/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --navy:      #0f1729;
  --navy-2:    #141d33;
  --card-bg:   #161f37;
  --card-bg-2: #1c2745;

  --text:      #f3f6fb;
  --text-dim:  #9aa6c2;
  --text-mute: #6b7592;

  --cyan:      #3ab4f2;
  --cyan-dim:  rgba(58,180,242,0.5);
  --cyan-soft: rgba(58,180,242,0.13);
  --cyan-line: rgba(58,180,242,0.32);

  --orange:      #e8490f;
  --orange-hover:#ff6a3b;
  --orange-soft: rgba(232,73,15,0.16);

  --line: rgba(243,246,251,0.09);

  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --sans:    "Inter", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  background: var(--navy);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 {
  font-family: var(--display);
  text-wrap: balance;
  line-height: 1.06;
  letter-spacing: -0.015em;
  font-weight: 700;
}
em { color: var(--cyan); font-style: normal; }
::selection { background: var(--cyan); color: var(--navy); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

/* =============================================================
   3. Utilities
   ============================================================= */
.container { width: 100%; max-width: 1180px; margin-inline: auto; padding-inline: 1.25rem; }
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--text); color: var(--navy);
  z-index: 9999; border-radius: 8px; font-weight: 600;
  transition: top .2s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: .9rem;
  font-weight: 600;
}
.eyebrow-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-soft);
  flex-shrink: 0;
}
.section-title { font-size: clamp(1.9rem, 4vw, 2.75rem); max-width: 20ch; margin-bottom: 1rem; }
.sub, .section-title + .sub { color: var(--text-dim); font-size: 1rem; max-width: 46ch; }
.section-note { font-family: var(--mono); font-size: .78rem; color: var(--text-mute); margin-top: -.4rem; margin-bottom: 2.5rem; }

/* =============================================================
   4. Buttons
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .9rem 1.7rem; border-radius: 999px; font-weight: 700; font-size: .95rem;
  white-space: nowrap;
  transition: transform .45s var(--ease-soft), box-shadow .45s var(--ease-soft), background .3s var(--ease-out), color .3s var(--ease-out);
}
.btn-primary { background: var(--orange); color: #180b04; box-shadow: 0 4px 20px rgba(232,73,15,.28); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(232,73,15,.4); background: var(--orange-hover); }
.btn-primary:active { transform: translateY(-1px); transition-duration: .12s; }
.btn-ghost { border: 1px solid var(--cyan-line); color: var(--cyan); }
.btn-ghost:hover { background: var(--cyan-soft); transform: translateY(-3px); }
.btn-sm { padding: .6rem 1.25rem; font-size: .85rem; }

/* =============================================================
   5. Nav
   ============================================================= */
.nav { position: fixed; top: 0; inset-inline: 0; z-index: 100; border-bottom: 1px solid transparent;
  transition: background-color .4s var(--ease-out), backdrop-filter .4s var(--ease-out), border-color .4s var(--ease-out); }
.nav.is-scrolled { background: rgba(15,23,41,.86); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); border-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding-block: 1.05rem; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; }
.brand-logo { height: 30px; width: auto; }
.nav .brand-logo { height: 100px; }
.brand-fallback { display: none; font-family: var(--display); font-weight: 700; font-size: 1.15rem; letter-spacing: .01em; }
.brand.logo-fallback .brand-logo { display: none; }
.brand.logo-fallback .brand-fallback { display: inline; }
.nav-links { display: none; align-items: center; gap: 2rem; }
.nav-link { position: relative; font-size: .92rem; color: var(--text-dim); padding: .25rem 0; transition: color .3s var(--ease-out); }
.nav-link::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--cyan); transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease-soft); }
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav > .nav-inner > .btn { display: none; }
.nav-burger { display: grid; place-items: center; gap: 4px; width: 40px; height: 40px; }
.nav-burger span { display: block; width: 20px; height: 2px; background: var(--text); transition: transform .3s var(--ease-soft), opacity .3s var(--ease-soft); }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-mobile {
  position: fixed; inset: 0; z-index: 90; background: var(--navy);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.75rem;
  opacity: 0; visibility: hidden; transform: translateY(-18px);
  transition: opacity .4s var(--ease-soft), transform .4s var(--ease-soft), visibility 0s linear .4s;
}
.nav-mobile.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity .4s var(--ease-soft), transform .4s var(--ease-soft), visibility 0s linear 0s; }
.nav-mobile a { font-family: var(--display); font-size: 1.4rem; font-weight: 700; }

