction: column; gap: 14px; box-shadow: var(--shadow);
}
.quote__stars { color: var(--orange-text); letter-spacing: 3px; font-size: .95rem; }
.quote blockquote { font-size: .97rem; color: var(--ink); flex: 1; }
.quote blockquote::before { content: "“"; color: var(--orange); font-family: var(--font-head); font-size: 1.4rem; margin-right: 2px; }
.quote blockquote::after { content: "”"; color: var(--orange); font-family: var(--font-head); font-size: 1.4rem; margin-left: 2px; }
.quote figcaption { display: flex; flex-direction: column; font-size: .88rem; border-top: 1px solid var(--line); padding-top: 14px; }
.quote figcaption strong { color: var(--navy-700); }
.quote figcaption span { color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq__item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  overflow: hidden; transition: box-shadow .2s;
}
.faq__item[open] { box-shadow: var(--shadow); border-color: rgba(43,58,192,.35); }
.faq__item summary {
  list-style: none; cursor: pointer; padding: 18px 52px 18px 22px; position: relative;
  font-weight: 600; color: var(--navy-800); font-size: 1rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; translate: 0 -50%;
  width: 26px; height: 26px; display: grid; place-items: center;
  background: var(--soft); color: var(--navy-700); border-radius: 50%;
  font-weight: 700; transition: transform .2s, background .2s, color .2s;
}
.faq__item[open] summary::after { content: "−"; background: var(--orange); color: var(--navy-900); }
.faq__body { padding: 0 22px 20px; color: var(--muted); font-size: .95rem; }
.faq__body p { margin: 0; }

/* ---------- CTA + form ---------- */
.section--cta { padding-top: 0; }
.cta-card {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 48px; align-items: center;
  background: linear-gradient(135deg, var(--navy-700) 0%, var(--navy-900) 70%);
  border-radius: 24px; padding: 56px; position: relative; overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-card::before, .cta-card::after {
  content: ""; position: absolute; border: 2px solid rgba(255,255,255,.08); transform: rotate(45deg); border-radius: 20px;
}
.cta-card::before { width: 280px; height: 280px; right: -90px; top: -120px; }
.cta-card::after { width: 160px; height: 160px; left: -60px; bottom: -70px; border-color: rgba(245,130,31,.25); }
.cta-card__copy { position: relative; z-index: 1; }
.cta-card h2 { color: #fff; }
.cta-card p { color: #C3C9EE; }
.cta-card__points { list-style: none; display: grid; gap: 10px; margin-top: 18px; }
.cta-card__points li { position: relative; padding-left: 24px; color: #E7EAFB; font-size: .95rem; }
.cta-card__points li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--orange); font-weight: 700; }

.lead-form {
  position: relative; z-index: 1;
  background: #fff; border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-lg);
}
.lead-form h3 { margin-bottom: 18px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field label span { color: var(--orange-text); }
.field label .field__opt { color: var(--muted); font-weight: 400; }
.field input, .field select {
  width: 100%; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 14px; font-size: .97rem; font-family: inherit; color: var(--ink);
  transition: border-color .15s, box-shadow .15s; background: #fff;
}
.field select { cursor: pointer; appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--navy-700) 50%), linear-gradient(135deg, var(--navy-700) 50%, transparent 50%);
  background-position: calc(100% - 19px) calc(50% + 2px), calc(100% - 13px) calc(50% + 2px);
  background-size: 6px 6px, 6px 6px; background-repeat: no-repeat; padding-right: 38px;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--royal); box-shadow: 0 0 0 3px rgba(43,58,192,.14); }
.field input.is-error { border-color: #D93636; box-shadow: 0 0 0 3px rgba(217,54,54,.12); }
.field__err { color: #D93636; font-size: .8rem; margin-top: 4px; display: none; }
.field.has-error .field__err { display: block; }
.lead-form__note { font-size: .8rem; color: var(--muted); text-align: center; margin: 12px 0 0; }

/* ---------- Footer ---------- */
.footer { background: var(--navy-900); color: #AEB4DC; font-size: .92rem; }
.footer__inner {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; padding: 56px 24px 36px;
}
.footer__brand p { margin-top: 14px; max-width: 34ch; }
.footer__org { color: #fff; font-weight: 600; margin-bottom: 6px; letter-spacing: .04em; text-transform: uppercase; font-size: .82rem; }
.footer__org + p { margin-top: 0; font-style: italic; }
.brand--footer .brand__word { color: #fff; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h4 { color: #fff; font-size: .95rem; margin-bottom: 4px; }
.footer__col a { color: #AEB4DC; transition: color .15s; }
.footer__col a:hover { color: var(--orange); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; padding-bottom: 26px;
  font-size: .82rem; color: #7E85B4;
}
.footer__bottom p { margin: 0; }

