/* ─── Fonts ─────────────────────────────────── */
@font-face {
  font-family: 'HEN';
  src: url('../fonts/iannnnn-HEN-Thin.otf') format('opentype');
  font-weight: 100; font-display: swap;
}
@font-face {
  font-family: 'HEN';
  src: url('../fonts/iannnnn-HEN-Regular.otf') format('opentype');
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: 'HEN';
  src: url('../fonts/iannnnn-HEN-Bold.otf') format('opentype');
  font-weight: 700; font-display: swap;
}
@font-face {
  font-family: 'NotoSansThai';
  src: url('../fonts/NotoSansThai-VariableFont_wdth,wght.ttf') format('truetype');
  font-weight: 100 900; font-display: swap;
}

/* ─── Tokens ─────────────────────────────────── */
:root {
  --c-bg:        #FAF6F0;
  --c-surface:   #FFFFFF;
  --c-card:      #F5EDD6;
  --c-border:    #EDE0D4;
  --c-border2:   #E0CDBF;
  --c-text:      #2C1810;
  --c-text-2:    #5C3320;
  --c-text-3:    #8B5A3C;
  --c-text-4:    #C4A090;
  --c-blue:      #4A9EBF;
  --c-blue-lt:   #D6EEF6;
  --c-blue-mid:  #7EC0E4;
  --c-green:     #5BA87A;
  --c-green-lt:  #E8F5EE;
  --c-line:      #06C755;
  --c-line-dk:   #05A347;
  --c-pink:      #D98080;
  --c-pink-lt:   #FBE8E8;
  --c-gold-lt:   #FDF4E3;
  --f-body:      'HEN', 'NotoSansThai', sans-serif;
  --r-sm:        10px;
  --r-md:        18px;
  --r-lg:        28px;
  --r-xl:        40px;
  --shadow-sm:   0 2px 12px rgba(44,24,16,.07);
  --shadow-md:   0 6px 28px rgba(44,24,16,.11);
  --shadow-lg:   0 12px 48px rgba(44,24,16,.14);
  --max-w:       1100px;
}

/* ─── Reset ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--f-body);
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

/* ─── Util ───────────────────────────────────── */
.wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 24px;
}
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--c-blue);
  background: var(--c-blue-lt);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ─── Animations ─────────────────────────────── */
@keyframes float-a {
  0%,100% { transform: translateY(0px) rotate(-1deg); }
  50%      { transform: translateY(-14px) rotate(1deg); }
}
@keyframes float-b {
  0%,100% { transform: translateY(-6px) rotate(1deg); }
  50%      { transform: translateY(8px) rotate(-1deg); }
}
.fl-a { animation: float-a 4.5s ease-in-out infinite; }
.fl-b { animation: float-b 5.5s ease-in-out infinite; }

/* ─── NAV ────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(250,246,240,.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links {
  display: none;
  gap: 28px;
  font-size: .9rem;
  color: var(--c-text-2);
}
.nav-links a:hover { color: var(--c-blue); }
.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--c-line);
  color: #fff;
  font-family: var(--f-body);
  font-size: .88rem;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: background .18s, transform .15s;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(6,199,85,.28);
}
.btn-line:hover { background: var(--c-line-dk); transform: translateY(-1px); }
.btn-line svg { flex-shrink: 0; }

@media (min-width: 760px) { .nav-links { display: flex; } }

/* ─── HERO ───────────────────────────────────── */
.hero {
  padding-block: 72px 56px;
  overflow: hidden;
  position: relative;
}
/* decorative blobs */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.hero::before {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(74,158,191,.12) 0%, transparent 70%);
  top: -140px; right: -160px;
}
.hero::after {
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(91,168,122,.10) 0%, transparent 70%);
  bottom: -80px; left: -80px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 860px) {
  .hero-inner { grid-template-columns: 1fr auto; gap: 64px; }
}

/* left column */
.hero-text {}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  color: var(--c-text-2);
  font-size: .78rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--c-text);
  letter-spacing: -.01em;
}
.hero-title .hl {
  color: var(--c-blue);
  position: relative;
}
.hero-sub {
  margin-top: 18px;
  font-size: clamp(.95rem, 2vw, 1.1rem);
  color: var(--c-text-2);
  max-width: 460px;
  line-height: 1.75;
}
.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn-line-lg {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c-line);
  color: #fff;
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 30px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: background .18s, transform .15s, box-shadow .18s;
  box-shadow: 0 6px 20px rgba(6,199,85,.32);
}
.btn-line-lg:hover {
  background: var(--c-line-dk);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(6,199,85,.36);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--c-text-3);
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 400;
  padding: 14px 24px;
  border-radius: 100px;
  border: 1.5px solid var(--c-border2);
  cursor: pointer;
  transition: border-color .18s, color .18s;
}
.btn-ghost:hover { border-color: var(--c-blue); color: var(--c-blue); }

