/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --g-900:  #0A3D1F;
  --g-800:  #0F5229;
  --g-700:  #1A6B3A;
  --g-600:  #2E9E58;
  --g-500:  #3DB96A;
  --g-400:  #6DD49A;
  --g-100:  #E8F5EE;
  --g-50:   #F4FAF6;
  --dark:   #080C09;
  --grey-1: #111827;
  --grey-2: #374151;
  --grey-3: #6B7280;
  --grey-4: #9CA3AF;
  --grey-5: #E5E7EB;
  --white:  #FFFFFF;
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 12px rgba(0,0,0,.06);
  --shadow:    0 8px 32px rgba(0,0,0,.10);
  --shadow-lg: 0 24px 64px rgba(0,0,0,.16);
  --shadow-xl: 0 40px 100px rgba(0,0,0,.24);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--white);
  color: var(--grey-1);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ── Typography ─────────────────────────────────────────── */
h1 { font-size: clamp(2.8rem, 6vw, 4.8rem); font-weight: 900; line-height: 1.05; letter-spacing: -0.04em; }
h2 { font-size: clamp(2rem, 3.5vw, 3rem);   font-weight: 800; line-height: 1.15; letter-spacing: -0.03em; }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
p  { color: var(--grey-3); line-height: 1.7; }

.gradient-text {
  background: linear-gradient(135deg, #4ADE80 0%, #22C55E 40%, #16A34A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: 100px;
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  transition: all .22s cubic-bezier(.4,0,.2,1);
  border: 1.5px solid transparent;
  white-space: nowrap;
  letter-spacing: -.01em;
}
.btn svg { flex-shrink: 0; }
.btn--sm  { padding: 9px 18px; font-size: .85rem; }
.btn--lg  { padding: 15px 30px; font-size: 1rem; }

.btn--primary {
  background: var(--white);
  color: var(--g-700);
  border-color: transparent;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }

.btn--outline {
  background: rgba(255,255,255,.08);
  color: var(--white);
  border-color: rgba(255,255,255,.25);
  backdrop-filter: blur(12px);
}
.btn--outline:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.4); transform: translateY(-2px); }

.btn--dark {
  background: var(--grey-1);
  color: var(--white);
  border-color: transparent;
}
.btn--dark:hover { background: var(--grey-2); transform: translateY(-2px); box-shadow: var(--shadow); }

.btn--green {
  background: var(--g-600);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(46,158,88,.4);
}
.btn--green:hover { background: var(--g-500); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(46,158,88,.5); }

.btn--outline-dark {
  background: transparent;
  color: var(--grey-2);
  border-color: var(--grey-5);
}
.btn--outline-dark:hover { border-color: var(--g-600); color: var(--g-700); transform: translateY(-2px); }

/* ── Badge ──────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.badge--green { background: var(--g-100); color: var(--g-700); }
.badge--dark  { background: rgba(255,255,255,.1); color: rgba(255,255,255,.8); border: 1px solid rgba(255,255,255,.15); }
.badge--outline { background: transparent; color: var(--g-600); border: 1.5px solid var(--g-100); }

/* ── Section ────────────────────────────────────────────── */
.section { padding: 110px 0; }
.section__header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.section__header h2 { color: var(--grey-1); }
.section__header p  { font-size: 1.1rem; max-width: 480px; }

/* ── NAV ────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all .3s ease;
}
.nav.scrolled {
  background: rgba(8,12,9,.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 28px;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -.02em;
}
.nav__logo-icon { font-size: 1.2rem; }
.nav__links {
  display: flex;
  gap: 36px;
  list-style: none;
  margin-left: auto;
}
.nav__links a {
  font-size: .88rem;
  font-weight: 500;
  color: rgba(255,255,255,.6);
  transition: color .2s;
}
.nav__links a:hover { color: var(--white); }
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav__burger span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: all .3s; }
.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 28px 20px;
  background: rgba(8,12,9,.96);
  backdrop-filter: blur(24px);
  border-top: 1px solid rgba(255,255,255,.06);
}
.nav__mobile.open { display: flex; }
.nav__mobile a { font-size: .95rem; font-weight: 500; color: rgba(255,255,255,.7); padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.06); }
.nav__mobile .btn { margin-top: 10px; justify-content: center; }

