/*
 * esim-compatibility-home.css
 * Consolidated CSS for the eSIM Compatibility Checker page.
 * Extracted from styles.css + landing.css — only rules actually used by esim-compatibility.html.
 * Above-the-fold rules are first; below-the-fold rules are marked at the end.
 */

/* ═══════════════════════════════════════════════════
   1. VARIABLES & RESET
   ═══════════════════════════════════════════════════ */

/* From landing.css */
:root {
  --font-sans: system-ui, -apple-system, 'Segoe UI', 'Inter', 'Inter-fallback', sans-serif;
  --font-serif: 'Iowan Old Style', 'Palatino Linotype', 'URW Palladio L', 'P052', Georgia, serif;
  --font-mono: 'SF Mono', ui-monospace, Menlo, Monaco, Consolas, monospace;

  --bg:               #f2f1ed;
  --bg-light:         #f7f7f4;
  --surface:          #ebeae5;
  --surface-dark:     #e6e5e0;
  --text:             #26251e;
  --text-secondary:   rgba(38, 37, 30, 0.80);
  --text-muted:       rgba(38, 37, 30, 0.72);
  --text-dim:         rgba(38, 37, 30, 0.66);

  --accent:           #f54e00;
  --gold:             #c08532;
  --error:            #cf2d56;
  --success:          #1f8a65;

  --thinking:         #dfa88f;
  --grep:             #9fc9a2;
  --read-color:       #9fbbe0;
  --edit-color:       #c0a8dd;

  --border:           rgba(38, 37, 30, 0.1);
  --border-mid:       rgba(38, 37, 30, 0.2);
  --border-strong:    rgba(38, 37, 30, 0.55);
  --border-soft:      rgba(38, 37, 30, 0.05);

  --shadow-card:      rgba(0,0,0,0.14) 0px 28px 70px, rgba(0,0,0,0.1) 0px 14px 32px, 0 0 0 1px rgba(38,37,30,0.08);
  --shadow:           rgba(0,0,0,0.08) 0px 4px 12px, 0 0 0 1px rgba(38,37,30,0.05);
  --shadow-lg:        rgba(0,0,0,0.12) 0px 12px 40px, 0 0 0 1px rgba(38,37,30,0.06);
  --shadow-focus:     rgba(0,0,0,0.1) 0px 4px 12px;

  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius:      10px;
  --radius-lg:   12px;
  --radius-full: 9999px;

  --transition:    0.15s ease;
  --transition-sm: 0.15s ease;
  --transition-lg: 0.2s ease;
  --z-base:     1; --z-dropdown: 100; --z-modal: 200; --z-toast: 300; --z-overlay: 400;
}

/* Also from styles.css (theme vars used by compat panel) */
:root {
  --brand:   #f54e00;
  --brand-2: #c08532;
  --green:   #1f8a65;
  --red:     #cf2d56;
  --blue:    #3772cf;
  --indigo:  #3772cf;
  --purple:  #7c3aed;
  --yellow:  #c08532;
  --cyan:    #3772cf;
  --teal:    #1f8a65;
  --orange:  #f54e00;
  --color-success: #1f8a65;
  --color-error:   #cf2d56;
  --gradient-btn:  linear-gradient(135deg, #f54e00 0%, #d44300 100%);
  --gradient-text: linear-gradient(135deg, #f54e00 0%, #c08532 100%);
  --brand-dim: rgba(245,78,0,0.04);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  font-size: 17.28px;
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; background: none; border: none; }
.hidden { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ───────────────────── Animations ───────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

/* ═══════════════════════════════════════════════════
   2. NAVIGATION
   ═══════════════════════════════════════════════════ */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
  letter-spacing: -0.4px;
  width: 148px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  justify-content: center;
}

.nav__links li a {
  padding: 6px 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav__links li a:hover { color: var(--accent); }

.nav__actions { display: flex; align-items: center; gap: 8px; }

.nav__link {
  padding: 6px 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav__link:hover { color: var(--accent); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: color var(--transition), box-shadow var(--transition);
}

.nav__cta:hover {
  color: var(--error);
  box-shadow: var(--shadow-focus);
}

.nav__mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
}
.nav__mobile-toggle:hover { color: var(--text); background: rgba(38,37,30,0.06); }

