/* Smart Recharge — landing + API page, full redesign (local only, no deploy).
   Shared design system for index.html and api.html.
   Tokens: white-dominant, one dark-green accent (#0F7A4E family),
   Hind Siliguri for Bengali, Inter for Latin digits/initials,
   8px grid, soft neutral shadows only, transform/opacity motion only. */

:root {
  --bg-page: #FFFFFF;
  --bg-mint-wash: #EEF7F1;
  --bg-mint: #EFF8F3;
  --bg-grey: #F7F8F7;
  --bg-footer: #121915;
  --bg-footer-bar: #0B100E;
  --green: #0F7A4E;
  --green-dark: #0B5E3C;
  --green-deep: #084A2F;
  --mint-pill-bg: #E6F4EB;
  --mint-border: #C9E7D3;
  --text-heading: #101613;
  --text-body: #4B5563;
  --text-muted: #7A8694;
  --text-on-dark: #FFFFFF;
  --text-footer-link: #C7CFC9;
  --border-pale: #E6EAE7;
  --card-tint-mint: #F0F8F3;
  --card-tint-grey: #F6F7F6;
  --problem-bg: #FDF2F2;
  --problem-border: #F3C6C6;
  --problem-icon: #D94848;
  --problem-text: #B42318;
  --problem-pill-bg: #FDECEC;
  --shadow-soft: 0 12px 32px rgba(16, 24, 40, 0.08);
  --shadow-card: 0 4px 16px rgba(16, 24, 40, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(16, 24, 40, 0.08);
  --shadow-header: 0 2px 12px rgba(16, 24, 40, 0.06);
  --shadow-lift: 0 24px 48px rgba(16, 24, 40, 0.12);
  /* One motion system: a single ease-out curve everywhere.
     UI 200–350ms; scroll-reveal 700ms on the same curve.
     Movement is transform/opacity only — never width, height, or margin,
     so nothing shifts layout while it animates. */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 200ms;
  --dur-base: 220ms;
  --dur-ui: 280ms;
  --dur-slow: 350ms;
  --dur-reveal: 700ms;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-body);
  font-family: "Hind Siliguri", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  color: var(--text-heading);
  margin: 0;
  line-height: 1.25;
}
h1 { font-size: 35px; font-weight: 800; line-height: 1.15; }
h2 { font-size: 28px; font-weight: 800; }
h3 { font-size: 18px; font-weight: 700; line-height: 1.4; }
p { margin: 0; }

a { color: var(--green); }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
  border-radius: 8px;
}

.skip-link {
  position: absolute;
  left: -9999px; top: 0;
  background: var(--green);
  color: #FFFFFF;
  padding: 8px 16px;
  z-index: 60;
}
.skip-link:focus { left: 16px; top: 16px; color: #FFFFFF; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}
.container-narrow { max-width: 880px; }

/* ---------- Scroll reveal (one system, transform + opacity only) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-reveal) var(--ease-out),
    transform var(--dur-reveal) var(--ease-out);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 90ms; }
.reveal-delay-2 { transition-delay: 180ms; }
.reveal-delay-3 { transition-delay: 270ms; }

/* ---------- 3D depth (transform only; JS sets --rx/--ry on .tilt) ---------- */
.scene { perspective: 1100px; }
.tilt {
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform var(--dur-slow) var(--ease-out),
    box-shadow var(--dur-slow) var(--ease-out);
  will-change: transform;
}
.tilt-layer { transform: translateZ(28px); }
.tilt-layer-deep { transform: translateZ(56px); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: 12px;
  font-family: "Hind Siliguri", system-ui, sans-serif;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color var(--dur-ui) var(--ease-out),
    border-color var(--dur-ui) var(--ease-out),
    color var(--dur-ui) var(--ease-out),
    box-shadow var(--dur-ui) var(--ease-out),
    filter var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
/* REC-036 hover/active: stronger hover delta + pressed state; brand greens unchanged. */
.btn-primary { background: var(--green); color: #FFFFFF; }
/* Phase 2 ব্যাচ ১, আইটেম ৫ (RC-23/REC-036): :hover-রুলগুলো শুধু hover-সক্ষম
   ডিভাইসে — টাচ/WebView-এ ট্যাপের পর :hover আটকে থাকত। :active রুলগুলো
   মিডিয়ার বাইরেই থাকে (টাচে press-ফিডব্যাক অক্ষত)। REC-036 ব্যাচ
   (sr-rec036-20261105.zip, ডেপ্লয়কৃত) hover-ডেল্টা শক্ত + :active যোগ
   করেছিল, কিন্তু @media (hover:hover)-এ মোড়ায়নি — সেটাই এখানে করা হলো;
   কোনো hover-মান বদলানো হয়নি, শুধু বাইন্ডিং। */
@media (hover:hover){
.btn-primary:hover { background: var(--green-deep); transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
}
.btn-primary:active { background: var(--green-deep); transform: translateY(0) scale(.98); box-shadow: none; }
.btn-secondary {
  background: #FFFFFF;
  color: var(--text-heading);
  border-color: var(--border-pale);
}
@media (hover:hover){
.btn-secondary:hover { background: var(--mint-pill-bg); border-color: var(--mint-border); color: var(--green-dark); transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
}
.btn-secondary:active { background: var(--mint-border); transform: translateY(0) scale(.98); box-shadow: none; }
.btn-dark { background: var(--text-heading); color: #FFFFFF; }
@media (hover:hover){
.btn-dark:hover { filter: brightness(1.25); transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
}
.btn-dark:active { filter: brightness(1.0); transform: translateY(0) scale(.98); box-shadow: none; }
.btn-plan { width: 100%; }
.btn-arrow .material-symbols-rounded { font-size: 20px; }