/* ---------- Nút liên hệ nổi (Zalo OA + Hotline) ---------- */
.floating-contact {
  position: fixed; right: 18px; bottom: 22px; z-index: 75;
  display: flex; flex-direction: column; gap: 12px; align-items: flex-end;
}
.fab {
  display: inline-flex; align-items: center; gap: 0;
  border-radius: 999px; padding: 0; overflow: hidden;
  box-shadow: 0 8px 22px rgba(21,27,78,.28);
  transition: transform .18s ease, box-shadow .18s ease;
}
.fab:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(21,27,78,.36); }
.fab__ico {
  width: 54px; height: 54px; flex: none; display: grid; place-items: center;
  font-weight: 800; font-size: 1.05rem; letter-spacing: -.02em; color: #fff;
}
.fab__label {
  max-width: 0; opacity: 0; white-space: nowrap; overflow: hidden;
  font-size: .92rem; font-weight: 600; color: #fff;
  transition: max-width .28s ease, opacity .2s ease, padding .28s ease;
}
.fab:hover .fab__label, .fab:focus-visible .fab__label {
  max-width: 190px; opacity: 1; padding: 0 4px 0 18px;
}
.fab--zalo { background: #0068FF; }
.fab--zalo .fab__ico { font-size: .95rem; }
.fab--call { background: #0F9D58; }
.fab--call .fab__ico { font-size: 1.45rem; }
/* Nhịp đập nhẹ thu hút chú ý, tắt khi người dùng tắt hiệu ứng */
.fab--zalo::before {
  content: ""; position: absolute; inset: 0; border-radius: 999px;
  box-shadow: 0 0 0 0 rgba(0,104,255,.55); animation: fabPulse 2.4s infinite;
}
.fab { position: relative; }
@keyframes fabPulse {
  0%   { box-shadow: 0 0 0 0 rgba(0,104,255,.5); }
  70%  { box-shadow: 0 0 0 14px rgba(0,104,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,104,255,0); }
}

/* Khối liên hệ trực tiếp trong thẻ CTA */
.cta-card__direct { margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.16); }
.cta-card__direct p { color: #C3C9EE; font-size: .92rem; margin-bottom: 12px; }
.cta-card__contacts { display: flex; flex-wrap: wrap; gap: 12px; }
.contact-btn {
  display: inline-flex; align-items: center; gap: 11px;
  background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.22);
  border-radius: 14px; padding: 11px 16px; color: #E7EAFB; font-size: .84rem; line-height: 1.35;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.contact-btn:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.4); transform: translateY(-2px); }
.contact-btn strong { color: #fff; font-size: .95rem; }
.contact-btn__ico {
  width: 38px; height: 38px; flex: none; border-radius: 11px; display: grid; place-items: center;
  font-weight: 800; font-size: .8rem; color: #fff;
}
.contact-btn--zalo .contact-btn__ico { background: #0068FF; }
.contact-btn--call .contact-btn__ico { background: #0F9D58; font-size: 1.2rem; }

/* ---------- Thanh CTA mobile ---------- */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
  display: none; gap: 10px; padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-top: 1px solid var(--line); box-shadow: 0 -8px 24px rgba(27,34,100,.12);
}
.mobile-bar .btn { flex: 1; padding: 12px 8px; font-size: .9rem; white-space: normal; }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(21,27,78,.55); backdrop-filter: blur(4px); }
.modal__panel {
  position: relative; background: #fff; border-radius: 20px; width: 100%; max-width: 520px;
  max-height: calc(100vh - 40px); overflow: auto; box-shadow: var(--shadow-lg);
  animation: modalIn .25s ease;
}
.modal__panel--wide { max-width: 860px; }
@keyframes modalIn { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: none; } }
.modal__close {
  position: absolute; top: 14px; right: 14px; z-index: 5;
  width: 38px; height: 38px; border: 0; border-radius: 50%;
  background: var(--soft); color: var(--navy-700); font-size: 1.4rem; line-height: 1;
  display: grid; place-items: center; transition: background .15s, color .15s;
}
.modal__close:hover { background: var(--orange); color: #fff; }