/* Mobile drawer */
.nav__drawer {
  display: none;
  position: fixed;
  top: 60px;
  left: 0; right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 16px;
  flex-direction: column;
  gap: 4px;
  z-index: 98;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.15s ease both;
}
.nav__drawer.nav__drawer--open { display: flex; }
.nav__drawer-link {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  transition: background var(--transition), color var(--transition);
}
.nav__drawer-link:hover { background: rgba(38,37,30,0.05); color: var(--text); }
.nav__drawer-divider { height: 1px; background: var(--border); margin: 8px 0; }
.nav__drawer-cta {
  display: flex; align-items: center; justify-content: center;
  margin-top: 4px; padding: 13px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font-sans); font-size: 15px; font-weight: 500;
}
.nav__drawer-cta:hover { color: var(--error); }
.nav__overlay { display: none; position: fixed; inset: 0; top: 60px; background: rgba(0,0,0,0.15); z-index: 97; }
.nav__overlay--open { display: block; }

/* ═══════════════════════════════════════════════════
   3. BUTTONS
   ═══════════════════════════════════════════════════ */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  background: var(--text);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary:hover {
  color: var(--error);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(38, 37, 30, 0.06);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), transform var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-ghost:hover {
  color: var(--error);
  background: rgba(38, 37, 30, 0.03);
}

/* ═══════════════════════════════════════════════════
   4. HERO (ABOVE THE FOLD)
   ═══════════════════════════════════════════════════ */

.hero {
  min-height: 88vh;
  display: flex;
  align-items: flex-start;
  background: var(--bg);
  position: relative;
}

.hero::before { display: none; }
.hero::after { display: none; }
.hero .hero__glow-mid { display: none; }

.hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 88px 24px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
  min-width: 0;
}

.hero__panel { min-width: 0; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  width: fit-content;
  animation: fadeInUp 0.5s ease both;
}

.hero__title {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--text);
}

.hero__title .highlight {
  color: var(--accent);
}

.hero__sub {
  font-family: var(--font-sans);
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  animation: fadeInUp 0.5s ease 0.16s both;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  animation: fadeInUp 0.5s ease 0.24s both;
}

.hero__trust {
  display: flex;
  align-items: center;
  gap: 14px;
  animation: fadeInUp 0.5s ease 0.32s both;
}

.hero__trust-text {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-dim);
}

.hero__trust-text strong {
  color: var(--text-secondary);
  font-weight: 500;
}

.hero__trust-dot {
  width: 3px;
  height: 3px;
  background: var(--text-dim);
  border-radius: 50%;
}

.hero__panel { animation: fadeInUp 0.6s ease 0.18s both; }

/* ═══════════════════════════════════════════════════
   5. COMPATIBILITY PANEL (ABOVE THE FOLD — custom compat classes + shared .sp classes)
   ═══════════════════════════════════════════════════ */

.sp__live {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
}

.sp__dot {
  width: 7px; height: 7px;
  background: var(--success);
  border-radius: 50%;
  animation: blink 2.5s ease-in-out infinite;
}

/* Compatibility panel styles (from inline CSS or compat-specific sections in landing.css) */
.compat-panel {
  background: var(--surface-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.compat-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.02);
}

.compat-status {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(38,37,30,0.04);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
}

.compat-device {
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
}

.compat-brand {
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  min-height: 14px;
}

.compat-model {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  color: var(--text);
  line-height: 1.2;
  margin: 3px 0 8px;
  letter-spacing: -0.4px;
}

.compat-chips { display: flex; flex-wrap: wrap; gap: 5px; }

.compat-acc-body { max-height: 0; overflow: hidden; transition: max-height 0.32s ease; }
.compat-acc--open .compat-acc-body { max-height: 1400px; }

.compat-kvs {
    display: flex;
    flex-direction: column;
  gap: 1px; background: rgba(38,37,30,0.04);
  border-bottom: 1px solid var(--border);
}

.compat-kv {
  display: flex; flex-direction: column;
  padding: 7px 14px; background: var(--surface-dark);
  font-family: var(--font-sans); font-size: 11.5px;
}
.compat-kv > span:first-child { color: var(--text-dim); font-weight: 400; }
.compat-kv > span:last-child { color: var(--text); font-weight: 500; text-align: right; }

.compat-instructions {
  padding: 16px;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.compat-instructions h4 {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.compat-instructions p { margin-top: 8px; }
.compat-instructions ol { padding-left: 20px; list-style: decimal; }
.compat-instructions ol li { margin-bottom: 4px; }

/* eSIM result */
.esim-result {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
}
.esim-result__icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.esim-result__text {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
}
.esim-result__text strong {
  font-weight: 600;
  color: var(--text);
}
.esim-result__text span {
  display: block;
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 2px;
}