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--dark);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Noise texture overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: .4;
  pointer-events: none;
  z-index: 1;
}

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% -10%, rgba(46,158,88,.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 50%, rgba(26,107,58,.25) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 0% 80%, rgba(15,82,41,.2) 0%, transparent 60%);
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 80px;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}
.hero__eyebrow-line {
  width: 32px;
  height: 1.5px;
  background: var(--g-500);
}

.hero__text h1 { color: var(--white); margin-bottom: 22px; }
.hero__sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,.55);
  margin-bottom: 40px;
  max-width: 460px;
  line-height: 1.75;
}

.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 52px; }

.hero__proof {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.proof-item { display: flex; flex-direction: column; gap: 3px; }
.proof-item__num { font-size: 1.6rem; font-weight: 800; color: var(--white); line-height: 1; letter-spacing: -.03em; }
.proof-item__label { font-size: .75rem; color: rgba(255,255,255,.4); font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.proof-divider { width: 1px; height: 36px; background: rgba(255,255,255,.1); }

/* ── Phone Mockups ─────────────────────────────────────── */
.hero__visual {
  position: relative;
  height: 580px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Glow behind phones */
.hero__visual::before {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46,158,88,.3) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  filter: blur(40px);
}

.phone {
  position: absolute;
  border-radius: 46px;
  overflow: hidden;
  box-shadow:
    0 0 0 8px rgba(255,255,255,.06),
    0 0 0 9px rgba(255,255,255,.02),
    var(--shadow-xl);
}

.phone--front {
  width: 210px;
  height: 440px;
  z-index: 3;
  transform: rotate(-4deg) translateX(30px);
  background: #0F1410;
  border: 1px solid rgba(255,255,255,.08);
}
.phone--back {
  width: 185px;
  height: 390px;
  z-index: 2;
  transform: rotate(7deg) translateX(-70px) translateY(30px);
  background: #0A100B;
  opacity: .9;
  border: 1px solid rgba(255,255,255,.05);
}
.phone--download {
  width: 230px;
  height: 480px;
  background: #0F1410;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow-xl);
}

.phone__notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 96px;
  height: 26px;
  background: #000;
  border-radius: 13px;
  z-index: 10;
}

/* Screen content */
.phone__screen {
  width: 100%;
  height: 100%;
}

.screen--assessment {
  background: #F2F2F7;
  padding: 52px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.scr-nav { height: 44px; background: white; border-radius: 10px; margin-bottom: 4px; display: flex; align-items: center; padding: 0 10px; gap: 6px; }
.scr-nav-dot { width: 28px; height: 6px; border-radius: 3px; background: var(--g-700); opacity: .7; }
.scr-icon-wrap { display: flex; justify-content: center; padding: 8px 0; }
.scr-icon { width: 52px; height: 52px; border-radius: 50%; background: var(--g-100); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; }
.scr-title { height: 12px; background: #1C1C1E; border-radius: 6px; width: 70%; margin: 0 auto; }
.scr-sub { height: 8px; background: #C7C7CC; border-radius: 4px; width: 55%; margin: 4px auto 8px; }
.scr-item { height: 38px; background: white; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.06); display: flex; align-items: center; padding: 0 10px; gap: 8px; }
.scr-item-num { width: 20px; height: 20px; border-radius: 50%; background: var(--g-100); flex-shrink: 0; font-size: .55rem; font-weight: 700; color: var(--g-700); display: flex; align-items: center; justify-content: center; }
.scr-item-line { flex: 1; height: 7px; background: #E5E5EA; border-radius: 4px; }

.screen--dashboard {
  background: #F2F2F7;
  padding: 52px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.scr-header { height: 48px; background: white; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.scr-tiles { display: flex; gap: 6px; }
.scr-tile { flex: 1; height: 70px; background: white; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.06); padding: 8px; }
.scr-tile-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--g-100); margin-bottom: 4px; }
.scr-tile-line { height: 6px; background: #E5E5EA; border-radius: 3px; width: 60%; margin-bottom: 3px; }
.scr-tile-val { height: 10px; background: var(--g-700); border-radius: 5px; width: 40%; opacity: .6; }
.scr-card { background: white; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.06); padding: 10px; }
.scr-card-head { height: 8px; background: var(--g-700); border-radius: 4px; width: 50%; margin-bottom: 8px; opacity: .7; }
.scr-card-row { height: 26px; background: var(--g-50); border-radius: 6px; margin-bottom: 5px; display: flex; align-items: center; gap: 6px; padding: 0 6px; }
.scr-card-circle { width: 14px; height: 14px; border-radius: 50%; background: var(--g-100); flex-shrink: 0; }
.scr-card-lines { flex: 1; }
.scr-card-line { height: 5px; background: #E5E5EA; border-radius: 3px; margin-bottom: 3px; }
.scr-card-line:last-child { width: 60%; margin: 0; }