/* =============================================================
   6. Hero
   ============================================================= */
.hero { position: relative; overflow: clip; padding-block: clamp(7rem, 15vw, 9.5rem) clamp(4rem, 9vw, 6.5rem); }
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-dotgrid {
  position: absolute; inset: -10% -5% auto auto; width: 46%; height: 60%;
  background-image: radial-gradient(var(--line) 1.4px, transparent 1.4px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 70% 70% at 70% 20%, black 30%, transparent 75%);
  opacity: .8;
}
.hero-pulse {
  position: absolute; width: 42vw; height: 42vw; max-width: 620px; max-height: 620px;
  top: -16%; left: -12%; border-radius: 50%; filter: blur(80px);
  background: radial-gradient(circle, var(--cyan-soft), transparent 70%);
  animation: pulseBreathe 9s ease-in-out infinite;
}
@keyframes pulseBreathe { 0%, 100% { transform: scale(1); opacity: .8; } 50% { transform: scale(1.16); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .hero-pulse { animation: none; } }

.hero-inner { position: relative; z-index: 1; display: grid; gap: 3.5rem; align-items: start; }
.hero-title { font-size: clamp(2.3rem, 6.4vw, 4.1rem); max-width: 15ch; margin-bottom: 1.5rem; }
.hero-sub { color: var(--text-dim); font-size: clamp(1rem, 1.6vw, 1.15rem); max-width: 46ch; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; }

.hero-visual { position: relative; padding-top: 2.5rem; display: flex; justify-content: flex-end; }
.hero-frame { position: relative; margin-left: 8%; width: fit-content; }
.hero-accent-line {
  position: absolute; left: -1.75rem; top: -1.5rem; bottom: 3rem; width: 3px;
  background: linear-gradient(var(--cyan), transparent);
  border-radius: 2px;
}
.hero-tag {
  position: absolute; left: -1.5rem; bottom: -1.5rem;
  background: var(--card-bg); border: 1px solid var(--cyan-line);
  padding: 1rem 1.25rem; border-radius: 10px;
  font-family: var(--display); font-weight: 600; font-size: .92rem; line-height: 1.35;
  color: var(--text); max-width: 15ch;
  box-shadow: 0 30px 60px -24px rgba(0,0,0,.55);
}

.ph-block {
  position: relative;
  background: repeating-linear-gradient(135deg, var(--card-bg-2), var(--card-bg-2) 12px, var(--card-bg) 12px, var(--card-bg) 24px);
  border: 1px dashed var(--cyan-line);
  border-radius: 14px;
  display: grid; place-items: center;
  text-align: center;
  padding: 1.5rem;
}
.ph-tall { aspect-ratio: 4 / 5; }

.phone {
  width: min(320px, 82vw);
  background: linear-gradient(160deg, var(--card-bg-2), var(--card-bg));
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: .9rem .9rem 1.2rem;
  box-shadow: 0 40px 90px -30px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.03) inset;
}
.phone-notch { width: 90px; height: 6px; border-radius: 999px; background: rgba(255,255,255,.12); margin: 0 auto .9rem; }
.phone-header { display: flex; align-items: center; gap: .65rem; padding-bottom: .8rem; margin-bottom: .8rem; border-bottom: 1px solid var(--line); }
.phone-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--card-bg); display: grid; place-items: center; flex-shrink: 0; }
.phone-avatar svg { width: 20px; height: 20px; }
.phone-header-text { display: flex; flex-direction: column; gap: .1rem; }
.phone-header-text strong { font-size: .85rem; }
.phone-header-text small { font-size: .72rem; color: var(--text-mute); display: inline-flex; align-items: center; gap: .35rem; }
.dot-online { width: 6px; height: 6px; border-radius: 50%; background: #3ecf8e; display: inline-block; }

