/* ============================================================================
   lecturer.ng — Design System
   Navy/Indigo (trust) · Violet/Purple (premium) · Emerald (money / action)
   ========================================================================== */

/* --------------------------------------------------------------- TOKENS */
:root {
  /* base / surfaces */
  --ink:        #0a0e1f;   /* deepest navy */
  --bg:         #0c1124;   /* page background (dark) */
  --bg-2:       #0f1631;   /* raised panel */
  --surface:    #141c3d;   /* card surface */
  --surface-2:  #1a2450;   /* card hover / raised */
  --line:       rgba(255,255,255,.10);
  --line-2:     rgba(255,255,255,.16);

  /* brand */
  --violet:     #8b5cf6;
  --violet-2:   #a855f7;
  --indigo:     #6366f1;
  --blue:       #3b82f6;

  /* action / money */
  --green:      #10b981;
  --green-2:    #22c55e;
  --green-lift: #34d399;

  /* text */
  --text:       #eef1fb;
  --muted:      #a9b2d0;
  --muted-2:    #7c86a8;

  /* accents */
  --gold:       #fbbf24;

  /* gradients */
  --grad-brand: linear-gradient(135deg, #8b5cf6 0%, #6366f1 55%, #3b82f6 100%);
  --grad-green: linear-gradient(135deg, #22c55e 0%, #10b981 100%);
  --grad-text:  linear-gradient(120deg,#c4b5fd 0%,#a5b4fc 45%,#93c5fd 100%);

  /* effects */
  --radius:     18px;
  --radius-sm:  12px;
  --radius-lg:  26px;
  --shadow:     0 24px 60px -20px rgba(0,0,0,.65);
  --shadow-sm:  0 10px 30px -12px rgba(0,0,0,.55);
  --glow-green: 0 10px 40px -8px rgba(16,185,129,.55);
  --glow-violet:0 10px 40px -10px rgba(139,92,246,.55);
  --ring:       0 0 0 1px var(--line);

  --maxw: 1180px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* --------------------------------------------------------------- RESET */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1,h2,h3,h4 { line-height: 1.12; margin: 0 0 .5em; font-weight: 800; letter-spacing: -.02em; }
p { margin: 0 0 1rem; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--green-lift); outline-offset: 3px; border-radius: 6px; }

/* --------------------------------------------------------------- LAYOUT */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: clamp(56px, 8vw, 110px) 0; position: relative; }
.section--tight { padding: clamp(40px,6vw,72px) 0; }
.center { text-align: center; }
.narrow { max-width: 760px; margin-inline: auto; }

/* background dark gradient wash */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(139,92,246,.20), transparent 60%),
    radial-gradient(900px 700px at 100% 0%, rgba(59,130,246,.16), transparent 55%),
    radial-gradient(700px 600px at 50% 120%, rgba(16,185,129,.12), transparent 60%),
    var(--bg);
}

/* --------------------------------------------------------------- TYPE */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: #cbd5ff; padding: 7px 14px; border-radius: 999px;
  background: rgba(139,92,246,.12); border: 1px solid rgba(139,92,246,.32);
}
.eyebrow--green { color: #b7f7d8; background: rgba(16,185,129,.12); border-color: rgba(16,185,129,.34); }
.h-xl  { font-size: clamp(2.1rem, 6vw, 4rem); }
.h-lg  { font-size: clamp(1.8rem, 4.6vw, 2.9rem); }
.h-md  { font-size: clamp(1.4rem, 3.4vw, 2rem); }
.lead  { font-size: clamp(1.05rem, 1.8vw, 1.3rem); color: var(--muted); }
.muted { color: var(--muted); }
.grad-text {
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.green-text { color: var(--green-lift); }

/* --------------------------------------------------------------- BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-weight: 700; font-size: 1rem; padding: 15px 26px; border-radius: 999px;
  border: 1px solid transparent; transition: transform .18s var(--ease), box-shadow .25s var(--ease), background .25s;
  white-space: nowrap; text-align: center;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-lg { padding: 18px 34px; font-size: 1.08rem; }
.btn-block { width: 100%; }