/* Download screen */
.screen--download {
  background: #F2F2F7;
  padding: 52px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.ds-header { height: 52px; background: white; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.ds-card { display: flex; align-items: center; gap: 10px; padding: 10px; background: white; border-radius: 10px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.ds-icon { width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0; }
.ds-icon--green  { background: linear-gradient(135deg, var(--g-100), var(--g-400)); }
.ds-icon--blue   { background: linear-gradient(135deg, #DBEAFE, #93C5FD); }
.ds-icon--orange { background: linear-gradient(135deg, #FEF3C7, #FCD34D); }
.ds-lines { flex: 1; display: flex; flex-direction: column; gap: 5px; }
.ds-line { height: 8px; border-radius: 4px; background: #E5E5EA; }
.ds-line--lg { width: 80%; }
.ds-line--md { width: 60%; }
.ds-line--sm { width: 40%; }

/* ── FEATURES ───────────────────────────────────────────── */
.features { background: #FAFAFA; }

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}

.feat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--grey-5);
  transition: all .3s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
}
.feat-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1.5px solid transparent;
  background: linear-gradient(135deg, var(--g-400), transparent) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s;
}
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feat-card:hover::after { opacity: 1; }

.feat-card--hero {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--g-900) 0%, var(--g-800) 50%, var(--g-700) 100%);
  border-color: transparent;
  color: var(--white);
}
.feat-card--hero::after { display: none; }
.feat-card--hero:hover { transform: translateY(-4px); box-shadow: 0 24px 64px rgba(26,107,58,.4); }
.feat-card--hero h3 { color: var(--white); font-size: 1.4rem; }
.feat-card--hero p  { color: rgba(255,255,255,.65); }

.feat-card--dark {
  background: var(--grey-1);
  border-color: transparent;
  color: var(--white);
}
.feat-card--dark::after { display: none; }
.feat-card--dark:hover { box-shadow: 0 24px 64px rgba(0,0,0,.3); }
.feat-card--dark h3 { color: var(--white); }
.feat-card--dark p  { color: rgba(255,255,255,.5); }

.feat-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.feat-icon--green { background: var(--g-100); }
.feat-icon--white { background: rgba(255,255,255,.12); }
.feat-icon--grey  { background: rgba(255,255,255,.08); }

.feat-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.feat-tag {
  padding: 4px 12px;
  background: rgba(255,255,255,.12);
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 600;
  color: rgba(255,255,255,.8);
  border: 1px solid rgba(255,255,255,.1);
}

/* ── HOW IT WORKS ──────────────────────────────────────── */
.how { background: var(--white); }

.how__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.how__steps { display: flex; flex-direction: column; gap: 0; }
.how__step {
  display: flex;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--grey-5);
  cursor: pointer;
  transition: all .2s;
}
.how__step:last-child { border-bottom: none; }
.how__step:hover .how__step-num { background: var(--g-700); color: var(--white); }

.how__step-num {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--g-50);
  color: var(--g-700);
  font-size: 1.1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .25s;
  letter-spacing: -.02em;
}
.how__step--active .how__step-num {
  background: var(--g-700);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(26,107,58,.35);
}
.how__step-content h3 { color: var(--grey-1); margin-bottom: 6px; }
.how__step-content p  { font-size: .95rem; }
.how__step--active .how__step-content h3 { color: var(--g-700); }