/* ---------- Header: logo + name left, standard menu button only right ----------
   No header CTA on any breakpoint. The nav is always the dropdown panel
   opened by the menu button — never an inline link row. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #FFFFFF;
  box-shadow: var(--shadow-header);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  position: relative;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text-heading);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark span { color: var(--green); }
.logo-mark {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 12px;
  background: var(--green);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
}
/* Finding 2 (2026-11-05): :189 .wordmark span (0,1,1) .logo-mark-এর color:#FFFFFF (0,1,0)-কে হারিয়ে দিত — bolt glyph #0F7A4E-এর উপর #0F7A4E হয়ে অদৃশ্য ছিল। এই (0,2,0) রুল সাদা রং ফেরত আনে; SVG-র fill এমনিতেই #FFFFFF। */
.wordmark .logo-mark { color: #FFFFFF; }
.logo-mark .logo-mark-icon { width: 24px; height: 24px; display: block; }
/* F-LA-74-1: অ্যাডমিন-ব্র্যান্ড-লোগো <img> (হেডার ৪৪px, ফুটার ৪০px);
   সোর্স একটাই — /assets/landing/logo.svg, কন্ট্রোলার ব্র্যান্ড-লোগো
   থাকলে সেটাতে বদলে দেয়; ছবি না-খুললে ইনলাইন-SVG বোল্ট ফলব্যাক। */
.wordmark-logo { height: 44px; width: auto; object-fit: contain; display: block; flex: none; }
.wordmark-footer .wordmark-logo { height: 40px; }
.menu-wrap { position: relative; }
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 10px;
  color: var(--text-heading);
  cursor: pointer;
  transition: background-color var(--dur-ui) var(--ease-out),
    border-color var(--dur-ui) var(--ease-out),
    color var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
@media (hover:hover){
.menu-toggle:hover { border-color: var(--mint-border); color: var(--green-dark); transform: translateY(-1px); }
}
/* Dropdown menu: visibility + opacity + transform (never display:none),
   so opening/closing fades and slides instead of flashing in. */
.main-nav {
  display: flex;
  flex-direction: column;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  width: min(320px, calc(100vw - 32px));
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 16px;
  padding: 8px;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out),
    visibility var(--dur-ui) var(--ease-out);
}
.main-nav.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.main-nav a {
  color: var(--text-body);
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border-radius: 10px;
  transition: color var(--dur-ui) var(--ease-out),
    background-color var(--dur-ui) var(--ease-out);
}
@media (hover:hover){
.main-nav a:hover { color: var(--green); background: var(--bg-mint); }
}
.main-nav a .material-symbols-rounded { color: var(--green); font-size: 22px; }
.main-nav .nav-divider { height: 1px; background: var(--border-pale); margin: 8px 8px; }
.main-nav .nav-api { color: var(--green-dark); background: var(--bg-mint); }
/* ---------- মেনু-অথ বাটন + ডার্ক-মোড টগল (2026-11-09, আইটেম ৮৯/৯০) ----------
   Steadfast-ক্রম: সবুজ পিল আগে, আউটলাইন পরে। মেনুর কলাম-লেআউটে
   পূর্ণ-প্রস্থ, 44px টাচ-টার্গেট, ফোকাস-দৃশ্যমান (B9)। */
.main-nav .nav-auth { margin-top: 8px; }
.main-nav a.nav-auth-signup { background: var(--green); color: #FFFFFF; border-radius: 999px; justify-content: center; }
.main-nav a.nav-auth-signup .material-symbols-rounded { color: #FFFFFF; }
@media (hover:hover){
.main-nav a.nav-auth-signup:hover { background: var(--green-deep); color: #FFFFFF; }
}
.main-nav a.nav-auth-login { border: 1px solid var(--mint-border); border-radius: 999px; justify-content: center; color: var(--green-dark); }
@media (hover:hover){
.main-nav a.nav-auth-login:hover { background: var(--bg-mint); color: var(--green-dark); }
}
.main-nav button.nav-theme-toggle { width: 100%; font: inherit; background: transparent; border: 1px solid var(--border-pale); border-radius: 999px; color: var(--text-body); cursor: pointer; min-height: 44px; display: flex; align-items: center; justify-content: center; gap: 12px; padding: 8px 16px; font-size: 16px; font-weight: 600; }
.main-nav button.nav-theme-toggle .material-symbols-rounded { color: var(--green); font-size: 22px; }
@media (hover:hover){
.main-nav button.nav-theme-toggle:hover { background: var(--bg-mint); color: var(--green-dark); }
}