.btn-green {
  background: var(--grad-green); color: #04231a; box-shadow: var(--glow-green);
  position: relative; overflow: hidden;
}
.btn-green:hover { transform: translateY(-2px); box-shadow: 0 18px 50px -8px rgba(16,185,129,.7); }
.btn-green::after {
  content: ""; position: absolute; top: 0; left: -120%; width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.55), transparent);
  transform: skewX(-18deg); transition: left .7s var(--ease);
}
.btn-green:hover::after { left: 140%; }

.btn-violet { background: var(--grad-brand); color: #fff; box-shadow: var(--glow-violet); }
.btn-violet:hover { transform: translateY(-2px); box-shadow: 0 18px 50px -8px rgba(139,92,246,.7); }

.btn-ghost { background: rgba(255,255,255,.04); color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { background: rgba(255,255,255,.09); transform: translateY(-2px); }

.btn-wa { background: #ffffff0d; color: #eafff3; border-color: rgba(34,197,94,.4); }
.btn-wa:hover { background: rgba(34,197,94,.12); transform: translateY(-2px); }
.btn .ic { width: 20px; height: 20px; flex: none; }

/* --------------------------------------------------------------- HEADER */
.site-header {
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(10,14,31,.72); border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.18rem; letter-spacing: -.02em; }
.brand-badge {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: var(--grad-brand); box-shadow: var(--glow-violet); font-size: 1.1rem;
  color: #fff; font-weight: 900;
}
.brand small { display:block; font-size: .62rem; letter-spacing:.22em; color: var(--muted-2); font-weight:700; margin-top:-2px; text-transform: uppercase;}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 14px; border-radius: 10px; font-weight: 600; font-size: .95rem; color: var(--muted);
  transition: color .2s, background .2s;
}
.nav-links a:hover, .nav-links a.active { color: #fff; background: rgba(255,255,255,.06); }
.nav-cta { margin-left: 6px; }
.nav-toggle {
  display: none; background: rgba(255,255,255,.06); border: 1px solid var(--line-2);
  width: 44px; height: 44px; border-radius: 12px; color: #fff;
}
.nav-toggle svg { width: 22px; height: 22px; margin: auto; display:block; }

.mobile-menu {
  position: fixed; inset: 70px 0 auto 0; z-index: 55;
  background: rgba(10,14,31,.98); border-bottom: 1px solid var(--line);
  padding: 14px 20px 22px; transform: translateY(-14px); opacity: 0; pointer-events: none;
  transition: transform .28s var(--ease), opacity .28s;
}
.mobile-menu.open { transform: none; opacity: 1; pointer-events: auto; }
.mobile-menu a { display: block; padding: 14px 12px; font-weight: 600; border-bottom: 1px solid var(--line); color: var(--text); }
.mobile-menu a:last-of-type { border-bottom: 0; }
.mobile-menu .btn { margin-top: 14px; }

/* --------------------------------------------------------------- HERO */
.hero { position: relative; padding: clamp(52px,9vw,120px) 0 clamp(48px,7vw,90px); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px,5vw,64px); align-items: center; }
.hero h1 { margin-top: 18px; }
.hero .lead { max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; }
.hero-trust .t { display: flex; flex-direction: column; }
.hero-trust .t b { font-size: 1.35rem; background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color: transparent; }
.hero-trust .t span { font-size: .82rem; color: var(--muted-2); }

.hero-visual { position: relative; }
.hero-card {
  background: linear-gradient(160deg, var(--surface), var(--bg-2));
  border: 1px solid var(--line-2); border-radius: var(--radius-lg); padding: 20px;
  box-shadow: var(--shadow); transform: rotate(1.4deg);
}
.hero-card img { border-radius: 14px; }
.hero-float {
  position: absolute; padding: 12px 16px; border-radius: 14px; font-weight: 700;
  background: rgba(12,17,36,.86); border: 1px solid var(--line-2); backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm); font-size: .9rem; display:flex; align-items:center; gap:10px;
}
.hero-float .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--green-2); box-shadow: 0 0 0 5px rgba(34,197,94,.18); }
.hero-float--tl { top: -14px; left: -18px; animation: floaty 5s var(--ease) infinite; }
.hero-float--br { bottom: -16px; right: -14px; animation: floaty 6s var(--ease) infinite reverse; }
@keyframes floaty { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-9px)} }