.hero-note {
  margin-top: 18px;
  font-size: .78rem;
  color: var(--c-text-4);
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero-note::before { content: '✓'; color: var(--c-green); font-weight: 700; }

/* right column — mascots + QR */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.mascot-row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0;
}
.mascot-row img:first-child { width: 130px; z-index: 1; }
.mascot-row img:last-child  { width: 110px; margin-left: -20px; }

.qr-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 20px 24px 18px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: fit-content;
}
.qr-card img {
  width: 168px;
  height: 168px;
  object-fit: contain;
  border-radius: var(--r-sm);
}
.qr-card-label {
  text-align: center;
  font-size: .8rem;
  color: var(--c-text-3);
  line-height: 1.5;
}
.qr-card-label strong {
  display: block;
  font-size: .92rem;
  color: var(--c-text);
  margin-bottom: 2px;
}

@media (min-width: 860px) {
  .hero-visual { flex-direction: column-reverse; }
}

/* ─── STRIP ──────────────────────────────────── */
.strip {
  border-block: 1px solid var(--c-border);
  background: var(--c-surface);
  padding-block: 28px;
}
.strip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px 40px;
}
.strip-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  color: var(--c-text-2);
  font-weight: 700;
}
.strip-item .num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1;
}
.strip-item .lbl {
  font-size: .75rem;
  font-weight: 400;
  color: var(--c-text-3);
  display: block;
  line-height: 1.3;
}
.strip-divider {
  width: 1px;
  height: 36px;
  background: var(--c-border);
}
@media (max-width: 500px) { .strip-divider { display: none; } }

/* ─── SECTION COMMONS ────────────────────────── */
.sec { padding-block: 80px; }
.sec-alt { background: var(--c-card); }
.sec-head {
  text-align: center;
  margin-bottom: 52px;
}
.sec-head .tag { margin-bottom: 12px; }
.sec-title {
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.22;
}
.sec-sub {
  margin-top: 12px;
  font-size: 1rem;
  color: var(--c-text-3);
  max-width: 500px;
  margin-inline: auto;
}

/* ─── PAIN POINTS ────────────────────────────── */
.pain-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 580px) { .pain-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .pain-grid { grid-template-columns: repeat(4, 1fr); } }

.pain-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 24px 22px;
  transition: transform .2s, box-shadow .2s;
}
.pain-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.pain-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
  line-height: 1;
}
.pain-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}
.pain-desc { font-size: .88rem; color: var(--c-text-2); line-height: 1.65; }

/* ─── FEATURES ───────────────────────────────── */

/* Icon badge (shared) */
.feat-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--r-sm);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  flex-shrink: 0;
}
.ic-blue  { background: var(--c-blue-lt); }
.ic-green { background: var(--c-green-lt); }
.ic-pink  { background: var(--c-pink-lt); }
.ic-gold  { background: var(--c-gold-lt); }

/* ── Alternating rows (LIFF-first features) ── */
.feat-rows {
  display: flex;
  flex-direction: column;
  gap: 56px;
  margin-bottom: 56px;
}

.feat-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
@media (min-width: 720px) {
  .feat-row {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }
  .feat-row--rev .feat-row-screen { order: -1; }
}

.feat-row-screen {
  display: flex;
  justify-content: center;
}
.phone-shell {
  width: 200px;
  border-radius: 28px;
  overflow: hidden;
  border: 3px solid var(--c-border);
  box-shadow: var(--shadow-lg);
  background: var(--c-surface);
}
.phone-shell img { width: 100%; display: block; }

.feat-row-text .feat-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.feat-row-text .feat-desc {
  font-size: .92rem;
  color: var(--c-text-2);
  line-height: 1.72;
}

/* LIFF open button */
.feat-liff-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-blue-lt);
  color: var(--c-blue);
  font-size: .85rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 100px;
  margin-top: 16px;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s;
}
.feat-liff-btn:hover {
  background: var(--c-blue);
  color: #fff;
}

/* chat shortcut block */
.chat-alt {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--c-border2);
}
.chat-alt-label {
  font-size: .72rem;
  color: var(--c-text-4);
  display: block;
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* chat syntax chip (shared) */
.chat-chip {
  display: inline-block;
  background: var(--c-card);
  border: 1px solid var(--c-border2);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: .78rem;
  color: var(--c-text);
  font-family: 'Courier New', monospace;
  letter-spacing: .01em;
}
.chat-chip::before {
  content: '💬 ';
  font-family: var(--f-body);
}