/* ---------- ডার্ক মোড (2026-11-09, আইটেম ৯০) ----------
   ল্যান্ডিংয়ের নিজস্ব টোকেন-সেটের ডার্ক-মান ([data-theme="dark"])।
   --green টেক্সটে হালকা (ডার্ক-ব্যাগ্রাউন্ডে 4.5:1); সাদা-লেখার
   বাটন-ব্যাকগ্রাউন্ডে নিচের ওভাররাইডে আগের #0F7A4E-ই থাকে। */
[data-theme="dark"] {
  --bg-page: #0c1311;
  --bg-mint-wash: #0f2f28;
  --bg-mint: #122019;
  --bg-grey: #121a17;
  --bg-footer: #080d0b;
  --bg-footer-bar: #05080a;
  --green: #4cc38a;
  --green-dark: #7fd0ab;
  --green-deep: #084a2f;
  --mint-pill-bg: #123b32;
  --mint-border: #1e4a3e;
  --text-heading: #e8efec;
  --text-body: #b9c6c0;
  --text-muted: #8a9a93;
  --text-on-dark: #ffffff;
  --text-footer-link: #a8b5ae;
  --border-pale: #24322e;
  --card-tint-mint: #122019;
  --card-tint-grey: #141d1a;
  --problem-bg: #3d1a18;
  --problem-border: #5a2a26;
  --problem-icon: #f08080;
  --problem-text: #f5a3a3;
  --problem-pill-bg: #2a1414;
  --shadow-soft: 0 12px 32px rgba(0, 0, 0, .45);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, .35);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, .45);
  --shadow-header: 0 2px 12px rgba(0, 0, 0, .35);
  --shadow-lift: 0 24px 48px rgba(0, 0, 0, .55);
}
[data-theme="dark"] .site-header { background: #0c1311; }
[data-theme="dark"] .btn-primary,
[data-theme="dark"] .main-nav a.nav-auth-signup { background: #0f7a4e; color: #ffffff; }
[data-theme="dark"] .btn-primary:hover { background: #0b5e3c; }
[data-theme="dark"] .btn-secondary,
[data-theme="dark"] .main-nav a.nav-auth-login { background: transparent; color: #7fd0ab; }
[data-theme="dark"] .main-nav { background: #141d1a; }
[data-theme="dark"] .main-nav a { color: #b9c6c0; }
[data-theme="dark"] .menu-toggle { background: #141d1a; color: #e8efec; }

/* ---------- Sections: article treatment ---------- */
.section { padding: 48px 0; }
.section-dense { padding: 48px 0; }
.section-grey { background: var(--bg-grey); }
.section-mint { background: var(--bg-mint); }
.section-kicker {
  text-align: center;
  margin-bottom: 32px;
}
.section-pill {
  display: inline-block;
  background: var(--mint-pill-bg);
  color: var(--green-dark);
  border: 1px solid var(--mint-border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 16px;
}
.section-kicker h2 { max-width: 720px; margin: 0 auto; }
.section-lede {
  text-align: center;
  max-width: 640px;
  margin: 12px auto 0;
  font-size: 17px;
  line-height: 1.6;
}
.section-sub {
  text-align: center;
  max-width: 640px;
  margin: 16px auto 40px;
  font-size: 16px;
}
.section-cta { text-align: center; margin-top: 32px; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--bg-mint-wash) 100%);
  background-image:
    radial-gradient(rgba(15, 122, 78, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, #FFFFFF 0%, var(--bg-mint-wash) 100%);
  background-size: 24px 24px, 100% 100%;
  padding: 28px 0 40px;
  text-align: center;
  overflow: hidden;
}
.hero-inner { display: flex; flex-direction: column; align-items: center; }
.hero-pill {
  display: inline-block;
  background: var(--mint-pill-bg);
  color: var(--green-dark);
  border: 1px solid var(--mint-border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 16px;
}
.hero h1 { max-width: 800px; }
.hero h1 .green { color: var(--green); }
.hero-sub {
  max-width: 560px;
  color: var(--text-body);
  margin: 12px auto 0;
  font-size: 17px;
  line-height: 1.6;
}
.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
  width: 100%;
  max-width: 360px;
}
.hero-actions .btn { width: 100%; }

/* Hero entrance: transform + opacity only, staggered so the hero rises
   in one smooth pass — no layout shift, no load flash. */
@keyframes hero-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-pill, .hero h1, .hero-sub, .hero-actions {
  animation: hero-rise var(--dur-slow) var(--ease-out) both;
}
.hero h1 { animation-delay: 60ms; }
.hero-sub { animation-delay: 120ms; }
.hero-actions { animation-delay: 180ms; }

/* Hero stage: একক কেন্দ্রীভূত ভিডিও-ফ্রেম (ফোন-কার্ড বাদ — পয়েন্ট ১০);
   ভিডিও সর্বোচ্চ ৭৬০px চওড়া, মাঝখানে। */
.hero-stage {
  width: 100%;
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}
.hero-video { width: 100%; }
.hero-video-frame {
  aspect-ratio: 16 / 9;
  height: 100%;
  border: 1px solid var(--mint-border);
  border-radius: 24px;
  background: var(--bg-mint);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 32px 24px;
  overflow: hidden;
}
.hero-video-frame.has-video { padding: 0; background: var(--text-heading); }
.hero-video-frame video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
/* With a demo badge above the player, the video flexes instead of
   forcing 100% height (which would overflow the frame). */
.hero-video-frame.has-video video { height: auto; flex: 1 1 auto; min-height: 0; }
/* লাইটবক্স-পোস্টার: ফ্রেম ভরে, play-বাটন তার উপরে কেন্দ্রে। */
.hero-video-frame.has-video { position: relative; }
.hero-video-poster {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
}
.hero-video-frame .demo-badge { position: relative; z-index: 2; }
.hero-video-frame .hero-video-play { position: relative; z-index: 2; }
button.hero-video-play { border: 0; cursor: pointer; }
button.hero-video-play:hover { filter: brightness(1.08); }
.hero-video-play {
  width: 72px;
  height: 72px;
  flex: none;
  border-radius: 50%;
  background: var(--green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
}
.hero-video-play .material-symbols-rounded { font-size: 36px; }
.hero-video-note {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-heading);
  text-align: center;
  max-width: 420px;
}
.hero-card {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (hover:hover){
.hero-card:hover { box-shadow: var(--shadow-lift); }
}

