:root {
  --bg: #0f172a;
  --bg-deep: #070d1c;
  --card: rgba(30, 41, 59, .74);
  --card-strong: rgba(30, 41, 59, .94);
  --text: #f8fafc;
  --muted: #94a3b8;
  --line: rgba(255,255,255,.09);
  --primary: #6366f1;
  --primary-light: #818cf8;
  --secondary: #0ea5e9;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 12%, rgba(99,102,241,.17), transparent 32%),
    radial-gradient(circle at 90% 55%, rgba(14,165,233,.12), transparent 35%),
    var(--bg);
  font-family: Inter, "DM Sans", sans-serif;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 42px 42px;
  z-index: -1;
}
a { color: inherit; }
img, video { max-width: 100%; height: auto; }
.hero-copy, .detail-hero > *, .section-heading > *, .feedback-section > * { min-width: 0; }
.ambient { position: fixed; border-radius: 50%; filter: blur(120px); pointer-events: none; z-index: -1; opacity: .16; }
.ambient-one { width: 460px; height: 460px; background: var(--primary); top: -220px; right: -100px; }
.ambient-two { width: 400px; height: 400px; background: var(--secondary); left: -220px; top: 58%; }

.site-header, main, .site-footer { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.site-header {
  height: 88px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; width: fit-content; }
.brand img { width: 39px; height: 32px; object-fit: contain; }
.brand span { font-family: Manrope, sans-serif; font-weight: 900; letter-spacing: -.6px; font-size: 1.2rem; text-transform: uppercase; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: .9rem; font-weight: 700; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.header-cta {
  justify-self: end;
  text-decoration: none;
  font-weight: 800;
  font-size: .86rem;
  padding: 12px 18px;
  border: 1px solid rgba(129,140,248,.3);
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 8px 24px rgba(99,102,241,.22);
}
.header-cta i { margin-left: 7px; }

.hero { min-height: 680px; display: grid; grid-template-columns: 1.14fr .86fr; align-items: center; gap: 70px; padding: 75px 0; }
.kicker, .section-index {
  font-family: Manrope, sans-serif;
  font-weight: 800;
  color: #c7d2fe;
  letter-spacing: .1em;
  font-size: .72rem;
}
.kicker {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  padding: 9px 13px;
  border: 1px solid rgba(129,140,248,.26);
  background: rgba(99,102,241,.1);
  border-radius: 999px;
}
.hero h1, .section-heading h2, .approach-copy h2 { font-family: Manrope, sans-serif; letter-spacing: -.05em; }
.hero h1 { font-size: clamp(3.3rem, 6.7vw, 6.1rem); line-height: 1.01; margin: 28px 0 26px; max-width: 850px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #818cf8, #38bdf8);
  -webkit-background-clip: text;
  color: transparent;
}
.hero-copy > p { color: var(--muted); line-height: 1.7; font-size: 1.08rem; max-width: 640px; }
.hero-actions { margin-top: 34px; display: flex; align-items: center; gap: 25px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  text-decoration: none;
  border-radius: 12px;
  padding: 15px 22px;
  font-weight: 800;
  border: 0;
  cursor: pointer;
  font: inherit;
}
.button-primary { background: #fff; color: var(--bg); box-shadow: 0 12px 30px rgba(0,0,0,.25); transition: transform .2s; }
.button-primary:hover { transform: translateY(-2px); }
.button-secondary { border: 1px solid var(--line); background: rgba(255,255,255,.06); color: #fff; }
.availability { color: var(--muted); font-size: .9rem; display: flex; align-items: center; gap: 8px; }
.availability i, .status i { width: 7px; height: 7px; background: var(--success); border-radius: 50%; box-shadow: 0 0 0 4px rgba(34,197,94,.12); }

.hero-mark { position: relative; width: min(420px, 36vw); aspect-ratio: 1; margin-left: auto; display: grid; place-items: center; }
.mark-orbit { position: absolute; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }
.orbit-one { inset: 8%; }
.orbit-two { inset: 24%; border-style: dashed; animation: spin 24s linear infinite; }
.mark-core {
  width: 42%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 28%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font: 800 clamp(2rem, 4vw, 3.6rem)/1 Manrope;
  transform: rotate(-6deg);
  box-shadow: 18px 22px 60px rgba(99,102,241,.3);
}
.floating-tag {
  position: absolute;
  color: #dbeafe;
  background: rgba(15,23,42,.88);
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px rgba(0,0,0,.25);
  border-radius: 999px;
  padding: 9px 14px;
  font: 700 .75rem Manrope;
  backdrop-filter: blur(12px);
}
.tag-one { left: 0; top: 20%; }
.tag-two { right: -5%; top: 38%; }
.tag-three { left: 12%; bottom: 10%; }
@keyframes spin { to { transform: rotate(360deg); } }

