/* ════════════════════════════════════════════════════════════════
   SYNORA VENTURES — Design System
   "Where ideas come to light."
   Dark-first · Aurora palette · Neural motif · Motion-ready
   Palette & type per Brand Book v1.0 / Reference v2.1
   ════════════════════════════════════════════════════════════════ */

/* ── Design tokens ─────────────────────────────────────────── */
:root {
  /* Brand core */
  --space:      #0B1020;   /* Deep Space Blue */
  --ink:        #1A2233;
  --cyan:       #27F5FF;   /* Electric Cyan */
  --violet:     #6C5CE7;   /* Aurora Violet */
  --soft-gray:  #AAB4C5;
  --mid-gray:   #5A6679;
  --cloud:      #EEF2F8;
  --amber:      #FFB454;
  --green:      #4ADE80;
  --rose:       #FF6B8B;

  /* Dark surfaces (depth ladder) */
  --bg:         #070A14;
  --surface:    #0B1020;
  --surface-2:  #0E1424;
  --surface-3:  #131C30;
  --surface-4:  #18223a;
  --line:       rgba(170,180,197,.12);
  --line-strong:rgba(170,180,197,.22);

  /* Text */
  --text:       #EAF0FA;
  --text-dim:   #AAB4C5;
  --text-mute:  #6B7689;

  /* Signature gradients */
  --aurora:        linear-gradient(135deg, #6C5CE7 0%, #27F5FF 100%);
  --aurora-soft:   linear-gradient(135deg, rgba(108,92,231,.18), rgba(39,245,255,.16));
  --aurora-text:   linear-gradient(120deg, #B7AEFF 0%, #27F5FF 60%, #8af 100%);

  /* Glow */
  --glow-cyan:   0 0 40px rgba(39,245,255,.35);
  --glow-violet: 0 0 44px rgba(108,92,231,.40);

  /* Type */
  --font-display: "Space Grotesk", "Estedad", system-ui, sans-serif;
  --font-body:    "Inter", "Vazirmatn", system-ui, -apple-system, sans-serif;

  /* Radii */
  --r-sm: 10px;  --r-md: 16px;  --r-lg: 22px;  --r-xl: 30px;  --r-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0,0,0,.25);
  --shadow-md: 0 10px 34px rgba(3,6,15,.5);
  --shadow-lg: 0 30px 80px rgba(3,6,15,.65);

  /* Spacing & layout */
  --container: 1200px;
  --container-wide: 1400px;
  --nav-h: 74px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

/* ── Reset & base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--text);
}
h1 { font-size: clamp(2.4rem, 5.4vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }

p  { color: var(--text-dim); }
a  { color: var(--cyan); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: #8ff9ff; }
img, svg, canvas { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; }
::selection { background: rgba(39,245,255,.28); color: #fff; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

/* Scrollbar */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-4); border-radius: 99px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #243152; }

/* ── Helpers ───────────────────────────────────────────────── */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container-wide { max-width: var(--container-wide); }
.section { padding: clamp(64px, 9vw, 130px) 0; position: relative; }
.section-sm { padding: clamp(48px, 6vw, 84px) 0; }
.text-center { text-align: center; }
.grad-text {
  background: var(--aurora-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.muted { color: var(--text-dim); }
.dim   { color: var(--text-mute); }
.lead  { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--text-dim); max-width: 60ch; }
.mono  { font-feature-settings: "tnum"; font-variant-numeric: tabular-nums; }
.nowrap{ white-space: nowrap; }
.hidden{ display: none !important; }

/* Eyebrow / kicker */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display);
  font-size: .76rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase;
  color: var(--cyan);
  padding: 7px 15px; border-radius: var(--r-pill);
  background: rgba(39,245,255,.07);
  border: 1px solid rgba(39,245,255,.2);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: var(--glow-cyan); animation: pulse-dot 2.4s var(--ease) infinite; }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin: 18px 0 14px; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  --btn-bg: var(--surface-3);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: .98rem;
  padding: 14px 26px; border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: var(--btn-bg); color: var(--text);
  transition: transform .25s var(--ease), box-shadow .3s var(--ease), background .25s, border-color .25s;
  position: relative; overflow: hidden; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 18px; height: 18px; }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn-primary {
  background: var(--aurora); color: #04121b; border: none; font-weight: 700;
  box-shadow: 0 8px 26px rgba(39,245,255,.28);
}
.btn-primary:hover { color: #04121b; box-shadow: 0 14px 40px rgba(39,245,255,.45); }
.btn-primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.45) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .7s var(--ease);
}
.btn-primary:hover::after { transform: translateX(120%); }