/* ---------- CSS phone illustration (generic shapes only, no figures) ---------- */
/* Phone frames: decorative API cards keep the plain frame below.
   Real app phones use .phone-frame--real — an exact mobile-phone
   shape (9 / 19.5 aspect, tall rounded frame, centred notch pill)
   whose screen area flexes to fill the frame, so screenshots are
   never cropped: images use object-fit: contain with safe padding. */
.phone-frame {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border: 2px solid var(--text-heading);
  border-radius: 24px;
  padding: 16px 16px 24px;
  background: #FFFFFF;
  text-align: left;
  box-shadow: var(--shadow-card);
}
.phone-frame--real {
  max-width: 280px;
  aspect-ratio: 9 / 19.5;
  display: flex;
  flex-direction: column;
  border-width: 3px;
  border-radius: 38px;
  padding: 12px 12px 14px;
  overflow: hidden;
}
/* F-LA-70-1: স্ক্রিনশট না থাকলে ফোন-ফ্রেম hidden — display:flex
   [hidden]-কে হারিয়ে দিত বলে এই রুল বাধ্যতামূলক (modal/sheet-প্যাটার্ন)। */
.phone-frame[hidden] { display: none; }
.phone-notch {
  flex: none;
  width: 88px;
  height: 20px;
  margin: 0 auto 10px;
  border-radius: 999px;
  background: var(--text-heading);
}
.phone-top { display: flex; gap: 8px; justify-content: center; margin-bottom: 16px; }
.phone-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border-pale); }
.phone-label { font-size: 14px; font-weight: 600; color: var(--text-heading); margin-bottom: 8px; }
.phone-balance {
  border: 1px solid var(--mint-border);
  background: var(--bg-mint);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 16px;
}
.phone-balance p { font-size: 14px; color: var(--green-dark); font-weight: 600; }
.phone-field {
  height: 48px;
  border: 1px solid var(--border-pale);
  border-radius: 12px;
  background: var(--bg-grey);
  margin-bottom: 16px;
}
.phone-button {
  height: 48px;
  border-radius: 12px;
  background: var(--green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 16px;
}
.mock-row {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-pale);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-heading);
}
.mock-row .material-symbols-rounded { color: var(--green); font-size: 22px; }
.mock-row .mock-chev { color: var(--text-muted); margin-left: auto; }
.phone-frame-app .phone-button { margin-top: 16px; }

/* ---------- Steps: staggered scroll entrance ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  position: relative;
}
.step {
  position: relative;
  text-align: center;
  padding: 0 16px;
  /* Staggered entrance: each step rises a little later than the last,
     on the same ease-out curve — smooth, premium, no jank. */
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-reveal) var(--ease-out),
    transform var(--dur-reveal) var(--ease-out);
}
.steps.in-view .step { opacity: 1; transform: translateY(0); }
.steps.in-view .step:nth-child(1) { transition-delay: 0ms; }
.steps.in-view .step:nth-child(2) { transition-delay: 200ms; }
.steps.in-view .step:nth-child(3) { transition-delay: 400ms; }
.steps.in-view .step:nth-child(4) { transition-delay: 600ms; }
.step-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--bg-grey);
  transition: transform var(--dur-ui) var(--ease-out),
    box-shadow var(--dur-ui) var(--ease-out);
}
.step:hover .step-icon { transform: translateY(-2px) scale(1.04); }
.step-icon .material-symbols-rounded { font-size: 28px; }
.step-pill {
  display: inline-block;
  background: var(--mint-pill-bg);
  color: var(--green-dark);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}
.step h3 { margin-bottom: 8px; }
.step p:last-child { font-size: 15px; }

/* ---------- Problem / solution pairs ---------- */
/* in-view-এ তীর একবার সমাধানের দিকে সরে + সমাধান-কার্ডে নরম সবুজ
   টিন্ট — transform/border-মাত্র, লেআউট-পরিবর্তন নয়। */
.pairs.in-view .pair-arrow { animation: pair-nudge-y 900ms var(--ease-out) 200ms 1; }
@keyframes pair-nudge-y { 0%, 100% { translate: 0 0; } 40% { translate: 0 8px; } }
.pairs.in-view .card-solution { animation: solution-tint 900ms var(--ease-out) 200ms 1; }
@keyframes solution-tint {
  0%, 100% { border-color: var(--border-pale); box-shadow: var(--shadow-card); }
  40% { border-color: var(--green); box-shadow: 0 0 0 1px var(--green), var(--shadow-card); }
}
.pairs { display: flex; flex-direction: column; gap: 24px; }
.pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: stretch;
}
.card-problem, .card-solution {
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
.card-problem:hover, .card-solution:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.card-problem {
  background: var(--problem-bg);
  border: 1px solid var(--problem-border);
}
.card-solution {
  background: var(--card-tint-mint);
  border: 1px solid var(--mint-border);
}
.card-problem h3, .card-solution h3 { margin-bottom: 8px; }
.card-problem p:last-child, .card-solution p:last-child { font-size: 15px; }
.pair-pill {
  display: inline-block;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.pair-pill-problem { background: var(--problem-pill-bg); color: var(--problem-text); }
.pair-pill-solution { background: var(--mint-pill-bg); color: var(--green-dark); }
.pair-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.pair-icon .material-symbols-rounded { font-size: 24px; }
.pair-icon-problem { background: var(--problem-pill-bg); color: var(--problem-icon); }
.pair-icon-solution { background: var(--mint-pill-bg); color: var(--green); }
.pair-arrow {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  transform: rotate(90deg);
}
.pair-arrow .material-symbols-rounded { font-size: 24px; }

