/* ==========================================================================
   Kanmal — landing page
   Filosofi: "Sederhana = Berkelanjutan". Tenang, terbaca, sedikit JS.
   Satu aksen. Serif untuk judul (nada buku), sans untuk tubuh.
   ========================================================================== */

:root {
  --paper: #faf6ee;
  --paper-2: #f3ece0;
  --card: #fffdf9;
  --ink: #23201b;
  --ink-2: #5b5348;
  --line: #e4dccc;
  --accent: #2f6f5e;      /* hijau tenang — "tumbuh" */
  --accent-ink: #1e4a3f;
  --accent-soft: #e6efe9;
  --warn: #9a6b1e;
  --shadow: 0 1px 2px rgba(35, 32, 27, .04), 0 8px 24px rgba(35, 32, 27, .06);
  --radius: 14px;
  --wrap: 1080px;
  --font-serif: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

:root[data-theme='dark'] {
  --paper: #12110f;
  --paper-2: #1a1815;
  --card: #1c1a16;
  --ink: #ece5d7;
  --ink-2: #a89e8c;
  --line: #322d25;
  --accent: #6dbfa6;
  --accent-ink: #a7d8c8;
  --accent-soft: #1e2b27;
  --warn: #d9ab6b;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 .5em;
}

h1 { font-size: clamp(2.1rem, 5vw, 3.3rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.18rem; font-weight: 600; }

p { margin: 0 0 1rem; }
a { color: var(--accent-ink); text-decoration-color: var(--line); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
strong { font-weight: 600; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }

section { padding-block: clamp(48px, 8vw, 96px); }
.section-alt { background: var(--paper-2); }
.eyebrow {
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 .8rem;
}
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 62ch; }

/* ---- skip link / a11y ---- */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 100;
}
.skip-link:focus { left: 0; }
:where(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  font: inherit; font-weight: 600;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); }
:root[data-theme='dark'] .btn-primary { color: #10201c; }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-ink); }

/* ---- nav ---- */
.site-nav {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand {
  display: inline-flex; align-items: baseline; gap: .35em;
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 600;
  color: var(--ink); text-decoration: none;
}
.brand-mark { color: var(--accent); font-size: 1.5em; line-height: 0; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--ink-2); text-decoration: none; font-size: .95rem; }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  background: transparent; border: 1px solid var(--line); color: var(--ink);
  width: 34px; height: 34px; border-radius: 999px; cursor: pointer; font-size: .95rem;
  display: grid; place-items: center;
}
.theme-toggle .t-light { display: none; }
:root[data-theme='dark'] .theme-toggle .t-light { display: block; }
:root[data-theme='dark'] .theme-toggle .t-dark { display: none; }

@media (max-width: 820px) {
  .nav-links { display: none; }
}

/* ---- hero ---- */
.hero { padding-block: clamp(56px, 10vw, 120px); text-align: center; }
.hero .tagline {
  font-family: var(--font-serif); font-style: italic; color: var(--ink-2);
  font-size: 1.05rem; margin-bottom: 1.4rem;
}
.hero h1 { max-width: 18ch; margin-inline: auto; }
.hero .lead { margin: 1.2rem auto 2rem; text-align: center; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 1rem; font-size: .9rem; color: var(--ink-2); }

/* ---- generic grid + cards ---- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-5 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-5 { grid-template-columns: 1fr; } }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin-bottom: .35em; }
.card p { margin: 0; color: var(--ink-2); font-size: .96rem; }
.card .ic { font-size: 1.5rem; display: block; margin-bottom: .5rem; }

/* ---- problem list ---- */
.prob { display: grid; gap: 12px; margin-top: 28px; }
.prob-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px;
}
.prob-row .bad { color: var(--ink); font-weight: 500; }
.prob-row .fix { color: var(--ink-2); }
.prob-row .fix::before { content: '→ '; color: var(--accent); font-weight: 700; }
@media (max-width: 620px) { .prob-row { grid-template-columns: 1fr; gap: 6px; } }