/* ── Minor feature cards (auto/passive features) ── */
.feat-minor-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  padding-top: 56px;
  border-top: 1px solid var(--c-border);
}
@media (min-width: 580px) { .feat-minor-grid { grid-template-columns: 1fr 1fr; } }

.feat-card-sm {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 24px 22px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: transform .2s, box-shadow .2s;
}
.feat-card-sm:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.feat-card-sm .feat-icon-wrap { margin-bottom: 0; }
.feat-card-sm-body {}
.feat-card-sm h3 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 5px;
  line-height: 1.3;
}
.feat-card-sm p { font-size: .85rem; color: var(--c-text-2); line-height: 1.65; }

/* ─── SCREENSHOTS ────────────────────────────── */
.ss-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  cursor: grab;
}
.ss-track:active { cursor: grabbing; }
.ss-track::-webkit-scrollbar { height: 4px; }
.ss-track::-webkit-scrollbar-thumb { background: var(--c-border2); border-radius: 4px; }
.ss-item {
  flex: 0 0 220px;
  scroll-snap-align: start;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  background: var(--c-surface);
}
.ss-item img { width: 100%; display: block; }
@media (min-width: 760px) { .ss-item { flex: 0 0 250px; } }

/* ─── HOW TO ─────────────────────────────────── */
.howto-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  position: relative;
  max-width: 740px;
  margin-inline: auto;
}

.howto-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding-bottom: 40px;
  position: relative;
}
/* vertical connector */
.howto-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 20px;
  top: 40px;
  width: 2px;
  bottom: 0;
  background: linear-gradient(to bottom, var(--c-blue-mid), var(--c-border));
}

.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-blue);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(74,158,191,.35);
  position: relative;
  z-index: 1;
}
.step-body { padding-top: 6px; }
.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}
.step-desc { font-size: .9rem; color: var(--c-text-2); line-height: 1.7; }
.step-chip {
  display: inline-block;
  margin-top: 10px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 6px 12px;
  font-size: .8rem;
  color: var(--c-text);
  font-family: 'Courier New', monospace;
}
.step-chip::before { content: '💬 '; font-family: var(--f-body); }

/* ─── FAQ ────────────────────────────────────── */
.faq-list {
  max-width: 700px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.faq-item summary {
  padding: 18px 22px;
  font-size: .95rem;
  font-weight: 700;
  color: var(--c-text);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .ico {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c-blue-lt);
  color: var(--c-blue);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .2s, background .2s;
}
.faq-item[open] summary .ico {
  transform: rotate(45deg);
  background: var(--c-blue);
  color: #fff;
}
.faq-item .faq-ans {
  padding: 0 22px 18px;
  font-size: .9rem;
  color: var(--c-text-2);
  line-height: 1.75;
  border-top: 1px solid var(--c-border);
  padding-top: 14px;
}

/* ─── FINAL CTA ──────────────────────────────── */
.cta-sec {
  padding-block: 80px;
  background: linear-gradient(160deg, #2A6E8A 0%, #1a4f66 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-sec::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.05) 0%, transparent 40%);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta-tag {
  display: inline-block;
  background: rgba(255,255,255,.15);
  color: rgba(255,255,255,.9);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
  backdrop-filter: blur(6px);
}
.cta-title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.22;
  margin-bottom: 10px;
}
.cta-sub {
  font-size: 1rem;
  color: rgba(255,255,255,.72);
  margin-bottom: 40px;
}
.cta-qr-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}
.cta-qr-card {
  background: #fff;
  border-radius: var(--r-lg);
  padding: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,.25);
  width: fit-content;
  margin-inline: auto;
}
.cta-qr-card img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: var(--r-sm);
  display: block;
}
.cta-qr-note {
  font-size: .8rem;
  color: rgba(255,255,255,.6);
}
.cta-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 240px;
  margin-inline: auto;
  margin-bottom: 20px;
  color: rgba(255,255,255,.35);
  font-size: .78rem;
}
.cta-divider::before, .cta-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.2);
}
.btn-line-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c-line);
  color: #fff;
  font-family: var(--f-body);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 15px 36px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: background .18s, transform .15s, box-shadow .18s;
  box-shadow: 0 6px 20px rgba(6,199,85,.4);
}
.btn-line-cta:hover {
  background: var(--c-line-dk);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(6,199,85,.45);
}
.cta-fine {
  margin-top: 16px;
  font-size: .75rem;
  color: rgba(255,255,255,.4);
}