/* ---------- Features / offers ---------- */
.feature-grid, .offer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.feature-card, .offer-card {
  border: 1px solid var(--border-pale);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
@media (hover:hover){
.feature-card:hover, .offer-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
}
.feature-card h3, .offer-card h3 { margin-bottom: 8px; }
.feature-card p, .offer-card p { font-size: 15px; }
.tint-mint { background: var(--card-tint-mint); }
.tint-grey { background: var(--card-tint-grey); }
.offer-card { background: #FFFFFF; }
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-icon .material-symbols-rounded { font-size: 24px; }
.icon-green { background: var(--mint-pill-bg); color: var(--green); }
.mint-strip {
  margin-top: 40px;
  background: var(--bg-mint);
  border: 1px solid var(--mint-border);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: stretch;
  text-align: center;
}
.mint-strip p {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-heading);
}
.offer-note {
  text-align: center;
  font-size: 15px;
  margin-top: 32px;
}

/* ---------- Plans (price-free, as before) ---------- */
.plan-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.plan-card {
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
@media (hover:hover){
.plan-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }
}
.plan-highlight { border: 2px solid var(--green); }
.popular-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--green);
  color: #FFFFFF;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 700;
  z-index: 1;
}
.plan-head { padding: 32px 24px 24px; text-align: center; }
.plan-head-mint { background: var(--card-tint-mint); }
.plan-head-grey { background: var(--card-tint-grey); }
.plan-icon { font-size: 32px; margin-bottom: 8px; color: var(--green); }
.plan-head h3 { font-size: 20px; margin-bottom: 8px; }
.plan-head p { font-size: 15px; }
.plan-list {
  list-style: none;
  margin: 0;
  padding: 24px;
  flex: 1;
}
.plan-list li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-pale);
  font-size: 15px;
}
.plan-list li:last-child { border-bottom: 0; }
.plan-list .material-symbols-rounded { color: var(--green); font-size: 22px; flex: none; }
.plan-card .btn-plan { margin: 0 24px 24px; width: calc(100% - 48px); }
.plan-note {
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-heading);
  margin-top: 32px;
}

/* ---------- App ---------- */
.app-grid { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center; }
.app-copy h2, .app-copy .section-pill { text-align: left; margin-left: 0; margin-right: 0; }
.app-copy .section-pill { display: inline-block; }
.app-text { margin: 12px 0 20px; font-size: 17px; line-height: 1.6; }
.app-checklist {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
}
.app-checklist li {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-heading);
}
.app-checklist .material-symbols-rounded { color: var(--green); font-size: 24px; }
.app-note { font-size: 14px; color: var(--text-body); margin-top: 16px; }
.app-mockup { display: flex; justify-content: center; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 16px;
  overflow: hidden;
}
.faq-item h3 { font-size: 16px; }
.faq-q {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #FFFFFF;
  border: 0;
  padding: 16px 24px;
  font-family: "Hind Siliguri", system-ui, sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-heading);
  text-align: left;
  cursor: pointer;
}
.faq-chev {
  color: var(--green);
  font-size: 24px;
  flex: none;
  transition: transform var(--dur-slow) var(--ease-out);
}
.faq-q[aria-expanded="true"] .faq-chev { transform: rotate(180deg); }
/* Accordion: grid-rows 0fr -> 1fr, so opening/closing glides
   instead of snapping. */
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  padding: 0 24px;
  transition: grid-template-rows var(--dur-slow) var(--ease-out),
    padding-bottom var(--dur-slow) var(--ease-out);
}
.faq-a > p { overflow: hidden; min-height: 0; margin: 0; }
.faq-item.open .faq-a { grid-template-rows: 1fr; padding-bottom: 24px; }
.faq-a p { font-size: 15px; }

/* ---------- Final CTA ---------- */
.final-cta {
  background: var(--bg-mint);
  padding: 48px 0;
  text-align: center;
}
.final-cta h2 { margin-bottom: 16px; }
.final-cta p { max-width: 560px; margin: 0 auto 32px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-footer); color: var(--text-footer-link); }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 48px 16px 32px;
}
.wordmark-footer { color: var(--text-on-dark); }
.footer-col p { font-size: 15px; line-height: 1.6; margin-top: 12px; }
.footer-col h3 {
  color: var(--text-on-dark);
  font-size: 16px;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-footer-link);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.6;
  padding: 8px 0;
  min-height: 32px;
  transition: color var(--dur-ui) var(--ease-out);
}
.footer-col a:hover { color: #FFFFFF; }
.footer-bar { background: var(--bg-footer-bar); padding: 16px; }
.footer-bar p { font-size: 14px; text-align: center; }