.phone-chat { display: flex; flex-direction: column; gap: .6rem; min-height: 260px; }
.msg {
  max-width: 84%; padding: .6rem .85rem; border-radius: 14px; font-size: .84rem; line-height: 1.45;
  opacity: 1; transform: none;
  transition: opacity .5s var(--ease-out), transform .5s var(--ease-soft);
}
html.js-ready .msg { opacity: 0; transform: translateY(10px); }
html.js-ready .msg.is-shown { opacity: 1; transform: none; }
.msg-in { align-self: flex-start; background: var(--card-bg-2); border-bottom-left-radius: 4px; color: var(--text); }
.msg-out { align-self: flex-end; background: linear-gradient(135deg, var(--cyan), #227fbd); border-bottom-right-radius: 4px; color: #eaf6ff; }
.msg-typing { align-self: flex-start; display: none; gap: .3rem; padding: .7rem .9rem; background: var(--card-bg-2); border-bottom-left-radius: 4px; }
html.js-ready .msg-typing.is-shown { display: inline-flex; }
.msg-typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--text-mute); animation: typingBounce 1.1s ease-in-out infinite; }
.msg-typing span:nth-child(2) { animation-delay: .15s; }
.msg-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes typingBounce { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .msg-typing span { animation: none; opacity: .8; } }
.ph-label {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--cyan);
  background: rgba(15,23,41,.82);
  padding: .6rem 1rem;
  border-radius: 8px;
  max-width: 80%;
}

/* =============================================================
   7. Bottlenecks section
   ============================================================= */
.bottlenecks { padding-block: clamp(4.5rem, 10vw, 7.5rem); }
.head { max-width: 720px; margin-bottom: 3.25rem; }
.grid { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); gap: 1.1rem; }
.flow-svg { position: absolute; inset: 0; z-index: 0; overflow: visible; pointer-events: none; }
.flow-svg path { fill: none; stroke: var(--cyan); stroke-width: 1.5; opacity: .5; stroke-linecap: round; transition: stroke-dashoffset 1.9s var(--ease-out); }
.flow-pulse {
  position: absolute; top: 0; left: 0; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px;
  border-radius: 50%; background: radial-gradient(circle, #d6f0fd 0%, var(--cyan) 55%, transparent 78%);
  box-shadow: 0 0 18px 4px rgba(58,180,242,.6); z-index: 0; pointer-events: none; opacity: 0;
  transition: opacity .6s ease;
}
.flow-pulse.is-flowing { opacity: 1; animation: flowMove 5.5s linear infinite; }
@keyframes flowMove { from { offset-distance: 0%; } to { offset-distance: 100%; } }
@media (max-width: 900px) { .flow-svg, .flow-pulse { display: none; } }

.card {
  position: relative; z-index: 1; overflow: hidden;
  background: var(--card-bg); border: 1px solid var(--line); border-radius: 6px;
  padding: 2.1rem 2rem; display: flex; flex-direction: column; justify-content: flex-end; min-height: 220px;
  opacity: 0; transform: translateY(38px);
  transition: opacity .75s var(--ease-out), transform .75s var(--ease-out), border-color .35s ease, box-shadow .35s ease;
}
.card.is-revealed { opacity: 1; transform: translateY(0); }
@media (hover: hover) and (pointer: fine) {
  .card:hover { border-color: var(--cyan-line); box-shadow: 0 24px 48px -28px rgba(58,180,242,.4); }
  .card:hover .num { transform: scale(1.035) translateY(var(--num-drift, 0px)); }
  .cta { transition: gap .3s cubic-bezier(.34,1.56,.64,1), color .3s ease; }
  .cta:hover { gap: .85rem; color: var(--orange-hover); }
}
.c1 { grid-column: 1 / 8; grid-row: 1 / 3; background: var(--card-bg-2); }
.c2 { grid-column: 8 / 13; grid-row: 1 / 2; align-items: flex-start; text-align: right; }
.c3 { grid-column: 8 / 13; grid-row: 2 / 3; align-items: flex-start; text-align: right; }
.c4 { grid-column: 1 / 6; grid-row: 3 / 4; }
.c5 { grid-column: 6 / 13; grid-row: 3 / 4; background: var(--card-bg-2); }
.c6 { grid-column: 1 / 13; margin-top: .4rem; background: var(--card-bg-2); }
.num {
  position: absolute; font-weight: 700; line-height: 1; color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan-dim); user-select: none; pointer-events: none;
  opacity: 0; transform: scale(1.14) translateY(18px);
  transition: opacity 1s var(--ease-out), transform 1.1s var(--ease-out); transition-delay: .18s; will-change: transform;
}
.card.is-revealed .num { opacity: var(--num-o, .5); transform: scale(1) translateY(var(--num-drift, 0px)); }
.c1 .num { font-size: 10.5rem; top: -1.5rem; left: -.5rem; --num-o: .55; }
.c2 .num, .c3 .num { font-size: 5.2rem; top: -.5rem; right: -.3rem; --num-o: .4; }
.c4 .num { font-size: 6rem; bottom: -1.3rem; left: -.3rem; --num-o: .5; }
.c5 .num { font-size: 7.5rem; bottom: -1.7rem; right: -.2rem; --num-o: .5; }
.c6 .num { font-size: 9rem; bottom: -2rem; right: 1rem; --num-o: .45; }
.card h3 { position: relative; font-size: 1.18rem; margin-bottom: .55rem; max-width: 30ch; }
.c1 h3 { font-size: 1.65rem; max-width: 20ch; }
.c6 h3 { max-width: 34ch; }
.card p.desc { position: relative; font-size: .92rem; color: var(--text-dim); line-height: 1.55; max-width: 34ch; }
.c1 p.desc { max-width: 40ch; font-size: 1rem; }
.c6 p.desc { max-width: 44ch; }
.c2 p.desc, .c3 p.desc { margin-left: auto; }
.closer-line { position: relative; font-size: 1rem; color: var(--text-dim); margin-top: .9rem; }
.cta { display: inline-flex; align-items: center; gap: .5rem; color: var(--orange); font-weight: 700; font-size: 1rem; white-space: nowrap; border-bottom: 1px solid var(--orange); padding-bottom: 2px; }