/* ---------- Preview (đọc thử) ---------- */
.preview { display: grid; grid-template-columns: 280px 1fr; }
.preview__side {
  background: linear-gradient(170deg, var(--soft), #fff); padding: 34px 26px;
  display: flex; flex-direction: column; gap: 18px; border-right: 1px solid var(--line);
}
.preview__side .cover { max-width: 220px; }
.preview__meta { font-size: .85rem; color: var(--muted); display: grid; gap: 6px; }
.preview__meta b { color: var(--navy-700); }
.preview__page { padding: 34px 34px 30px; position: relative; }
.preview__pagenum {
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px;
}
.preview__page h3 { font-size: 1.35rem; margin-bottom: 4px; }
.preview__page h4 {
  font-size: .85rem; letter-spacing: .14em; text-transform: uppercase; color: var(--orange-d);
  margin: 22px 0 10px;
}
.preview__intro { color: var(--muted); font-size: .95rem; }
.preview__toc { list-style: none; display: grid; gap: 0; font-size: .93rem; }
.preview__toc li {
  padding: 9px 0 9px 24px; border-bottom: 1px dashed var(--line); position: relative; color: var(--ink);
}
.preview__toc li::before {
  content: ""; position: absolute; left: 4px; top: 16px; width: 8px; height: 8px;
  background: var(--orange); transform: rotate(45deg);
}
/* Vùng CTA dính đáy panel cuộn — luôn nhìn thấy dù mục lục dài (mobile) */
.preview__lockzone {
  position: sticky; bottom: 0; margin-top: -46px; padding-top: 58px; padding-bottom: 4px;
  text-align: center;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, #fff 40%);
}
.preview__lockzone p { font-size: .92rem; color: var(--muted); margin-bottom: 14px; }
.preview__lockzone strong { color: var(--navy-700); }
.preview__cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.preview__cta .btn { white-space: normal; }

/* ---------- Claim (nhận ebook miễn phí) ---------- */
.claim { padding: 34px 30px 30px; }
.privacy { padding: 34px 30px 30px; }
.privacy p { font-size: .93rem; color: var(--muted); }
.privacy strong { color: var(--navy-700); }
.linklike {
  background: none; border: 0; padding: 0; font: inherit; text-align: left;
  color: inherit; cursor: pointer;
}
.footer__col .linklike { color: #AEB4DC; transition: color .15s; }
.footer__col .linklike:hover { color: var(--orange); }
.claim__head { display: flex; gap: 18px; align-items: center; margin-bottom: 20px; }
.claim__head .cover { width: 86px; flex: none; padding: 10px 8px; border-radius: 6px 8px 8px 6px; }
.claim__head .cover .cover__cat, .claim__head .cover .cover__brand { display: none; }
.claim__head .cover .cover__title { font-size: .55rem; }
.claim__head h3 { margin: 0 0 4px; font-size: 1.2rem; }
.claim__head p { margin: 0; font-size: .88rem; color: var(--muted); }
.claim__warn {
  background: var(--orange-bg); border: 1px dashed var(--orange); border-radius: var(--radius-sm);
  padding: 10px 14px; font-size: .86rem; color: var(--ink); margin-bottom: 18px;
}
.claim__success { text-align: center; padding: 20px 0 6px; }
.claim__success-ico {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%;
  background: #EDF9F0; color: #23824A; display: grid; place-items: center; font-size: 1.8rem;
}
.claim__success h3 { margin-bottom: 8px; }
.claim__success p { color: var(--muted); font-size: .95rem; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--navy-800); color: #fff; padding: 13px 22px; border-radius: 999px;
  font-size: .92rem; z-index: 120; box-shadow: var(--shadow-lg);
  animation: toastIn .25s ease;
  max-width: min(90vw, 480px); text-align: center;
}
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* =========================================================
   TRANG TÀI KHOẢN (tai-khoan.html) & TRANG QUẢN TRỊ
   ========================================================= */
.page-account { background: var(--soft); }
.account-page { padding: 44px 0 72px; min-height: 70vh; }
.account-loading { text-align: center; color: var(--muted); padding: 60px 0; }

.account-hero { text-align: center; margin-bottom: 30px; }
.account-hero h1 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }

.account-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; margin-bottom: 20px; box-shadow: var(--shadow);
}
.account-card--soft { background: linear-gradient(160deg, #FFF8F1, #fff); border-color: rgba(245,130,31,.35); }
.account-card--pay { border-color: var(--royal); }
.account-card__head { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; justify-content: space-between; }
.account-card__title { font-size: 1.15rem; margin: 0 0 6px; }
.account-card__meta { color: var(--muted); font-size: .92rem; margin: 0; word-break: break-word; }
.account-card__note { color: var(--muted); font-size: .93rem; margin: 12px 0 0; }
.account-logout { margin-top: 16px; font-size: .88rem; color: var(--muted); text-decoration: underline; }
.account-logout:hover { color: #D93636; }

.plan-badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  font-size: .8rem; font-weight: 700; white-space: nowrap;
}
.plan-badge--free { background: var(--soft); color: var(--muted); }
.plan-badge--member { background: var(--orange); color: var(--navy-900); }
.plan-badge--pro { background: var(--navy-700); color: #fff; }

/* --- Đăng nhập / đăng ký --- */
.auth-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); overflow: hidden; max-width: 460px; margin: 0 auto;
}
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); }
.auth-tab {
  background: var(--soft); border: 0; padding: 15px 10px;
  font-size: .97rem; font-weight: 600; color: var(--muted); transition: background .15s, color .15s;
}
.auth-tab.is-active { background: #fff; color: var(--navy-700); box-shadow: inset 0 -3px 0 var(--orange); }
.auth-form { padding: 24px 22px 22px; }

/* --- Mua gói --- */
.buy-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 18px; }
.buy-option { border: 1.5px solid var(--line); border-radius: var(--radius-sm); padding: 20px 18px; display: flex; flex-direction: column; }
.buy-option--pro { border-color: var(--royal); background: linear-gradient(165deg, #F7F9FF, #fff); }
.buy-option h3 { font-size: 1.05rem; margin-bottom: 4px; }
.buy-option__price { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; color: var(--navy-800); margin: 0 0 12px; }
.buy-option__price span { font-size: .85rem; color: var(--muted); font-family: var(--font-body); }
.buy-option__list { list-style: none; display: grid; gap: 8px; margin-bottom: 18px; flex: 1; }
.buy-option__list li { position: relative; padding-left: 22px; font-size: .9rem; color: var(--muted); }
.buy-option__list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #23824A; font-weight: 700; }

/* --- Thanh toán VietQR --- */
.pay-grid { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 24px; margin: 20px 0; align-items: start; }
.pay-qr { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px; }
.pay-qr img { width: 300px; height: auto; display: block; }
.pay-info dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; font-size: .93rem; align-items: baseline; }
.pay-info dt { color: var(--muted); white-space: nowrap; }
.pay-info dd { margin: 0; color: var(--ink); word-break: break-word; }
.pay-info code { background: var(--soft); padding: 3px 8px; border-radius: 6px; font-size: .95em; letter-spacing: .04em; }
.pay-code { font-weight: 700; color: var(--navy-700); }
.pay-warn {
  margin-top: 16px; background: var(--orange-bg); border: 1px dashed var(--orange);
  border-radius: var(--radius-sm); padding: 10px 14px; font-size: .88rem; color: var(--ink);
}

.pass-box { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 12px; }
.pass-box code {
  background: #fff; border: 1.5px solid var(--orange); border-radius: var(--radius-sm);
  padding: 10px 18px; font-size: 1.05rem; font-weight: 700; letter-spacing: .08em; color: var(--navy-700);
}

/* --- Thư viện trong tài khoản --- */
.lib-grid { display: grid; gap: 14px; margin-top: 18px; }
.lib-item {
  display: grid; grid-template-columns: 78px minmax(0, 1fr); gap: 16px; align-items: center;
  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; background: #fff;
}
.lib-item.is-open { border-color: rgba(35,130,74,.4); background: linear-gradient(120deg, #F6FBF7, #fff); }
.lib-item__cover { aspect-ratio: 3/4; border-radius: 6px; overflow: hidden; background: var(--soft); }
.lib-item__cover img { width: 100%; height: 100%; object-fit: cover; }
.lib-item__meta { font-size: .78rem; color: var(--muted); margin: 0 0 4px; }
.lib-item__body h3 { font-size: 1rem; margin: 0 0 6px; }
.lib-item__desc { font-size: .87rem; color: var(--muted); margin: 0 0 12px; }
.lib-lock { font-size: .85rem; color: var(--muted); font-weight: 600; }
.lib-note { font-size: .85rem; color: #23824A; font-weight: 600; }