/* ---------- Tutorial video gallery ---------- */
.video-grid {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 16px;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}
.video-card { flex: 0 0 85%; scroll-snap-align: start; }
.video-grid:empty { display: none; }
.video-card {
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
.video-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-mint);
  border-bottom: 1px solid var(--border-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.video-thumb img, .video-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.video-play {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  border: 0;
  border-radius: 50%;
  background: var(--green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: background-color var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
.video-play:hover { background: var(--green-dark); transform: translate(-50%, -50%) scale(1.05); }
.video-play .material-symbols-rounded { font-size: 28px; }
.video-body { padding: 20px 24px 24px; }
.video-body h3 { margin-bottom: 12px; }
.video-pill {
  display: inline-block;
  background: var(--mint-pill-bg);
  color: var(--green-dark);
  border: 1px solid var(--mint-border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}
.video-empty {
  text-align: center;
  background: var(--card-tint-mint);
  border: 1px dashed var(--mint-border);
  border-radius: 20px;
  padding: 48px 24px;
}
.video-empty-icon { color: var(--green); display: inline-block; margin-bottom: 16px; }
.video-empty-icon .material-symbols-rounded { font-size: 48px; }
.video-empty p {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-heading);
  max-width: 480px;
  margin: 0 auto;
}

/* ---------- API page (same system, same header/menu pattern) ---------- */
.api-scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.scope-card {
  border: 1px solid var(--border-pale);
  border-radius: 20px;
  padding: 24px;
  background: #FFFFFF;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}
.scope-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }
.scope-card h3 { margin-bottom: 8px; }
.scope-card p { font-size: 15px; }
.scope-card-out {
  background: var(--card-tint-grey);
}
.scope-card-out h3 { color: var(--text-body); }
.flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.flow-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #FFFFFF;
  border: 1px solid var(--border-pale);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.flow-num {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 50%;
  background: var(--green);
  color: #FFFFFF;
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.flow-step h3 { margin-bottom: 4px; }
.flow-step p { font-size: 15px; }

/* ---------- Tablet ---------- */
@media (min-width: 768px) {
  .container { padding: 0 24px; }
  .section { padding: 64px 0; }
  .section-dense { padding: 64px 0; }
  .hero { padding: 40px 0 48px; }
  h1 { font-size: 54px; }
  h2 { font-size: 38px; }
  .wordmark { font-size: 24px; }
  .hero-actions { flex-direction: row; width: auto; max-width: none; }
  .hero-actions .btn { width: auto; }
  .hero-stage { grid-template-columns: 1fr; }
  .hero-stage .hero-video { max-width: 760px; margin: 0 auto; }
  .video-grid { gap: 24px; }
  .video-card { flex-basis: calc(50% - 12px); }
  .steps { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .pair { grid-template-columns: 1fr auto 1fr; align-items: center; }
  .pair-arrow { transform: rotate(0deg); margin: 0; }
  .pairs.in-view .pair-arrow { animation-name: pair-nudge-x; }
  @keyframes pair-nudge-x { 0%, 100% { translate: 0 0; } 40% { translate: 8px 0; } }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .offer-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .mint-strip { flex-direction: row; align-items: center; justify-content: space-between; text-align: left; }
  .plan-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .app-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
  .api-scope-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .flow-list { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* ---------- Desktop ---------- */
@media (min-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .video-card { flex-basis: calc(33.333% - 16px); }
}

/* ---------- Reduced motion: everything still, no autoplay ----------
   Reveal and step elements render fully visible; tilt is inert;
   hero entrance and all transitions/animations are off. Video
   elements never autoplay (no autoplay attribute anywhere; script
   only plays on an explicit user press, and not under reduced motion). */
/* ---------- FAB + বটম-শিট (২০২৬-১১-০২) ---------- */
.sr-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 150;
  width: 56px; height: 56px; border: 0; border-radius: 50%;
  background: var(--green); color: #FFFFFF; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
}
.sr-fab .material-symbols-rounded { font-size: 28px; transition: transform var(--dur-fast) var(--ease-out); }
/* F-LA-66-1: FAB-মর্ফ — খোলা অবস্থায় আইকন ২০০ms-এ ৯০° ঘোরে (more_horiz → close);
   reduced-motion-এ blanket-রুলে transition বন্ধ (instant)। */
.sr-fab[aria-expanded="true"] .material-symbols-rounded { transform: rotate(90deg); }
.sr-sheet-backdrop {
  position: fixed; inset: 0; z-index: 160;
  background: rgba(16, 22, 19, 0.55);
  display: flex; align-items: flex-end; justify-content: center;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}
.sr-sheet-backdrop.open { opacity: 1; }
.sr-sheet-backdrop[hidden] { display: none; }
.sr-sheet {
  width: 100%; max-width: 480px; background: #FFFFFF;
  border-radius: 24px 24px 0 0; padding: 12px 20px 28px;
  transform: translateY(100%);
  transition: transform 280ms var(--ease-out);
}
.sr-sheet-backdrop.open .sr-sheet { transform: translateY(0); }
.sr-sheet-handle {
  display: block; width: 40px; height: 4px; margin: 0 auto 16px;
  border-radius: 999px; background: var(--border-pale);
}
.sr-sheet h3 { margin-bottom: 12px; }
.sr-sheet-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 8px; border-radius: 12px;
  font-size: 16px; font-weight: 600; color: var(--text-heading);
  text-decoration: none;
  /* F-LA-66-1: আইটেম-stagger — শিট খুললে প্রতিটা আইটেম ৩৫ms ব্যবধানে
     ওঠে (delay শুধু .open-অবস্থায়; বন্ধের সময় delay ০ — সাথে সাথে মিলায়)। */
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.sr-sheet-backdrop.open .sr-sheet-item {
  opacity: 1;
  transform: translateY(0);
  transition-delay: var(--stagger, 0ms);
}
.sr-sheet-item:hover { background: var(--bg-mint); }
.sr-sheet-item .material-symbols-rounded { color: var(--green); }