/* =============================================================
   8. Testimonials
   ============================================================= */
.testimonials { padding-block: clamp(4.5rem, 10vw, 7.5rem); background: var(--navy-2); }
.testimonials-layout { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.test-stack { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.test-card {
  background: var(--card-bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 1.85rem 1.7rem; display: flex; flex-direction: column; gap: 1.3rem;
  transition: transform .4s var(--ease-soft), border-color .4s var(--ease-soft);
}
.test-card:hover { transform: translateY(-5px); border-color: var(--cyan-line); }
.test-featured { padding: 2.6rem 2.4rem; background: var(--card-bg-2); }
.test-featured .test-quote { font-size: 1.3rem; font-family: var(--display); font-weight: 500; line-height: 1.35; }
.test-quote { font-size: .95rem; color: var(--text); flex-grow: 1; }
.test-author { display: flex; align-items: center; gap: .8rem; font-size: .84rem; }
.test-author strong { display: block; color: var(--text); }
.test-author span { color: var(--text-mute); }
.test-avatar {
  width: 40px; height: 40px; border-radius: 50%; background: var(--cyan-soft); color: var(--cyan);
  display: grid; place-items: center; font-family: var(--display); font-weight: 700; font-size: .82rem; flex-shrink: 0;
}

/* =============================================================
   9. Contact
   ============================================================= */
.contact { position: relative; overflow: clip; padding-block: clamp(4.5rem, 10vw, 7.5rem); }
.contact-pulse { top: 5%; left: 62%; width: 32vw; height: 32vw; max-width: 440px; max-height: 440px; }
.contact-inner { position: relative; z-index: 1; display: grid; gap: 3rem; }
.contact-copy p { color: var(--text-dim); max-width: 42ch; margin-bottom: 1.5rem; }
.contact-copy .section-title { max-width: 15ch; }
.btn-whatsapp { margin-top: .25rem; }

.contact-form { position: relative; background: var(--card-bg); border: 1px solid var(--line); border-radius: 10px; padding: 1.75rem; display: flex; flex-direction: column; gap: 1.2rem; }
.field { position: relative; }
.field input, .field select, .field textarea {
  width: 100%; padding: 1.25rem 1rem .5rem; background: var(--card-bg-2); border: 1px solid var(--line);
  border-radius: 8px; color: var(--text); font: inherit; font-size: .92rem; transition: border-color .3s var(--ease-out); appearance: none;
}
.field select { color-scheme: dark; }
.field input:focus, .field select:focus { border-color: var(--cyan-line); }
.field label {
  position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); pointer-events: none;
  transition: all .25s var(--ease-out); color: var(--text-mute); font-size: .92rem; max-width: calc(100% - 2rem);
}
.field input:focus + label, .field input:not(:placeholder-shown) + label {
  top: .8rem; transform: none; font-size: .66rem; letter-spacing: .05em; text-transform: uppercase; color: var(--cyan);
}
.field .label-select { top: .65rem; transform: none; font-size: .66rem; letter-spacing: .05em; text-transform: uppercase; color: var(--cyan); white-space: normal; line-height: 1.3; }
.field select { padding-top: 1.9rem; }