/* --------------------------------------------------------------- MARQUEE / logos */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); }
.strip .wrap { display: flex; flex-wrap: wrap; gap: 12px 34px; align-items: center; justify-content: center; padding-block: 18px; }
.strip .chip { font-size: .86rem; color: var(--muted); display: flex; align-items: center; gap: 8px; font-weight: 600; }
.strip .chip svg { width: 18px; height: 18px; color: var(--green-lift); }

/* --------------------------------------------------------------- CARDS */
.card {
  background: linear-gradient(165deg, var(--surface), var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); border-color: var(--line-2); box-shadow: var(--shadow); }
.card--glow::before {
  content:""; position:absolute; inset:0; border-radius:inherit; padding:1px;
  background: var(--grad-brand); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity:.6;
}
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2,1fr); }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-4 { grid-template-columns: repeat(4,1fr); }

/* feature icon */
.feat-ic {
  width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center;
  background: rgba(139,92,246,.14); border: 1px solid rgba(139,92,246,.3); margin-bottom: 14px;
}
.feat-ic svg { width: 24px; height: 24px; color: #c4b5fd; }
.feat-ic--green { background: rgba(16,185,129,.14); border-color: rgba(16,185,129,.32); }
.feat-ic--green svg { color: var(--green-lift); }

/* --------------------------------------------------------------- PROOF */
.proof-card { padding: 0; overflow: hidden; }
.proof-card figure { margin: 0; }
.proof-card img { width: 100%; aspect-ratio: 16/11; object-fit: cover; object-position: top center; background: #0a0e1f; }
.proof-card figcaption { padding: 15px 18px; font-size: .9rem; color: var(--muted); border-top: 1px solid var(--line); }
.proof-card figcaption b { color: #fff; display:block; margin-bottom: 2px; font-size:.96rem; }
.proof-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2; font-size: .72rem; font-weight: 800;
  letter-spacing: .04em; padding: 5px 11px; border-radius: 999px; text-transform: uppercase;
  background: var(--grad-green); color: #04231a; box-shadow: var(--glow-green);
}

/* testimonial screenshots */
.tcard img { width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--line); }
.tcard { display: flex; flex-direction: column; gap: 12px; }
.tcard .who { font-size: .86rem; color: var(--muted-2); }

/* --------------------------------------------------------------- PRICING */
.price-card { display: flex; flex-direction: column; }
.price-card .tag {
  align-self: flex-start; font-size: .74rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  color: var(--muted-2);
}
.price-card h3 { margin-top: 8px; font-size: 1.28rem; }
.price-row { display: flex; align-items: baseline; gap: 10px; margin: 6px 0 8px; }
.price-now { font-size: 2rem; font-weight: 900; letter-spacing: -.02em; }
.price-was { color: var(--muted-2); text-decoration: line-through; font-weight: 600; }
.price-card .desc { color: var(--muted); font-size: .95rem; flex: 1 0 auto; }
.price-card .btns { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.feature-list { margin: 10px 0 4px; display: flex; flex-direction: column; gap: 9px; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; font-size: .94rem; color: var(--text); }
.feature-list li svg { width: 19px; height: 19px; color: var(--green-lift); flex: none; margin-top: 2px; }