/* ---------- ভিডিও-লাইটবক্স ---------- */
.sr-lightbox {
  position: fixed; inset: 0; z-index: 190;
  background: rgba(11, 16, 14, 0.88);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.sr-lightbox-box {
  position: relative; width: 100%; max-width: 960px;
  background: #000; border-radius: 16px; overflow: hidden;
}
.sr-lightbox-box video { width: 100%; display: block; aspect-ratio: 16 / 9; }
/* F-LA-71-1: YouTube টিউটোরিয়াল iframe-এ খেলে (embed) — ভিডিও-ট্যাগে নয়। */
.sr-lightbox-box iframe { width: 100%; display: block; aspect-ratio: 16 / 9; border: 0; }
.sr-lightbox-close {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  width: 40px; height: 40px; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, 0.92); color: #111; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- প্ল্যান-ফ্যাক্ট / রিভিউ / ব্লগ ---------- */
.plan-facts { list-style: none; margin: 0 0 16px; padding: 0 24px; }
.plan-facts li {
  display: flex; gap: 8px; padding: 8px 0;
  border-top: 1px solid var(--border-pale);
  font-size: 15px; color: var(--text-body);
}
.plan-fact-label { font-weight: 700; color: var(--text-heading); white-space: nowrap; }
.review-grid {
  display: grid; grid-template-columns: 1fr; gap: 16px;
}
@media (min-width: 768px) { .review-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; } }
@media (min-width: 1100px) { .review-grid { grid-template-columns: repeat(3, 1fr); } }
.review-card {
  background: #FFFFFF; border: 1px solid var(--border-pale);
  border-radius: 20px; padding: 24px; box-shadow: var(--shadow-card);
}
.review-stars { color: var(--green); margin-bottom: 12px; }
.review-stars .material-symbols-rounded { font-size: 20px; font-variation-settings: "FILL" 1; }
.review-text { font-size: 16px; line-height: 1.6; margin-bottom: 16px; }
.review-who { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 44px; height: 44px; flex: none; border-radius: 50%;
  background: var(--bg-mint); color: var(--green-dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px;
}
.review-meta { font-size: 14px; color: var(--text-muted); }
.review-meta strong { color: var(--text-heading); font-size: 15px; }
.blog-grid {
  display: grid; grid-template-columns: 1fr; gap: 16px;
}
@media (min-width: 768px) { .blog-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; } }
@media (min-width: 1100px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }
.blog-card {
  background: #FFFFFF; border: 1px solid var(--border-pale);
  border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-card);
  padding-bottom: 20px;
}
.blog-thumb { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.blog-card h3 { padding: 16px 20px 0; }
.blog-excerpt { padding: 8px 20px 0; font-size: 15px; color: var(--text-body); }
.blog-more {
  margin: 12px 20px 0; border: 0; background: none; cursor: pointer;
  font-size: 15px; font-weight: 700; color: var(--green);
}
.blog-article { background: #FFFFFF; border: 1px solid var(--border-pale); border-radius: 20px; padding: 24px; margin-top: 16px; }
.blog-date { font-size: 14px; color: var(--text-muted); margin: 8px 0 16px; }
.blog-detail-image img { width: 100%; border-radius: 12px; margin-bottom: 16px; }
.blog-body { font-size: 16px; line-height: 1.7; }
.blog-body h1, .blog-body h2, .blog-body h3 { margin: 20px 0 8px; }
.blog-body p { margin-bottom: 12px; }
.blog-body ul, .blog-body ol { margin: 0 0 12px 20px; }
.footer-legal { margin-top: 8px; }
.footer-legal a { color: var(--text-muted); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; scroll-padding-top: 0; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal, .step { opacity: 1 !important; transform: none !important; }
  .tilt { transform: none !important; }
}