/* ---- flow (4 kolom) ---- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 30px; }
.flow-step {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; position: relative;
}
.flow-step .ic { font-size: 1.4rem; }
.flow-step h3 { font-size: 1rem; margin: .4rem 0 .3rem; }
.flow-step p { margin: 0; font-size: .88rem; color: var(--ink-2); }
.flow-step .tag {
  display: inline-block; margin-top: .6rem; font-size: .72rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--accent-ink); background: var(--accent-soft);
  padding: 2px 8px; border-radius: 999px;
}
@media (max-width: 900px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .flow { grid-template-columns: 1fr; } }

/* ---- compare table ---- */
.compare { margin-top: 28px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.cmp { border-collapse: collapse; width: 100%; min-width: 560px; background: var(--card); }
table.cmp th, table.cmp td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); font-size: .93rem; }
table.cmp thead th { font-family: var(--font-sans); font-weight: 600; background: var(--paper-2); }
table.cmp tbody tr:last-child td { border-bottom: none; }
table.cmp td:first-child { color: var(--ink-2); }
table.cmp .yes { color: var(--accent-ink); font-weight: 600; }

/* ---- pricing ---- */
.tiers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; align-items: start; }
@media (max-width: 940px) { .tiers { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .tiers { grid-template-columns: 1fr; } }
.tier {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 20px; display: flex; flex-direction: column; gap: 14px; height: 100%;
}
.tier.featured { border-color: var(--accent); box-shadow: var(--shadow); }
.tier .name { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600; }
.tier .price { font-size: 1.7rem; font-weight: 700; font-family: var(--font-serif); }
.tier .price small { display: block; font-size: .8rem; font-weight: 400; color: var(--ink-2); font-family: var(--font-sans); }
.tier ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: .9rem; color: var(--ink-2); }
.tier li { padding-left: 1.4em; position: relative; }
.tier li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.tier .btn { margin-top: auto; justify-content: center; }
.tier .badge {
  align-self: flex-start; font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  background: var(--accent); color: #fff; padding: 3px 10px; border-radius: 999px;
}
:root[data-theme='dark'] .tier .badge { color: #10201c; }
.price-note { margin-top: 18px; font-size: .88rem; color: var(--ink-2); }

/* ---- personas ---- */
.persona { display: block; }
.persona .who { font-weight: 600; color: var(--ink); }
.persona .pain { color: var(--ink-2); font-size: .92rem; margin-top: .2rem; }

/* ---- ebook band ---- */
.ebook { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 820px) { .ebook { grid-template-columns: 1fr; } }
.ebook-cover {
  background: linear-gradient(160deg, var(--accent) 0%, var(--accent-ink) 100%);
  color: #fff; border-radius: var(--radius); padding: 40px 32px; min-height: 260px;
  display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--shadow);
}
.ebook-cover .k { font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; opacity: .85; }
.ebook-cover .tt { font-family: var(--font-serif); font-size: 1.8rem; line-height: 1.15; margin-top: 8px; }
.ebook-cover .by { font-size: .85rem; opacity: .85; }

/* ---- faq ---- */
.faq { margin-top: 24px; display: grid; gap: 10px; max-width: 780px; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 4px 18px;
}
.faq summary {
  cursor: pointer; padding: 14px 0; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--accent); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: '\2212'; }
.faq details p { margin: 0 0 16px; color: var(--ink-2); font-size: .95rem; }

/* ---- final cta ---- */
.final { text-align: center; }
.final h2 { max-width: 20ch; margin-inline: auto; }
.final .hero-actions { margin-top: 24px; }

/* ---- footer ---- */
.site-footer { border-top: 1px solid var(--line); background: var(--paper-2); padding-block: 48px 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }
.brand-footer { font-size: 1.15rem; margin-bottom: 10px; }
.footer-tag { font-family: var(--font-serif); font-style: italic; color: var(--ink-2); margin: 0 0 12px; }
.footer-fine { font-size: .82rem; color: var(--ink-2); max-width: 46ch; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { color: var(--ink-2); text-decoration: none; font-size: .9rem; }
.footer-links a:hover { color: var(--ink); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: .82rem; color: var(--ink-2);
}