/* highlighted / best value */
.card--featured {
  border-color: rgba(34,197,94,.5);
  background:
    radial-gradient(500px 220px at 50% -30%, rgba(16,185,129,.18), transparent 70%),
    linear-gradient(165deg, var(--surface-2), var(--bg-2));
  box-shadow: var(--glow-green);
}
.ribbon {
  position: absolute; top: 18px; right: -34px; transform: rotate(45deg);
  background: var(--grad-green); color: #04231a; font-weight: 800; font-size: .72rem;
  padding: 6px 44px; letter-spacing: .05em; box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------- OFFER LADDER */
.ladder { display: grid; gap: 18px; grid-template-columns: repeat(3,1fr); }
.ladder .step { position: relative; }
.ladder .step .num { font-size: .8rem; font-weight: 800; color: var(--muted-2); letter-spacing:.1em; }
.ladder .step .amt { font-size: 1.5rem; font-weight: 900; margin: 4px 0; }
.ladder .step .amt.grad { background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color:transparent; }

/* --------------------------------------------------------------- FAQ */
.faq { max-width: 820px; margin-inline: auto; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; background: rgba(255,255,255,.02); transition: border-color .25s; }
.faq-item[open] { border-color: var(--line-2); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 700; font-size: 1.02rem;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { flex: none; width: 24px; height: 24px; position: relative; transition: transform .3s var(--ease); }
.faq-item summary .plus::before, .faq-item summary .plus::after {
  content: ""; position: absolute; background: var(--green-lift); border-radius: 2px; top: 50%; left: 50%;
}
.faq-item summary .plus::before { width: 14px; height: 2px; transform: translate(-50%,-50%); }
.faq-item summary .plus::after  { width: 2px; height: 14px; transform: translate(-50%,-50%); transition: transform .3s var(--ease); }
.faq-item[open] summary .plus::after { transform: translate(-50%,-50%) scaleY(0); }
.faq-item .faq-body { padding: 0 22px 20px; color: var(--muted); }

/* --------------------------------------------------------------- FORMS */
.form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.field {
  flex: 1 1 220px; background: rgba(255,255,255,.04); border: 1px solid var(--line-2);
  color: #fff; padding: 15px 18px; border-radius: 12px; font-size: 1rem; transition: border-color .2s, background .2s;
}
.field::placeholder { color: var(--muted-2); }
.field:focus { outline: none; border-color: var(--green-lift); background: rgba(255,255,255,.06); }
.form-note { font-size: .84rem; color: var(--muted-2); margin-top: 10px; }
.form-success {
  display: none; margin-top: 14px; padding: 14px 18px; border-radius: 12px;
  background: rgba(16,185,129,.12); border: 1px solid rgba(16,185,129,.4); color: #c7f9e2; font-weight: 600;
}
.form-success.show { display: block; animation: pop .4s var(--ease); }
@keyframes pop { from { transform: scale(.96); opacity: 0 } to { transform: none; opacity: 1 } }

/* --------------------------------------------------------------- PANELS / CTA band */
.band {
  border-radius: var(--radius-lg); padding: clamp(32px,5vw,60px);
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(139,92,246,.30), transparent 60%),
    radial-gradient(600px 300px at 100% 100%, rgba(16,185,129,.22), transparent 60%),
    linear-gradient(160deg, var(--surface-2), var(--bg-2));
  border: 1px solid var(--line-2); box-shadow: var(--shadow); text-align: center;
}
.pill-note {
  display: inline-flex; gap: 8px; align-items: center; font-size: .84rem; color: var(--muted);
  background: rgba(255,255,255,.04); border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px;
}

/* option cards (partnership) */
.opt { display: flex; gap: 16px; align-items: flex-start; }
.opt .n {
  flex: none; width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 900; background: var(--grad-brand); color: #fff; box-shadow: var(--glow-violet);
}

/* trust badges row */
.trust-badges { display: flex; flex-wrap: wrap; gap: 12px; }
.trust-badges .tb {
  display: flex; align-items: center; gap: 9px; font-size: .9rem; font-weight: 600;
  padding: 10px 16px; border-radius: 12px; background: rgba(255,255,255,.03); border: 1px solid var(--line);
}
.trust-badges .tb svg { width: 18px; height: 18px; color: var(--green-lift); }