.btn-ghost { background: rgba(255,255,255,.03); }
.btn-ghost:hover { background: rgba(255,255,255,.07); border-color: var(--cyan); color: var(--cyan); }
.btn-sm { padding: 9px 17px; font-size: .85rem; }
.btn-block { width: 100%; }

/* ── Badges / pills ────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: .74rem; font-weight: 600; letter-spacing: .03em;
  padding: 5px 12px; border-radius: var(--r-pill);
  border: 1px solid var(--line-strong); color: var(--text-dim);
  background: rgba(255,255,255,.03);
  font-family: var(--font-display); text-transform: uppercase;
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge-live    { color: var(--green);  border-color: rgba(74,222,128,.4);  background: rgba(74,222,128,.1); }
.badge-soon    { color: var(--cyan);   border-color: rgba(39,245,255,.4);  background: rgba(39,245,255,.1); }
.badge-planned { color: var(--soft-gray); }
.badge-amber   { color: var(--amber);  border-color: rgba(255,180,84,.4);  background: rgba(255,180,84,.1); }
.badge-violet  { color: #b7aeff;       border-color: rgba(108,92,231,.4);  background: rgba(108,92,231,.12); }

/* ── Cards & glass ─────────────────────────────────────────── */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.01));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px;
  position: relative; overflow: hidden;
  transition: transform .4s var(--ease-out), border-color .35s, box-shadow .4s;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: var(--aurora-soft);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .4s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); box-shadow: var(--shadow-md); }
.card:hover::before { opacity: 1; }
.card.is-hover-glow:hover { box-shadow: var(--shadow-md), 0 0 60px -20px rgba(39,245,255,.4); }

.glass {
  background: rgba(14,20,36,.62);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--line);
}

/* Icon chip */
.icon-chip {
  width: 56px; height: 56px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--aurora-soft); border: 1px solid rgba(39,245,255,.22);
  color: var(--cyan); flex-shrink: 0;
}
.icon-chip svg { width: 26px; height: 26px; }
.icon-chip.violet { color: #b7aeff; }

/* ════════════════════════════════════════════════════════════
   NAVIGATION
   ════════════════════════════════════════════════════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .35s var(--ease), border-color .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7,10,20,.78);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: var(--text-dim); font-weight: 500; font-size: .95rem;
  padding: 9px 15px; border-radius: var(--r-pill); transition: color .2s, background .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: rgba(255,255,255,.05); }
.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; background: none; border: none; color: var(--text); padding: 8px; }
.nav-toggle svg { width: 26px; height: 26px; }

/* Logo / wordmark — neural constellation */
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark { width: 34px; height: 34px; flex-shrink: 0; }
.logo-mark .node { fill: var(--cyan); }
.logo-mark .node.v { fill: var(--violet); }
.logo-mark .edge { stroke: rgba(170,180,197,.55); stroke-width: 1.4; }
.logo-word { font-family: var(--font-display); font-weight: 700; font-size: 1.32rem; letter-spacing: .04em; color: var(--text); }
.logo:hover .logo-mark .node { filter: drop-shadow(0 0 5px var(--cyan)); }

/* ════════════════════════════════════════════════════════════
   HERO + NEURAL CANVAS
   ════════════════════════════════════════════════════════════ */
.neural-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.neural-bg canvas { width: 100%; height: 100%; opacity: .85; }
.aurora-blob {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5;
  pointer-events: none; z-index: 0; animation: drift 22s var(--ease) infinite alternate;
}
.aurora-blob.a { width: 520px; height: 520px; background: radial-gradient(circle, rgba(108,92,231,.55), transparent 70%); top: -160px; left: -120px; }
.aurora-blob.b { width: 460px; height: 460px; background: radial-gradient(circle, rgba(39,245,255,.4), transparent 70%); bottom: -180px; right: -100px; animation-delay: -8s; }