/* --- Trang quản trị --- */
.admin-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.admin-table th { background: var(--soft); font-weight: 600; color: var(--navy-700); white-space: nowrap; }
.admin-table code { background: var(--soft); padding: 2px 7px; border-radius: 5px; }
.admin-scroll { overflow-x: auto; }
.st { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .76rem; font-weight: 700; white-space: nowrap; }
.st--pending { background: var(--soft); color: var(--muted); }
.st--reported { background: var(--orange-bg); color: var(--orange-text); }
.st--paid { background: #EDF9F0; color: #1E6E3F; }
.st--cancelled { background: #FBEAEA; color: #B02020; }

@media (max-width: 760px) {
  .buy-grid { grid-template-columns: 1fr; }
  .pay-grid { grid-template-columns: 1fr; }
  .pay-qr img { width: 100%; max-width: 300px; margin: 0 auto; }
  .lib-item { grid-template-columns: 60px minmax(0, 1fr); gap: 12px; }
  .account-card__head { flex-direction: column; }
}

/* ---------- Hiệu ứng cuộn ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__chip--update, .hero__chip--gift, .announce__dot { animation: none; }
  .fab--zalo::before { animation: none; }
  .fab__label { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  /* 3 gói giá xếp 1 cột từ tablet trở xuống cho dễ đọc */
  .pricing { grid-template-columns: minmax(0, 1fr); max-width: 560px; }
  .plan--hot { order: -1; }
  .plan--pro { order: -1; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { min-height: 360px; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .preview { grid-template-columns: 240px 1fr; }
}

/* Nav desktop cần ~870px mới đủ một hàng → chuyển sang hamburger từ 899px trở xuống
   (tránh dải iPad dọc 768px bị gãy chữ nav thành 2 dòng) */
@media (max-width: 899px) {
  .nav {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 80;
    flex-direction: column; align-items: flex-start; gap: 8px;
    background: #fff; width: min(78vw, 320px); padding: 90px 28px 28px;
    box-shadow: -12px 0 40px rgba(21,27,78,.18);
    transform: translateX(100%); transition: transform .25s ease; visibility: hidden;
  }
  .nav.is-open { transform: none; visibility: visible; }
  .nav__link { font-size: 1.1rem; padding: 10px 0; }
  .nav__cta { margin: 14px 0 0; width: 100%; }
  .nav-toggle { display: block; position: relative; z-index: 90; }
  body.nav-open { overflow: hidden; }
  body.nav-open .mobile-bar { display: none; }
}

@media (max-width: 760px) {
  .section { padding: 64px 0; }

  .hero { padding-top: 40px; }
  .hero__actions .btn { width: 100%; }
  .hero__visual { min-height: 330px; }
  .hero__shelf .cover { width: 140px; }
  .hero__shelf .cover:nth-child(2) { width: 164px; }
  .hero__shelf .cover:nth-child(1) { transform: rotate(-8deg) translateX(-76px) scale(.88); }
  .hero__shelf .cover:nth-child(3) { transform: rotate(8deg) translateX(76px) scale(.88); }
  .hero__chip { font-size: .72rem; padding: 8px 10px; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 34px; }
  .pricing { grid-template-columns: 1fr; }
  .plan--hot { order: -1; }
  .plan--pro { order: -1; }
  .cta-card { grid-template-columns: 1fr; padding: 34px 24px; gap: 30px; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .mobile-bar { display: flex; }
  body { padding-bottom: 74px; }
  /* Nút nổi phải nằm trên thanh CTA đáy, không che nhau */
  .floating-contact { right: 12px; bottom: calc(84px + env(safe-area-inset-bottom)); gap: 10px; }
  .fab__ico { width: 48px; height: 48px; }
  .fab:hover .fab__label, .fab:focus-visible .fab__label { max-width: 150px; }
  .cta-card__contacts { flex-direction: column; }
  .contact-btn { width: 100%; }

  .preview { grid-template-columns: 1fr; }
  .preview__side { flex-direction: row; align-items: center; border-right: 0; border-bottom: 1px solid var(--line); padding: 24px 22px; }
  .preview__side .cover { max-width: 110px; padding: 12px 10px; }
  .preview__side .cover .cover__brand { display: none; }
  .preview__side .cover .cover__title { font-size: .6rem; }
  .preview__page { padding: 24px 22px; }
  .preview__cta .btn { width: 100%; }
  .book__actions { grid-template-columns: 1fr; }
}