.project-section { padding: 95px 0 105px; border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; margin-bottom: 42px; }
.section-heading h2 { font-size: clamp(2.5rem, 5vw, 4.4rem); margin: 12px 0 0; }
.section-heading > p { max-width: 440px; justify-self: end; color: var(--muted); line-height: 1.65; margin: 0; }
.featured-projects { display: grid; grid-template-columns: 1.08fr .92fr; gap: 22px; }
.project-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  backdrop-filter: blur(12px);
}
.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 0%, rgba(99,102,241,.14), transparent 35%);
  pointer-events: none;
}
.project-card-large { min-height: 510px; padding: 30px; display: flex; flex-direction: column; transition: transform .25s, border-color .25s, box-shadow .25s; }
.project-card-large:hover { transform: translateY(-5px); border-color: rgba(129,140,248,.4); box-shadow: 0 24px 60px rgba(0,0,0,.28); background: var(--card-strong); }
.overlink-card { background: linear-gradient(145deg, rgba(99,102,241,.18), rgba(30,41,59,.8) 58%); }
.project-card-link { color: inherit; text-decoration: none; }
.project-card-link:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 4px; }
.ig-card { background: linear-gradient(145deg, rgba(14,165,233,.16), rgba(30,41,59,.8) 58%); }
.project-topline, .compact-title, .project-footer { display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 1; }
.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 800;
  color: #dcfce7;
  background: rgba(34,197,94,.08);
  border: 1px solid rgba(34,197,94,.2);
}
.status-paused { color: #fde68a; background: rgba(245,158,11,.08); border-color: rgba(245,158,11,.22); }
.status-paused i { background: var(--warning); box-shadow: 0 0 0 4px rgba(245,158,11,.1); }
.project-number { color: rgba(255,255,255,.32); font: 700 .8rem Manrope; }
.project-icon {
  width: 90px;
  height: 90px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  font-size: 2.4rem;
  margin: 42px 0 34px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 15px 35px rgba(99,102,241,.28);
  position: relative;
  z-index: 1;
}
.ig-card .project-icon { background: linear-gradient(135deg, #7c3aed, #ec4899, #f59e0b); }
.project-content { max-width: 470px; position: relative; z-index: 1; }
.project-type { color: #93c5fd; letter-spacing: .12em; font: 700 .68rem Manrope; margin: 0 0 10px; }
.project-content h3, .compact-copy h3 { font: 800 2.3rem/1.1 Manrope; letter-spacing: -.04em; margin: 0 0 14px; }
.project-content > p:last-child, .compact-copy > p:last-child { color: var(--muted); line-height: 1.6; margin: 0; }
.project-footer { margin-top: auto; padding-top: 30px; }
.project-tags { display: flex; gap: 7px; flex-wrap: wrap; }
.project-tags span { background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.06); padding: 7px 10px; border-radius: 999px; font-size: .72rem; color: #cbd5e1; }
.round-link { width: 48px; height: 48px; display: grid; place-items: center; background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; border-radius: 50%; text-decoration: none; transition: transform .2s; }
.round-link:hover { transform: rotate(8deg) scale(1.05); }