/* Compatibility badges */
.compat-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: var(--surface);
}
.compat-badge--yes { color: #14653e; border-color: rgba(31,138,101,0.2); background: rgba(31,138,101,0.06); }
.compat-badge--no { color: #b0284a; border-color: #b0284a; }
.compat-badge--dual { color: var(--accent); border-color: rgba(245,78,0,0.15); background: rgba(245,78,0,0.06); }

.setup-note {
  font-size: 0.94rem;
  line-height: 1.75;
}
.setup-note strong {
  color: var(--text);
}

/* ═══════════════════════════════════════════════════
   6. SECTION BASE
   ═══════════════════════════════════════════════════ */

.section { padding: 96px 0; }
.section__inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-header { margin-bottom: 0; display: flex; flex-direction: column; align-items: flex-start; }
.section-header.text-center { align-items: center; text-align: center; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
}
.section-sub--center { margin-left: auto; margin-right: auto; }

.text-center { text-align: center; }

/* ═══════════════════════════════════════════════════
   7. FEATURES GRID
   ═══════════════════════════════════════════════════ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.feature-card {
  background: var(--surface-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 40px; height: 40px; min-width: 40px; min-height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg { width: 18px; height: 18px; }

.feature-icon--indigo { background: rgba(159,187,224,0.2); color: var(--accent); }
.feature-icon--green { background: rgba(31,138,101,0.1); color: var(--success); }
.feature-icon--blue { background: rgba(159,187,224,0.15); color: var(--accent); }
.feature-icon--purple { background: rgba(192,133,50,0.12); color: var(--gold); }
.feature-icon--yellow { background: rgba(192,133,50,0.12); color: var(--gold); }
.feature-icon--red { background: rgba(207,45,86,0.08); color: var(--error); }

.feature-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.feature-desc {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════
   8. INSTALL GUIDE
   ═══════════════════════════════════════════════════ */

.install-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.install-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.install-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.install-card__brand {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.install-card__badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(38,37,30,0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border-soft);
}
.install-card__badge--apple { color: var(--text); background: rgba(38,37,30,0.06); }
.install-card__badge--android { color: #14653e; background: rgba(31,138,101,0.06); border-color: rgba(31,138,101,0.15); }

.install-card__title {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.install-steps {
  list-style: decimal;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
  counter-reset: none;
}
.install-steps li {
  display: list-item;
  list-style-position: outside;
}

.install-steps__num { display: none; }

.install-card__note {
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(38,37,30,0.02);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  border-left: 3px solid var(--border);
}

.activation-methods {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 8px 0;
  padding: 12px 16px;
  background: rgba(38,37,30,0.02);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
}

.activation-method {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.activation-method strong {
  color: var(--text);
}

/* ═══════════════════════════════════════════════════
   9. BENEFITS GRID
   ═══════════════════════════════════════════════════ */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.benefit-item {
  display: flex;
  gap: 18px;
  padding: 26px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition);
}

.benefit-item:hover { box-shadow: var(--shadow); }

.benefit-icon {
  width: 40px; height: 40px; min-width: 40px;
  border-radius: var(--radius-xs);
  background: rgba(159,201,162,0.12);
  display: flex; align-items: center; justify-content: center;
}
.benefit-icon svg { width: 18px; height: 18px; color: var(--success); }

.benefit-content { flex: 1; min-width: 0; }

.benefit-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.2px;
}

.benefit-desc {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════
   10. DEVICE INDEX (BELOW THE FOLD — defer)
   ═══════════════════════════════════════════════════ */

.device-index {
  background: var(--bg);
}

/* Section variant with surface background and top/bottom borders */
.section--surface {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Wider subtext on section header */
.section-sub--wide {
  max-width: 680px;
}

/* Success text in generated HTML (JS templates) */
.text-success-bold {
  color: var(--color-success);
  font-weight: 700;
}

.device-index .section__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* A-Z navigation */
.az-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 24px 0 32px;
}

.az-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--surface-dark);
  border: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.15s;
  text-decoration: none;
}

.az-letter:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Letter sections */
.letter-section {
  margin-top: 40px;
  scroll-margin-top: 80px;
}

.letter-heading {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* Brand details */
.brand-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  overflow: hidden;
  background: var(--surface-dark);
}

.brand-summary {
  padding: 10px 16px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  transition: background 0.15s;
  list-style: none;
}
.brand-summary::-webkit-details-marker { display: none; }
.brand-summary::marker { display: none; }
.brand-summary::before {
  content: '▸';
  display: inline-block;
  margin-right: 8px;
  transition: transform 0.2s;
  color: var(--text-muted);
}
.brand-group[open] .brand-summary::before {
  transform: rotate(90deg);
}
.brand-summary:hover { background: rgba(38,37,30,0.02); }