/* --------------------------------------------------------------- VIDEO (click-to-play) */
.video-embed {
  position: relative; aspect-ratio: 16/9; width: 100%; border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--line-2); box-shadow: var(--shadow);
  background: #05070f center/cover no-repeat; cursor: pointer; isolation: isolate;
}
.video-embed::after { /* subtle gradient so the button/label pop over any poster */
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(60% 60% at 50% 42%, transparent, rgba(3,5,12,.28)), linear-gradient(to top, rgba(3,5,12,.7), transparent 55%);
  transition: opacity .3s;
}
.video-embed.playing { cursor: default; }
.video-embed.playing::after { opacity: 0; }
.video-embed video { position: absolute; inset: 0; width: 100%; height: 100%; display: block; z-index: 2; background: #000; }
.video-play {
  position: absolute; z-index: 3; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 82px; height: 82px; border-radius: 50%; border: 0; display: grid; place-items: center;
  background: var(--grad-green); box-shadow: var(--glow-green); transition: transform .2s var(--ease), box-shadow .25s;
}
.video-play::before { content: ""; position: absolute; inset: -10px; border-radius: 50%; border: 2px solid rgba(52,211,153,.5); animation: vpulse 2.2s var(--ease) infinite; }
@keyframes vpulse { 0%{transform:scale(1);opacity:.7} 100%{transform:scale(1.5);opacity:0} }
.video-play svg { width: 30px; height: 30px; margin-left: 4px; color: #04231a; }
.video-embed:hover .video-play { transform: translate(-50%,-50%) scale(1.08); box-shadow: 0 18px 50px -8px rgba(16,185,129,.75); }
.video-label {
  position: absolute; z-index: 3; left: 16px; bottom: 15px; right: 16px; display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: .95rem; color: #fff; text-shadow: 0 2px 12px rgba(0,0,0,.6);
}
.video-label .dur {
  margin-left: auto; font-size: .8rem; font-weight: 700; padding: 4px 10px; border-radius: 999px;
  background: rgba(3,5,12,.6); border: 1px solid var(--line-2); backdrop-filter: blur(6px);
}
.video-embed.playing .video-play, .video-embed.playing .video-label { display: none; }

/* --------------------------------------------------------------- STICKY MOBILE CTA */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; display: none;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(10,14,31,.94); border-top: 1px solid var(--line-2); backdrop-filter: blur(12px);
  gap: 10px;
}
.sticky-cta .btn { flex: 1; padding: 14px; }

/* --------------------------------------------------------------- FOOTER */
.site-footer { border-top: 1px solid var(--line); background: rgba(6,9,20,.6); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 34px; padding: 56px 0 34px; }
.footer-grid h4 { font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); }
.footer-grid a { display: block; color: var(--muted); padding: 6px 0; font-size: .95rem; transition: color .2s; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid var(--line); padding: 20px 0; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; color: var(--muted-2); font-size: .85rem; }
.footer-disc { font-size: .8rem; color: var(--muted-2); max-width: 560px; }

/* --------------------------------------------------------------- REVEAL ANIM */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s } .reveal.d2 { transition-delay: .16s }
.reveal.d3 { transition-delay: .24s } .reveal.d4 { transition-delay: .32s }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; scroll-behavior: auto !important; }
}

/* --------------------------------------------------------------- HELPERS */
.stack-gap > * + * { margin-top: 14px; }
.mt-s{margin-top:12px}.mt-m{margin-top:24px}.mt-l{margin-top:40px}
.mb-m{margin-bottom:24px}.mb-l{margin-bottom:44px}
.divider { height: 1px; background: var(--line); border: 0; margin: 0; }
.hl { color: #fff; font-weight: 700; }
.tiny { font-size: .82rem; }

/* --------------------------------------------------------------- RESPONSIVE */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 420px; margin-inline: auto; order: -1; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 780px) {
  .nav-links { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .sticky-cta { display: flex; }
  body { padding-bottom: 76px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: 1fr; }
  .hero-trust { gap: 16px 22px; }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero-cta .btn, .price-card .btn { width: 100%; }
}