.secondary-projects { display: grid; grid-template-columns: 1fr; gap: 22px; margin-top: 22px; }
.project-card-compact { min-height: 260px; padding: 26px; display: grid; grid-template-columns: auto 1fr; grid-template-rows: 1fr auto; gap: 0 22px; }
.compact-icon {
  grid-row: 1 / 3;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 17px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.2rem;
  position: relative;
  z-index: 1;
}
.cs2-card .compact-icon { background: linear-gradient(135deg, #0284c7, #22d3ee); }
.compact-copy { position: relative; z-index: 1; }
.compact-title { margin-bottom: 22px; }
.compact-copy h3 { font-size: 1.55rem; }
.text-link { grid-column: 2; align-self: end; margin-top: 20px; width: fit-content; font-weight: 800; font-size: .88rem; text-decoration: none; position: relative; z-index: 1; color: #c7d2fe; }
.text-link i { margin-left: 7px; transition: transform .2s; }
.text-link:hover i { transform: translateX(4px); }
.muted { color: #64748b; cursor: default; }
.approach-section { border-top: 1px solid var(--line); display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; padding: 105px 0; }
.approach-copy h2 { font-size: clamp(3rem, 5vw, 4.7rem); line-height: 1; margin: 15px 0 0; }
.principles > div { display: grid; grid-template-columns: 46px 1fr; padding: 26px 0; border-bottom: 1px solid var(--line); }
.principles > div:first-child { padding-top: 0; }
.principles span { color: var(--primary-light); font: 700 .72rem Manrope; }
.principles h3 { font: 700 1.15rem Manrope; margin: 0 0 8px; }
.principles p { grid-column: 2; margin: 0; color: var(--muted); line-height: 1.55; }

.trust-section {
  padding: 105px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 80px;
  align-items: start;
}
.trust-heading { min-width: 0; }
.trust-heading h2 {
  margin: 15px 0 24px;
  font: 800 clamp(3rem, 5vw, 4.7rem)/1 Manrope;
  letter-spacing: -.055em;
}
.trust-heading h2 em {
  font-style: normal;
  background: linear-gradient(90deg, #818cf8, #38bdf8);
  -webkit-background-clip: text;
  color: transparent;
}
.trust-heading > p { max-width: 440px; margin: 0; color: var(--muted); line-height: 1.7; }
.trust-cards { display: grid; gap: 18px; min-width: 0; }
.trust-card {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 22px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(99,102,241,.11), rgba(30,41,59,.65));
  box-shadow: 0 20px 55px rgba(0,0,0,.16);
  backdrop-filter: blur(10px);
}
.trust-card:nth-child(2) { background: linear-gradient(135deg, rgba(14,165,233,.1), rgba(30,41,59,.65)); }
.trust-icon {
  position: relative;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border-radius: 19px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-size: 1.55rem;
}
.trust-slash {
  position: absolute;
  width: 44px;
  height: 3px;
  border-radius: 2px;
  background: #fff;
  transform: rotate(-45deg);
  box-shadow: 0 0 0 3px rgba(99,102,241,.45);
}
.trust-number { color: #93c5fd; font: 700 .68rem Manrope; letter-spacing: .12em; }
.trust-card h3 { margin: 7px 0 9px; font: 800 1.35rem Manrope; }
.trust-card p { margin: 0; color: var(--muted); line-height: 1.6; }

.site-footer { min-height: 120px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; color: var(--muted); font-size: .84rem; }
.site-footer p:nth-child(2) { text-align: center; }
.site-footer p:last-child { text-align: right; }