.brand-name { font-weight: 600; }
.brand-count {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 6px;
}

.device-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border-soft);
  border-top: 1px solid var(--border);
}

.device-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  background: var(--surface-dark);
  transition: background 0.15s;
  text-decoration: none;
}
.device-link:hover { background: rgba(245,78,0,0.04); }

.device-link__brand {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.device-link__name {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

/* ═══════════════════════════════════════════════════
   11. FAQ (BELOW THE FOLD — defer)
   ═══════════════════════════════════════════════════ */

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 56px;
}
.faq-item {
  background: var(--surface-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 26px;
}
.faq-question {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 8px;
}
.faq-answer {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════
   12. CTA SECTION (BELOW THE FOLD — defer)
   ═══════════════════════════════════════════════════ */

.cta-section {
  padding: 120px 0;
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.cta-section::before, .cta-section::after { display: none; }

.cta-section__inner { max-width: 640px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

.cta-section__title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}

.cta-section__sub {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════
   13. FOOTER (BELOW THE FOLD — defer)
   ═══════════════════════════════════════════════════ */

.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
  background: var(--bg);
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer__brand { display: flex; flex-direction: column; gap: 12px; }

.footer__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.4px;
  width: 148px;
}

.footer__desc {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 260px;
}

.footer__col-title {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.footer__col { }

.footer__col-links { display: flex; flex-direction: column; gap: 8px; }
.footer__col-links a {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-secondary);
}
.footer__col-links a:hover { color: var(--accent); }

.footer__bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer__copyright {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-dim);
}

/* ═══════════════════════════════════════════════════
   14. COMPATIBILITY-ADDED STYLES (migrated from HTML inline <style>)
   ═══════════════════════════════════════════════════ */

/* Hero padding override */
.compat-hero { padding-bottom: 0; }

/* Accordion toggle border variant */
.compat-acc { border-bottom: 1px solid var(--border); }

/* eSIM result — alternative layout (inline version with smaller sizing) */
.esim-result--compact {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 10px;
  background: rgba(38,37,30,0.02);
  border-radius: var(--radius-xs);
  border-bottom: 1px solid var(--border);
}
.esim-result--compact .esim-result__icon svg { width: 22px; height: 22px; }
.esim-result--compact .esim-result__text { display: flex; flex-direction: column; gap: 2px; }
.esim-result--compact .esim-result__text strong { font-size: 14px; font-weight: 600; }
.esim-result--compact .esim-result__text span { font-size: 12.5px; color: var(--text-secondary); }

/* Compact KVs — flex column instead of grid */
.compat-kvs--flex {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 6px 0;
  border-top: 1px solid var(--border-soft);
}

/* Compact KV items */
.compat-kv--flex {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
}
.compat-kv--flex > span:first-child { color: var(--text-dim); font-weight: 500; }
.compat-kv--flex > span:last-child { color: var(--text); font-weight: 600; text-align: right; }

/* Alternative compact instruction styles */
.compat-instructions--compact {
  padding: 12px 14px;
  background: rgba(38,37,30,0.02);
  border-radius: var(--radius-xs);
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  border: 1px solid var(--border-soft);
}
.compat-instructions--compact h4 { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.compat-instructions--compact ol { padding-left: 20px; margin: 0; }
.compat-instructions--compact li { margin-bottom: 4px; }
.compat-instructions--compact .setup-note {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0 0 10px;
  padding: 8px 10px;
  background: rgba(245,78,0,0.04);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  line-height: 1.5;
}

/* Install card — hover + card-specific overrides from HTML inline */
.install-card--compact {
  background: var(--surface-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.install-card--compact:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.install-card--compact .install-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.install-card--compact .install-card__brand {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.install-card--compact .install-card__badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}
.install-card--compact .install-card__badge--apple { background: rgba(122,132,136,0.14); color: #7a8488; }
.install-card--compact .install-card__badge--android { background: rgba(43,109,224,0.1); color: #2b6de0; }

.install-card--compact .install-card__title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.2px;
}

.install-card--compact .install-card__note {
  margin-top: 14px;
  padding: 10px 12px;
  background: rgba(128,128,128,0.06);
  border-radius: var(--radius-xs);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Steps with numbered circles — HTML inline variant */
.install-steps--numbered {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.install-steps--numbered li {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

.install-steps--numbered .install-steps__num {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  background: rgba(38,37,30,0.06);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.activation-methods--compact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 0px;
}