/* ─── ARTICLES LISTING ───────────────────────── */
.articles-hero {
  padding-block: 56px 40px;
  background: var(--c-card);
  border-bottom: 1px solid var(--c-border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  color: var(--c-text-3);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--c-blue); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--c-border2); }
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-block: 56px;
}
@media (min-width: 640px) {
  .articles-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .articles-grid { grid-template-columns: repeat(3, 1fr); }
}
.article-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.article-card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--c-card);
}
.article-card-cover-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--c-blue-lt) 0%, var(--c-card) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.article-card-body {
  padding: 22px 22px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .75rem;
  color: var(--c-text-4);
  margin-bottom: 10px;
}
.article-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.4;
  margin-bottom: 8px;
}
.article-card-excerpt {
  font-size: .88rem;
  color: var(--c-text-3);
  line-height: 1.6;
  flex: 1;
}
.article-card-link {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--c-blue);
}
.article-card-link:hover { text-decoration: underline; }

/* ─── ARTICLE DETAIL ─────────────────────────── */
.article-hero {
  padding-block: 52px 40px;
  background: var(--c-card);
  border-bottom: 1px solid var(--c-border);
}
.article-header-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: .8rem;
  color: var(--c-text-3);
}
.article-title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-text);
  margin-bottom: 16px;
}
.article-subtitle {
  font-size: 1.05rem;
  color: var(--c-text-2);
  max-width: 680px;
  line-height: 1.7;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  padding-block: 56px;
  align-items: start;
}
@media (min-width: 960px) {
  .article-layout { grid-template-columns: 1fr 300px; }
}
.article-body {
  max-width: 720px;
}
.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-text);
  margin-block: 40px 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--c-border);
}
.article-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-block: 24px 10px;
}
.article-body p {
  font-size: .97rem;
  color: var(--c-text-2);
  line-height: 1.85;
  margin-bottom: 14px;
}
.article-body ul, .article-body ol {
  padding-left: 20px;
  margin-bottom: 14px;
}
.article-body li {
  font-size: .97rem;
  color: var(--c-text-2);
  line-height: 1.8;
  margin-bottom: 4px;
}
.article-body ul li { list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body strong { color: var(--c-text); font-weight: 700; }
.article-body a { color: var(--c-blue); text-decoration: underline; }
.article-body code {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  padding: 2px 7px;
  border-radius: 5px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .82rem;
  color: var(--c-text);
}
.article-table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 20px 28px;
  font-size: .88rem;
  border-radius: var(--r-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-table th {
  background: var(--c-blue);
  color: #fff;
  font-weight: 700;
  padding: 10px 14px;
  text-align: left;
}
.article-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text-2);
  vertical-align: top;
}
.article-table tr:last-child td { border-bottom: none; }
.article-table tr:nth-child(even) td { background: var(--c-card); }
.article-callout {
  background: var(--c-blue-lt);
  border-left: 4px solid var(--c-blue);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 16px 20px;
  margin-block: 20px 24px;
}
.article-callout p { color: var(--c-text-2); margin-bottom: 0; }
.article-callout strong { color: var(--c-blue); }
.article-cta-inline {
  background: linear-gradient(135deg, var(--c-blue-lt) 0%, var(--c-card) 100%);
  border: 1.5px solid var(--c-blue-mid);
  border-radius: var(--r-md);
  padding: 28px 24px;
  margin-block: 32px;
  text-align: center;
}
.article-cta-inline h3 {
  font-size: 1.15rem;
  color: var(--c-text);
  margin-bottom: 8px;
}
.article-cta-inline p {
  font-size: .88rem;
  color: var(--c-text-3);
  margin-bottom: 16px;
}
/* sidebar */
.article-sidebar {}
.sidebar-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 22px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.sidebar-card h4 {
  font-size: .92rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-border);
}
.sidebar-card ul { list-style: none; padding: 0; }
.sidebar-card li { margin-bottom: 10px; }
.sidebar-card li a {
  font-size: .85rem;
  color: var(--c-blue);
  line-height: 1.5;
}
.sidebar-card li a:hover { text-decoration: underline; }
.sidebar-toc li { border-left: 2px solid var(--c-border); padding-left: 10px; }
.sidebar-toc li a { color: var(--c-text-3); }

/* articles teaser on homepage */
.articles-teaser-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
@media (min-width: 640px) {
  .articles-teaser-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .articles-teaser-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ─── FOOTER ─────────────────────────────────── */
.footer {
  background: #1A0E08;
  color: rgba(255,255,255,.55);
  padding-block: 44px 28px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
@media (min-width: 640px) {
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: flex-start; }
}
.footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.footer-tag { font-size: .82rem; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-size: .85rem;
}
.footer-links a:hover { color: #fff; }
.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: .75rem;
  text-align: center;
  color: rgba(255,255,255,.3);
}