.feedback-section {
  border-top: 1px solid var(--line);
  padding: 105px 0;
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 80px;
  align-items: start;
}
.feedback-intro h2 {
  font: 800 clamp(3rem, 5vw, 4.7rem)/1 Manrope;
  letter-spacing: -.055em;
  margin: 15px 0 25px;
}
.feedback-intro > p { color: var(--muted); line-height: 1.7; max-width: 460px; }
.contact-lines { display: grid; gap: 12px; margin: 32px 0 22px; }
.contact-lines a {
  display: flex;
  align-items: center;
  gap: 13px;
  color: #e2e8f0;
  text-decoration: none;
  width: fit-content;
  font-weight: 700;
}
.contact-lines a > i {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: #c7d2fe;
  background: rgba(99,102,241,.11);
  border: 1px solid rgba(129,140,248,.2);
}
.contact-lines span { display: grid; }
.contact-lines small { color: var(--muted); font-size: .7rem; font-weight: 600; margin-bottom: 2px; }
.instagram-button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #fff;
  text-decoration: none;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 800;
  font-size: .85rem;
  background: linear-gradient(135deg, #7c3aed, #ec4899, #f59e0b);
  box-shadow: 0 12px 28px rgba(236,72,153,.17);
}
.feedback-form {
  padding: 30px;
  border-radius: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 25px 70px rgba(0,0,0,.2);
  backdrop-filter: blur(12px);
}
.feedback-form label {
  display: grid;
  gap: 8px;
  color: #dbeafe;
  font-size: .84rem;
  font-weight: 800;
  margin-bottom: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.feedback-form input,
.feedback-form select,
.feedback-form textarea {
  width: 100%;
  color: #f8fafc;
  background: rgba(2,6,23,.48);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 13px 14px;
  outline: none;
  font: 500 .92rem "DM Sans", sans-serif;
  transition: border-color .2s, box-shadow .2s;
}
.feedback-form input::placeholder,
.feedback-form textarea::placeholder { color: #64748b; }
.feedback-form select option { color: #f8fafc; background: #0f172a; }
.feedback-form textarea { resize: vertical; min-height: 145px; }
.feedback-form input:focus,
.feedback-form select:focus,
.feedback-form textarea:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(99,102,241,.14);
}
.feedback-submit {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 10px 28px rgba(99,102,241,.22);
}
.form-note { color: var(--muted); font-size: .76rem; line-height: 1.5; margin: 13px 0 0; }
.form-status { padding: 13px 15px; border-radius: 12px; margin-bottom: 18px; font-size: .86rem; line-height: 1.5; }
.form-status.success { color: #bbf7d0; background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.22); }
.form-status.error { color: #fecaca; background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.22); }
.honeypot { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.detail-page .site-header { margin-bottom: 0; }
.back-link { text-decoration: none; color: var(--muted); font-weight: 700; }
.back-link:hover { color: #fff; }
.detail-hero { min-height: 590px; padding: 90px 0 70px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 80px; align-items: center; }
.detail-hero h1 { font: 800 clamp(3.8rem, 8vw, 7.2rem)/.92 Manrope; letter-spacing: -.07em; margin: 20px 0 26px; background: linear-gradient(90deg, #fff, #a5b4fc); -webkit-background-clip: text; color: transparent; }
.detail-lead { font-size: 1.1rem; line-height: 1.7; color: var(--muted); max-width: 620px; }
.detail-actions { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.download-area { margin-top: 32px; scroll-margin-top: 30px; }
.download-label {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.download-area .detail-actions { margin-top: 0; align-items: flex-start; }
.platform-downloads { position: relative; }
.platform-button { min-width: 194px; min-height: 62px; justify-content: flex-start; padding: 12px 18px; }
.platform-button > i:first-child { width: 25px; font-size: 1.35rem; text-align: center; }
.platform-button span { display: grid; gap: 2px; line-height: 1.1; text-align: left; }
.platform-button small { color: inherit; opacity: .68; font-size: .65rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.download-dropdown { position: relative; z-index: 10; }
.download-dropdown summary { list-style: none; cursor: pointer; user-select: none; }
.download-dropdown summary::-webkit-details-marker { display: none; }
.dropdown-arrow { margin-left: auto; font-size: .72rem !important; transition: transform .2s ease; }
.download-dropdown[open] .dropdown-arrow { transform: rotate(180deg); }
.download-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  width: 310px;
  padding: 8px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  background: rgba(8,14,32,.98);
  box-shadow: 0 22px 55px rgba(0,0,0,.42);
  backdrop-filter: blur(18px);
  animation: download-menu-in .18s ease both;
}
.download-menu a {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 13px 12px;
  border-radius: 11px;
  color: #e2e8f0;
  text-decoration: none;
  transition: background .18s ease;
}
.download-menu a:hover { background: rgba(99,102,241,.14); }
.download-menu a + a { border-top: 1px solid rgba(255,255,255,.07); }
.download-menu a > i:first-child { color: var(--primary-light); font-size: 1.15rem; text-align: center; }
.download-menu a > i:last-child { color: #64748b; font-size: .8rem; }
.download-menu span { display: grid; gap: 3px; }
.download-menu b { font-size: .86rem; }
.download-menu small { color: var(--muted); font-size: .7rem; }
.portable-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 13px;
  color: #a5b4fc;
  font-size: .78rem;
  font-weight: 700;
  text-decoration: none;
}
.portable-link:hover { color: #fff; }
@keyframes download-menu-in {
  from { opacity: 0; transform: translateY(-7px); }
  to { opacity: 1; transform: translateY(0); }
}
.detail-visual {
  min-height: 420px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(99,102,241,.12), rgba(30,41,59,.62));
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,.28);
}
.detail-visual::before { content: ""; position: absolute; width: 280px; height: 280px; border: 1px dashed rgba(255,255,255,.2); border-radius: 50%; animation: spin 25s linear infinite; }
.detail-symbol { width: 150px; height: 150px; display: grid; place-items: center; border-radius: 36px; color: #fff; background: linear-gradient(135deg, var(--primary), var(--secondary)); font-size: 4rem; box-shadow: 0 25px 60px rgba(99,102,241,.35); z-index: 1; }
.ig-detail .detail-symbol { background: linear-gradient(135deg, #7c3aed, #ec4899, #f59e0b); }
.cs2-detail .detail-symbol { background: linear-gradient(135deg, #0284c7, #22d3ee); }
.detail-section { padding: 90px 0; border-top: 1px solid var(--line); }
.detail-section .section-heading { margin-bottom: 38px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-item { padding: 28px; border-radius: 20px; border: 1px solid var(--line); background: var(--card); backdrop-filter: blur(10px); }
.feature-item i { color: var(--primary-light); font-size: 1.35rem; }
.ig-detail .feature-item i { color: #f472b6; }
.cs2-detail .feature-item i { color: #22d3ee; }
.feature-item h3 { font: 700 1.08rem Manrope; margin: 25px 0 9px; }
.feature-item p { color: var(--muted); line-height: 1.55; font-size: .92rem; margin: 0; }
.preview-frame { width: min(100%, 780px); margin-inline: auto; border: 1px solid var(--line); background: rgba(30,41,59,.68); border-radius: 25px; padding: 12px; box-shadow: 0 30px 80px rgba(0,0,0,.28); }
.preview-frame img { width: 100%; display: block; border-radius: 16px; border: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step { padding: 28px; border-top: 2px solid var(--primary-light); background: rgba(30,41,59,.34); border-radius: 0 0 16px 16px; }
.step::before { counter-increment: step; content: "0" counter(step); display: block; color: var(--primary-light); font: 700 .75rem Manrope; margin-bottom: 24px; }
.step h3 { font: 700 1.05rem Manrope; }
.step p { color: var(--muted); line-height: 1.55; font-size: .92rem; }
.notice { padding: 18px 20px; border-radius: 16px; margin-top: 30px; background: rgba(245,158,11,.08); border: 1px solid rgba(245,158,11,.24); color: #fde68a; line-height: 1.55; font-size: .9rem; }