.how__preview {
  position: sticky;
  top: 120px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 500px;
}
.how__preview-bg {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--g-50) 0%, transparent 70%);
  position: absolute;
}
.how__phone {
  width: 200px;
  height: 420px;
  background: var(--grey-1);
  border-radius: 42px;
  border: 1px solid rgba(255,255,255,.08);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
}
.how__phone .phone__notch { width: 80px; height: 22px; }
.how__phone-screen {
  width: 100%;
  height: 100%;
  background: #F2F2F7;
  padding: 42px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

/* ── DRILLS ─────────────────────────────────────────────── */
.drills { background: var(--grey-1); }
.drills .section__header h2 { color: var(--white); }
.drills .section__header p  { color: rgba(255,255,255,.45); }

.drills__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.drill-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  cursor: pointer;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.drill-card:hover,
.drill-card.active {
  background: rgba(46,158,88,.12);
  border-color: rgba(46,158,88,.4);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(46,158,88,.15);
}
.drill-card__emoji { font-size: 2rem; }
.drill-card__name { font-size: .85rem; font-weight: 700; color: rgba(255,255,255,.85); }
.drill-card__count {
  font-size: .75rem;
  font-weight: 600;
  color: var(--g-500);
  background: rgba(46,158,88,.12);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ── DOWNLOAD ───────────────────────────────────────────── */
.download {
  background: var(--dark);
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}
.download__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(46,158,88,.18) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 10% 50%, rgba(26,107,58,.12) 0%, transparent 60%);
  pointer-events: none;
}
.download__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.download__text { color: var(--white); }
.download__text h2 { color: var(--white); margin: 20px 0 16px; }
.download__text p  { color: rgba(255,255,255,.5); font-size: 1.05rem; margin-bottom: 36px; }

.download__links { display: flex; gap: 12px; flex-wrap: wrap; }
.download__note { margin-top: 20px; font-size: .8rem; color: rgba(255,255,255,.28); }

.download__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  height: 520px;
}
.download__glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46,158,88,.25) 0%, transparent 70%);
  filter: blur(40px);
}

/* ── FOOTER ─────────────────────────────────────────────── */
.footer {
  background: #040605;
  color: var(--white);
  border-top: 1px solid rgba(255,255,255,.05);
}
.footer__main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  padding: 72px 0 60px;
}
.footer__logo {
  font-size: 1.2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  letter-spacing: -.02em;
}
.footer__desc { font-size: .9rem; color: rgba(255,255,255,.35); line-height: 1.7; max-width: 260px; }
.footer__col-title {
  font-size: .72rem;
  font-weight: 700;
  color: rgba(255,255,255,.3);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 16px;
}
.footer__col a {
  display: block;
  font-size: .9rem;
  color: rgba(255,255,255,.5);
  margin-bottom: 10px;
  transition: color .2s;
}
.footer__col a:hover { color: var(--white); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.05);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__copy { font-size: .8rem; color: rgba(255,255,255,.2); }
.footer__bottom-link { font-size: .8rem; color: rgba(255,255,255,.2); transition: color .2s; }
.footer__bottom-link:hover { color: rgba(255,255,255,.5); }

/* ── Scroll Animation ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s cubic-bezier(.4,0,.2,1), transform .65s cubic-bezier(.4,0,.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.reveal-delay-4 { transition-delay: .32s; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; gap: 60px; padding-top: 120px; }
  .hero__sub { margin: 0 auto 40px; }
  .hero__actions { justify-content: center; }
  .hero__proof { justify-content: center; }
  .hero__visual { height: 400px; }
  .phone--front { width: 170px; height: 360px; transform: rotate(-4deg) translateX(20px); }
  .phone--back  { width: 150px; height: 316px; }
  .features__grid { grid-template-columns: 1fr 1fr; }
  .feat-card--hero { grid-column: span 2; }
  .how__inner { grid-template-columns: 1fr; }
  .how__preview { display: none; }
  .drills__grid { grid-template-columns: repeat(3, 1fr); }
  .download__inner { grid-template-columns: 1fr; text-align: center; }
  .download__links { justify-content: center; }
  .download__visual { height: auto; padding: 40px 0 0; }
  .footer__main { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav > .btn { display: none; }
  .nav__burger { display: flex; }
  .section { padding: 80px 0; }
  .features__grid { grid-template-columns: 1fr; }
  .feat-card--hero { grid-column: span 1; }
  .drills__grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .footer__main { grid-template-columns: 1fr; gap: 36px; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
}