.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding-top: var(--nav-h); overflow: hidden; }
.hero .container { position: relative; z-index: 2; }
.hero-inner { max-width: 880px; }
.hero h1 { margin: 26px 0; }
.hero .lead { font-size: clamp(1.1rem, 1.9vw, 1.45rem); max-width: 56ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.hero-scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 2;
  color: var(--text-mute); font-size: .78rem; letter-spacing: .2em; text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.hero-scroll .line { width: 1px; height: 42px; background: linear-gradient(var(--cyan), transparent); animation: scroll-line 2s var(--ease) infinite; }

.hero-stats { display: flex; flex-wrap: wrap; gap: 36px; margin-top: 54px; padding-top: 30px; border-top: 1px solid var(--line); }
.hero-stat .num { font-family: var(--font-display); font-size: 1.9rem; font-weight: 700; }
.hero-stat .lbl { font-size: .82rem; color: var(--text-mute); letter-spacing: .04em; }

/* ════════════════════════════════════════════════════════════
   MARKETING SECTIONS
   ════════════════════════════════════════════════════════════ */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Engine cards */
.engine-card { display: flex; flex-direction: column; min-height: 280px; }
.engine-card .icon-chip { margin-bottom: 22px; }
.engine-card h3 { margin-bottom: 12px; }
.engine-card .engine-detail { font-size: .92rem; color: var(--text-mute); margin-top: auto; padding-top: 18px; }
.engine-stat { margin-top: 20px; display: flex; align-items: baseline; gap: 8px; }
.engine-stat .v { font-family: var(--font-display); font-size: 2rem; font-weight: 700; }
.engine-stat .u { font-size: .82rem; color: var(--text-mute); }

/* Product cards */
.product-card { display: flex; flex-direction: column; }
.product-card .pc-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.product-card .pc-icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; flex-shrink: 0; }
.product-card .pc-icon svg { width: 24px; height: 24px; }
.product-card h3 { margin-bottom: 8px; }
.product-card .pc-tag { color: var(--text-dim); font-size: .95rem; flex-grow: 1; }
.product-card .pc-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); font-size: .85rem; }
.product-card .pc-foot .by { color: var(--text-mute); font-family: var(--font-display); letter-spacing: .03em; }

/* Split feature row */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split .visual { position: relative; }

/* AI-native callout */
.callout { text-align: center; border-radius: var(--r-xl); padding: clamp(48px, 7vw, 90px) 32px; position: relative; overflow: hidden; }
.callout h2 { max-width: 18ch; margin: 0 auto 20px; }
.callout .lead { margin: 0 auto; }

/* Proof / numbers strip */
.proof-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.proof-cell { background: var(--surface); padding: 30px 22px; text-align: center; }
.proof-cell .num { font-family: var(--font-display); font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 700; }
.proof-cell .lbl { font-size: .8rem; color: var(--text-mute); margin-top: 6px; }

/* Discipline list */
.discipline-item { display: flex; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.discipline-item:last-child { border-bottom: none; }
.discipline-item .k { font-family: var(--font-display); font-weight: 700; color: var(--text); min-width: 200px; }
.discipline-item .v { color: var(--text-dim); }

/* CTA band */
.cta-band { position: relative; border-radius: var(--r-xl); overflow: hidden; padding: clamp(50px, 7vw, 96px) 32px; text-align: center; border: 1px solid var(--line); }
.cta-band .container { position: relative; z-index: 2; }

/* Inline waitlist form */
.waitlist-form { display: flex; gap: 12px; max-width: 480px; margin: 26px auto 0; }
.waitlist-form.left { margin-inline: 0; }
.waitlist-form input[type=email] {
  flex: 1; padding: 14px 18px; border-radius: var(--r-pill);
  background: rgba(255,255,255,.05); border: 1px solid var(--line-strong); color: var(--text); font-size: .95rem;
}
.waitlist-form input::placeholder { color: var(--text-mute); }
.waitlist-form input:focus { border-color: var(--cyan); background: rgba(39,245,255,.06); }