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  .nav-links { display: none; }
  .hero, .detail-hero { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
  .hero-mark { width: min(420px, 75vw); margin: 20px auto 0; }
  .featured-projects, .secondary-projects, .approach-section, .section-heading, .feedback-section, .trust-section { grid-template-columns: 1fr; }
  .feedback-section { gap: 48px; }
  .trust-section { gap: 48px; }
  .section-heading > p { justify-self: start; margin-top: 18px; }
  .feature-grid, .steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .site-header, main, .site-footer { width: min(100% - 28px, 1180px); }
  .site-header { height: 76px; }
  .header-cta { padding: 10px 13px; font-size: .78rem; }
  .hero { min-height: auto; padding: 70px 0 80px; }
  .hero h1 { font-size: clamp(2.35rem, 11.8vw, 3.2rem); overflow-wrap: normal; word-break: normal; }
  .hero-mark { display: none; }
  .project-section, .approach-section, .detail-section { padding: 72px 0; }
  .project-card-large { min-height: 470px; padding: 22px; }
  .secondary-projects, .feature-grid, .steps { grid-template-columns: 1fr; }
  .project-card-compact { grid-template-columns: 1fr; }
  .compact-icon { grid-row: auto; margin-bottom: 20px; }
  .text-link { grid-column: 1; }
  .approach-section { gap: 50px; }
  .detail-hero { padding: 65px 0; gap: 40px; }
  .detail-hero h1 { font-size: 4rem; }
  .detail-visual { min-height: 300px; }
  .platform-downloads { width: 100%; }
  .platform-button, .download-dropdown { width: 100%; }
  .download-menu { width: 100%; }
  .site-footer { grid-template-columns: 1fr; padding: 32px 0; gap: 10px; }
  .site-footer p, .site-footer p:nth-child(2), .site-footer p:last-child { text-align: left; margin: 0; }
  .feedback-section { padding: 72px 0; }
  .trust-section { padding: 72px 0; }
  .trust-card { grid-template-columns: 1fr; gap: 18px; padding: 23px; }
  .trust-heading h2 { font-size: clamp(2.65rem, 12vw, 3.45rem); }
  .feedback-form { padding: 22px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}