.activation-method--compact {
  font-size: 12.5px;
  color: var(--text-secondary);
  padding: 8px 12px;
  background: rgba(38,37,30,0.03);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xs);
  line-height: 1.5;
}
.activation-method--compact strong {
  color: var(--text);
  font-size: 12px;
}

/* ── Device Index variants (from HTML inline) ── */
.az-nav--compact {
  gap: 6px;
  margin: 36px 0 32px;
}

.az-letter--compact {
  border-radius: var(--radius-xs);
  transition: all var(--transition);
}
.az-letter--compact:hover { border-color: var(--accent); color: var(--accent); background: rgba(245,78,0,0.06); }

.letter-section--compact { margin-bottom: 40px; }

.letter-heading--compact {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.brand-group--compact {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: var(--surface-dark);
}

.brand-group--compact[open] summary::after { content: '\25BE'; }

.brand-summary--compact {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  cursor: pointer;
  list-style: none;
  transition: background var(--transition);
}
.brand-summary--compact::-webkit-details-marker { display: none; }
.brand-summary--compact:hover { background: rgba(245,78,0,0.02); }
.brand-summary--compact::after {
  content: '\25B8';
  margin-left: auto;
  font-size: 12px;
  color: var(--text-dim);
  transition: transform var(--transition);
}
.brand-group--compact[open] .brand-summary--compact::after { transform: rotate(90deg); }

.brand-name--compact {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.brand-count--compact {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  margin-left: 6px;
  background: rgba(0,0,0,0.06);
  padding: 1px 8px;
  border-radius: var(--radius-full);
}

.device-links--compact {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 8px;
  padding: 4px 14px;
  border-top: 1px solid var(--border);
}

.brand-group--compact[open] .device-links--compact { border-top: none; }

/* Device link horizontal layout (from HTML inline) */
.device-link--compact {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  transition: border-color var(--transition), transform var(--transition);
  text-decoration: none;
}
.device-link--compact:hover { border-color: rgba(245,78,0,0.3); transform: translateY(-1px); }

.device-link--compact .device-link__brand {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  min-width: 56px;
}

.device-link--compact .device-link__name {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-badge--esim {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  background: rgba(31,138,101,0.08);
  color: var(--color-success);
  flex-shrink: 0;
}
.device-badge--dual {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  background: rgba(55,114,207,0.08);
  color: var(--blue);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════
   15. RESPONSIVE
   ═══════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .install-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .install-grid { grid-template-columns: 1fr; }
  .device-links { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__mobile-toggle { display: flex; }
  .hero__inner {
    grid-template-columns: 1fr;
    padding: 56px 24px 40px;
    gap: 40px;
  }
  .hero { min-height: auto; padding-bottom: 40px; }
  .hero__panel { order: -1; }
  .features-grid { grid-template-columns: 1fr; }
  .install-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr; }
  .device-links { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .section { padding: 64px 0; }
  .cta-section { padding: 72px 0; }
  .cta-section__actions { flex-direction: column; align-items: stretch; }
  .cta-section__actions .btn-primary,
  .cta-section__actions .btn-ghost {
    text-align: center; justify-content: center;
  }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .compat-kvs { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .nav__actions .nav__link { display: none; }
  .nav__actions .nav__cta { display: none; }
  .hero__inner { padding: 44px 16px 32px; }
  .hero__title { font-size: clamp(1.9rem, 7.6vw, 2.4rem); letter-spacing: -0.02em; }
  .hero__sub { font-size: 0.94rem; }
  .hero__actions { width: 100%; }
  .hero__actions .btn-primary,
  .hero__actions .btn-ghost { width: 100%; justify-content: center; }
  .section { padding: 52px 0; }
  .section__inner, .cta-section__inner { padding: 0 16px; }
  .section-title { letter-spacing: -0.015em; }
  .compat-kvs { grid-template-columns: 1fr; }
  .az-letter { width: 28px; height: 28px; font-size: 12px; }
}

@media (max-width: 600px) {
  .compat-hero { min-height: auto; }
  .hero__inner {
    grid-template-columns: 1fr;
    padding: 44px 16px 32px;
    gap: 32px;
  }
  .hero { min-height: auto; }
  .hero__panel { order: 1; }
  .hero__trust { flex-direction: column; gap: 8px; }
  .device-index .device-links { grid-template-columns: 1fr; }
  .az-letter { width: 28px; height: 28px; font-size: 12px; }
  .letter-heading { font-size: 13px; }
  .brand-summary { padding: 8px 12px; }
  .brand-name { font-size: 13px; }
  .device-link__brand { display: none; }
}