/* ── FAQ accordion ─────────────────────────────────────────── */
.acc-item .acc-a { max-height: 0; overflow: hidden; opacity: 0; transition: max-height .4s var(--ease), opacity .35s var(--ease), padding .4s var(--ease); padding-top: 0; padding-bottom: 0; }
.acc-item.open .acc-a { max-height: 360px; opacity: 1; padding-bottom: 22px; }
.acc-item .acc-ic { transition: transform .35s var(--ease); }
.acc-item.open .acc-ic { transform: rotate(45deg); }
.acc-q { cursor: pointer; }

/* ── Forms (general) ───────────────────────────────────────── */
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 8px; color: var(--text-dim); font-family: var(--font-display); }
.input, .textarea, .select {
  width: 100%; padding: 13px 16px; border-radius: var(--r-md);
  background: var(--surface-2); border: 1px solid var(--line-strong); color: var(--text);
  font-family: inherit; font-size: .95rem; transition: border-color .2s, box-shadow .2s;
}
.input:focus, .textarea:focus, .select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(39,245,255,.12); outline: none; }
.textarea { min-height: 140px; resize: vertical; }

/* ── Flash messages ────────────────────────────────────────── */
.flash-stack { position: fixed; top: calc(var(--nav-h) + 14px); right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; max-width: 380px; }
.flash {
  display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: var(--r-md);
  background: var(--surface-3); border: 1px solid var(--line-strong); box-shadow: var(--shadow-md);
  animation: flash-in .5s var(--ease-out) both; font-size: .92rem;
}
.flash.success { border-left: 3px solid var(--green); }
.flash.error   { border-left: 3px solid var(--rose); }
.flash .x { margin-left: auto; background: none; border: none; color: var(--text-mute); font-size: 1.2rem; line-height: 1; }

/* ════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════ */
.footer { border-top: 1px solid var(--line); padding: 70px 0 36px; position: relative; background: var(--surface); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer h4 { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--text-mute); margin-bottom: 18px; font-family: var(--font-display); }
.footer-links a { display: block; color: var(--text-dim); padding: 6px 0; font-size: .95rem; }
.footer-links a:hover { color: var(--cyan); }
.footer-brand p { max-width: 38ch; margin-top: 16px; color: var(--text-mute); font-size: .95rem; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 28px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.footer-bottom .copy { color: var(--text-mute); font-size: .85rem; }
.socials { display: flex; gap: 10px; }
.socials a { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-strong); color: var(--text-dim); transition: all .25s; }
.socials a:hover { color: var(--cyan); border-color: var(--cyan); transform: translateY(-2px); }
.socials svg { width: 17px; height: 17px; }

/* ════════════════════════════════════════════════════════════
   MOTION
   ════════════════════════════════════════════════════════════ */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }
[data-reveal][data-delay="4"] { transition-delay: .32s; }
[data-reveal][data-delay="5"] { transition-delay: .40s; }

@keyframes pulse-dot { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.5); opacity: .55; } }
@keyframes drift { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(40px,30px) scale(1.12); } }
@keyframes scroll-line { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }
@keyframes flash-in { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: none; } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes float-y { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes ring-pulse { 0% { box-shadow: 0 0 0 0 rgba(39,245,255,.4);} 100% { box-shadow: 0 0 0 16px rgba(39,245,255,0);} }
.float { animation: float-y 6s var(--ease) infinite; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .discipline-item { flex-direction: column; gap: 6px; }
  .discipline-item .k { min-width: 0; }
}
@media (max-width: 720px) {
  .nav-links, .nav-right .btn { display: none; }
  .nav-toggle { display: block; }
  .nav.menu-open .nav-links {
    display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(7,10,20,.97); backdrop-filter: blur(20px); padding: 18px 24px 26px; gap: 4px; border-bottom: 1px solid var(--line);
  }
  .nav.menu-open .nav-links a { width: 100%; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .waitlist-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
}