/* ebook landing page — দুটি বই, এক অর্ডারে
   সাইটের চেনা প্যালেট ও ফন্টেই: paper/forest/gold, Noto Serif. বাড়তি অ্যানিমেশন নেই। */

/* ---------- hero ---------- */
.eb-hero {
  max-width: 1280px; margin: auto; padding: 56px var(--gutter) 40px;
  display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 6%;
}
.eb-hero h1 { font-size: clamp(34px, 4.4vw, 58px); line-height: 1.45; letter-spacing: -1px; margin: 10px 0 20px; }
.eb-hero h1 em {
  color: var(--field); font-style: normal;
  text-decoration: underline; text-decoration-color: var(--gold);
  text-underline-offset: 10px; text-decoration-thickness: 3px;
}
.eb-hero-lead { font-size: 18px; line-height: 1.95; color: #51594d; max-width: 56ch; }
.eb-hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 14px; }
.eb-hero-note { font-size: 13px; color: var(--muted); }

.eb-hero-art { display: flex; justify-content: center; align-items: flex-end; gap: 6%; }
.eb-hero-art img {
  width: 44%; height: auto; aspect-ratio: 260 / 372; object-fit: cover; border-radius: 3px;
  box-shadow: 8px 12px 24px rgba(33, 26, 18, .24);
}
.eb-hero-art img:first-child { transform: rotate(-4deg); }
.eb-hero-art img:last-child { transform: rotate(4deg) translateY(-10px); }

/* ---------- ৩ ধাপ ---------- */
.eb-steps { background: #edf1e8; max-width: none; }
.eb-steps > .section-head, .eb-step-list { max-width: 1280px; margin-left: auto; margin-right: auto; }
.eb-step-list { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding: 0; margin: 0; counter-reset: step; }
.eb-step-list li { padding: 24px 24px 24px 22px; background: var(--white); border: 1px solid #d9e2d2; border-left: 3px solid var(--gold); border-radius: 14px; }
.eb-step-list li > span { display: block; font-size: 12px; font-weight: 600; color: var(--field); margin-bottom: 10px; }
.eb-step-list li > b { display: block; font-size: 21px; line-height: 1.6; color: var(--forest); margin-bottom: 8px; }
.eb-step-list li > p { margin: 0; font-size: 15px; line-height: 1.85; color: #51594d; }

/* ---------- বইয়ের কার্ড ---------- */
.eb-card {
  display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start;
  padding: 34px; border: 1px solid var(--line); border-radius: 18px; background: var(--white);
  scroll-margin-top: 120px;
}
.eb-card + .eb-card { margin-top: 26px; }
.eb-cover { margin: 0; }
.eb-cover img { width: 100%; height: auto; aspect-ratio: 260 / 372; object-fit: cover; border-radius: 3px; box-shadow: 6px 9px 18px rgba(33, 26, 18, .2); }
.eb-no { font-size: 12px; font-weight: 600; letter-spacing: .6px; color: var(--field); margin-bottom: 8px; }
.eb-card h3 { font-size: 28px; line-height: 1.55; margin-bottom: 6px; }
.eb-by { font-size: 14px; color: var(--muted); margin-bottom: 14px; }
.eb-deck { font-size: 19px; line-height: 1.75; color: var(--forest); font-weight: 500; margin-bottom: 12px; }
.eb-sum { font-size: 16px; line-height: 1.9; color: #51594d; margin-bottom: 14px; }
.eb-who { font-size: 15px; line-height: 1.85; color: #51594d; margin-bottom: 18px; }
.eb-who b { color: var(--forest); }
.eb-topics { list-style: none; display: grid; gap: 10px; margin: 0 0 24px; padding: 0; }
.eb-topics li { padding-left: 15px; position: relative; font-size: 15px; line-height: 1.8; }
.eb-topics li::before { content: ''; position: absolute; left: 0; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.eb-topics b { display: block; color: var(--forest); }
.eb-topics span { color: var(--muted); font-size: 14px; }
.eb-links { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 18px; }

/* ---------- কেন এই বই ---------- */
.eb-why { background: #f8eed9; max-width: none; }
.eb-why > .section-head, .eb-why-grid { max-width: 1280px; margin-left: auto; margin-right: auto; }
.eb-why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.eb-why-grid article { padding: 26px; background: var(--white); border: 1px solid #e4d4b1; border-top: 3px solid var(--gold); border-radius: 14px; }
.eb-why-grid h3 { font-size: 20px; line-height: 1.6; margin-bottom: 10px; }
.eb-why-grid p { font-size: 15px; line-height: 1.85; color: #51594d; margin: 0; }

/* ---------- WhatsApp গ্রুপ ---------- */
.eb-group { max-width: none; background: var(--forest); color: var(--paper); }
.eb-group-in { max-width: 820px; margin: auto; text-align: center; }
.eb-group .kicker { color: var(--gold); }
.eb-group h2 { font-size: clamp(28px, 3.2vw, 40px); margin-bottom: 16px; }
.eb-group p { font-size: 17px; line-height: 1.95; color: var(--pale); opacity: .92; }
.eb-group-note { font-size: 14px; margin-top: 16px; opacity: .8; }

/* ---------- FAQ ---------- */
.eb-faq-list { max-width: 820px; }
.eb-faq-list details { border-bottom: 1px solid var(--line); }
.eb-faq-list summary { cursor: pointer; padding: 20px 34px 20px 0; font-size: 18px; line-height: 1.7; color: var(--forest); font-weight: 500; position: relative; list-style: none; }
.eb-faq-list summary::-webkit-details-marker { display: none; }
.eb-faq-list summary::after { content: '+'; position: absolute; right: 6px; top: 18px; font-size: 22px; color: var(--field); }
.eb-faq-list details[open] summary::after { content: '−'; }
.eb-faq-list details p { margin: 0 0 20px; font-size: 16px; line-height: 1.9; color: #51594d; max-width: 70ch; }

/* ---------- ছোট পর্দা ---------- */
@media (max-width: 980px) {
  .eb-hero { grid-template-columns: 1fr; gap: 32px; padding-top: 38px; }
  .eb-hero-art { order: -1; max-width: 340px; margin: 0 auto; }
  .eb-step-list, .eb-why-grid { grid-template-columns: 1fr; gap: 14px; }
  .eb-card { grid-template-columns: 180px 1fr; gap: 28px; padding: 26px; }
}
@media (max-width: 680px) {
  .eb-hero { padding: 30px var(--gutter) 26px; }
  .eb-hero h1 { font-size: clamp(30px, 8vw, 38px); line-height: 1.5; }
  .eb-hero-lead { font-size: 16px; }
  .eb-hero-cta { display: grid; grid-template-columns: 1fr; gap: 10px; }
  .eb-hero-cta .button { width: 100%; justify-content: center; }
  .eb-card { grid-template-columns: 1fr; gap: 22px; padding: 22px; }
  .eb-cover { max-width: 190px; }
  .eb-card h3 { font-size: 24px; }
  .eb-deck { font-size: 17px; }
  .eb-step-list li { padding: 20px; }
  .eb-step-list li > b { font-size: 19px; }
  .eb-faq-list summary { font-size: 16px; padding-right: 30px; }
  .eb-faq-list details p { font-size: 15px; }
}