.cta-submit { position: relative; justify-content: center; }
.cta-form-spinner { position: absolute; inset: 0; display: grid; place-items: center; opacity: 0; pointer-events: none; }
.contact-form.is-sending .cta-form-label { opacity: 0; }
.contact-form.is-sending .cta-form-spinner { opacity: 1; }
.cta-form-spinner::after { content: ""; width: 18px; height: 18px; border: 2px solid rgba(24,11,4,.35); border-top-color: #180b04; border-radius: 50%; animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.form-hint { font-size: .78rem; color: var(--text-mute); text-align: center; }
.contact-form.is-sent .field, .contact-form.is-sent .cta-submit, .contact-form.is-sent .form-hint { opacity: 0; pointer-events: none; }
.field, .cta-submit, .form-hint { transition: opacity .4s var(--ease-out); }
.cta-success { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; padding: 2rem; opacity: 0; pointer-events: none; transition: opacity .6s var(--ease-out) .15s; }
.cta-success.is-visible { opacity: 1; pointer-events: auto; }
.cta-success h3 { color: var(--cyan); margin-bottom: .6rem; font-size: 1.4rem; }
.cta-success p { color: var(--text-dim); max-width: 32ch; }

/* =============================================================
   10. Footer & floating WhatsApp
   ============================================================= */
.footer { padding-block: 3rem 2.5rem; border-top: 1px solid var(--line); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1.25rem; text-align: center; }
.footer-tagline { color: var(--text-mute); font-size: .88rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; font-size: .88rem; }
.footer-links a { color: var(--text-dim); transition: color .3s; }
.footer-links a:hover { color: var(--cyan); }
.footer-copy { color: var(--text-mute); font-size: .78rem; }

.whatsapp-float {
  position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 80;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--orange); color: #180b04;
  display: grid; place-items: center;
  box-shadow: 0 12px 30px rgba(232,73,15,.45);
  transition: transform .35s var(--ease-soft), box-shadow .35s var(--ease-soft);
}
.whatsapp-float:hover { transform: translateY(-4px) scale(1.05); box-shadow: 0 18px 40px rgba(232,73,15,.55); }
.whatsapp-float::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--orange);
  animation: waPulse 2.6s ease-out infinite; z-index: -1;
}
@media (prefers-reduced-motion: reduce) { .whatsapp-float::before { animation: none; } }
@keyframes waPulse { 0% { opacity: .55; transform: scale(1); } 100% { opacity: 0; transform: scale(1.7); } }

/* =============================================================
   11. Reveal on scroll
   ============================================================= */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft); }
.reveal.is-revealed { opacity: 1; transform: none; }
html:not(.js-ready) .reveal, html:not(.js-ready) .card { opacity: 1; transform: none; }

/* =============================================================
   12. Responsive
   ============================================================= */
@media (min-width: 540px) {
  .test-stack { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
}
@media (min-width: 720px) {
  .nav-links { display: flex; }
  .hero-visual { padding-top: 0; }
}
@media (min-width: 960px) {
  .hero-inner { grid-template-columns: 1fr .78fr; gap: 3rem; }
  .contact-inner { grid-template-columns: 1fr 1fr; align-items: start; }
  .testimonials-layout { grid-template-columns: 1fr 1fr; align-items: stretch; }
  .test-stack { grid-template-columns: 1fr; }
  .nav-burger { display: none; }
  .nav > .nav-inner > .btn { display: inline-flex; }
}
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .c1, .c2, .c3, .c4, .c5, .c6 { grid-column: 1 / 2; grid-row: auto; }
  .c2, .c3 { text-align: left; align-items: flex-start; }
  .c2 p.desc, .c3 p.desc { margin-left: 0; }
  .c1 { min-height: 260px; }
}
@media (max-width: 720px) {
  .hero-visual { justify-content: center; }
  .hero-frame { margin-left: 0; }
  .hero-accent-line { display: none; }
  .hero-tag { position: static; margin-top: 1.25rem; max-width: none; }
}