/* ---------- App slideshow (real phone frame, JS-driven) ---------- */
.app-showcase { display: flex; flex-direction: column; gap: 24px; }
.slideshow-viewport { overflow: hidden; border-radius: 24px; }
.phone-frame--real .slideshow-viewport { flex: 1; min-height: 0; }
.slideshow-track { display: flex; height: 100%; transition: transform 350ms var(--ease-out); }
.slide { flex: 0 0 100%; min-height: 280px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 24px 16px; background: var(--bg-grey); border: 1px solid var(--border-pale); border-radius: 12px; }
.phone-frame--real .slide { min-height: 0; height: 100%; padding: 12px; }
/* Contain-fit: the whole screenshot stays visible, fully and clearly,
   at any aspect ratio — letterboxed, never cropped at any edge. */
.slide img { width: 100%; height: 100%; object-fit: contain; display: block; border-radius: 8px; }
.slide-placeholder-label { font-weight: 700; color: var(--text-heading); margin-bottom: 8px; }
.slide-placeholder-note { font-size: 14px; color: var(--text-muted); }
.slideshow-controls { flex: none; display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 12px; }
.slide-arrow { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border-pale); background: #FFFFFF; color: var(--green-dark); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: box-shadow var(--dur-ui) var(--ease-out), transform var(--dur-ui) var(--ease-out); }
.slide-arrow:hover { box-shadow: var(--shadow-card); transform: translateY(-1px); }
.slide-dots { display: flex; gap: 8px; }
.slide-dot { width: 10px; height: 10px; border-radius: 50%; border: none; background: var(--border-pale); cursor: pointer; padding: 0; }
.slide-dot.dot-active { background: var(--green); }
.slideshow-status { flex: none; text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* ---------- Level-detail modal + activation form ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(16, 22, 19, 0.55); display: flex; align-items: flex-start; justify-content: center; padding: 24px 16px; overflow-y: auto; z-index: 200; }
.modal-backdrop[hidden] { display: none; }
.modal-card { background: #FFFFFF; border-radius: 20px; padding: 28px 24px; max-width: 640px; width: 100%; position: relative; box-shadow: var(--shadow-lift); }
.modal-close { position: absolute; top: 12px; right: 12px; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border-pale); background: #FFFFFF; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--text-heading); }
.modal-line { color: var(--text-body); margin-bottom: 16px; }
.modal-benefits { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.modal-benefits li { padding-left: 24px; position: relative; color: var(--text-body); }
.modal-benefits li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
.modal-note { font-size: 14px; color: var(--text-muted); margin: 12px 0 20px; }
.charge-table { width: 100%; border-collapse: collapse; margin-bottom: 8px; }
.charge-table th, .charge-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border-pale); font-size: 15px; }
.charge-table th { color: var(--text-heading); font-weight: 600; }
.charge-table td { color: var(--text-body); }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-weight: 600; color: var(--text-heading); margin-bottom: 6px; font-size: 15px; }
.form-field input, .form-field select { width: 100%; padding: 12px 14px; border: 1px solid var(--border-pale); border-radius: 12px; font-size: 16px; font-family: inherit; background: #FFFFFF; }
.form-field input[aria-invalid="true"], .form-field select[aria-invalid="true"] { border-color: var(--problem-icon); }
.form-message { margin-top: 12px; font-size: 15px; color: var(--text-body); }
.form-message-error { color: #B42318; font-weight: 600; }
.form-message-ok { color: var(--green-dark); font-weight: 600; }
.form-message-note { color: var(--text-heading); }

/* ---------- API page: guidance, operator table, sandbox, examples ---------- */
.guidance-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.note-card { background: #FFFFFF; border: 1px solid var(--border-pale); border-radius: 20px; padding: 24px; box-shadow: var(--shadow-card); }
.table-wrap { overflow-x: auto; }
.operator-table { width: 100%; border-collapse: collapse; background: #FFFFFF; border: 1px solid var(--border-pale); border-radius: 16px; overflow: hidden; }
.operator-table th, .operator-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-pale); font-size: 15px; }
.operator-table th { background: var(--bg-mint); color: var(--text-heading); font-weight: 700; }
.operator-table code { font-family: "Inter", system-ui, sans-serif; background: var(--bg-grey); padding: 2px 8px; border-radius: 6px; }
.sandbox-grid { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
.sandbox-form { background: #FFFFFF; border: 1px solid var(--border-pale); border-radius: 20px; padding: 24px; box-shadow: var(--shadow-card); }
.sandbox-output h3 { margin: 0 0 8px; }
.code-block { background: #121915; color: #E6F4EB; border-radius: 12px; padding: 16px; font-size: 14px; line-height: 1.6; overflow-x: auto; white-space: pre-wrap; word-break: break-word; margin: 0 0 20px; font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; }
.example-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.example-card { background: #FFFFFF; border: 1px solid var(--border-pale); border-radius: 20px; padding: 24px; box-shadow: var(--shadow-card); }
.example-card h3 { margin-bottom: 12px; }
.example-card .code-block { margin-bottom: 0; }
@media (min-width: 768px) {
  .guidance-grid { grid-template-columns: repeat(2, 1fr); }
  .sandbox-grid { grid-template-columns: 1fr 1.2fr; }
  .example-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Demo-video badge: visible on every demo-video slot ---------- */
.demo-badge {
  display: inline-block;
  background: var(--mint-pill-bg);
  color: var(--green-dark);
  border: 1px solid var(--mint-border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}
.hero-video-frame .demo-badge { margin-bottom: 8px; }
.video-body .video-pill + .video-pill { margin-left: 8px; }

/* ---------- Icon protection guard (LAST rule — never move above other rules) ---------- */
.material-symbols-rounded {
  font-family: 'Material Symbols Rounded' !important;
  font-weight: normal !important;
  font-style: normal !important;
  line-height: 1 !important;
  letter-spacing: normal !important;
  text-transform: none !important;
  display: inline-block !important;
  white-space: nowrap !important;
  word-wrap: normal !important;
  direction: ltr !important;
  -webkit-font-smoothing: antialiased !important;
}