/* ==========================================================================
   The AIQ · theaiq.co
   Stylesheet v2.0 · June 2026 · ADC-influenced light theme
   ========================================================================== */

/* Reset */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { line-height: 1.55; }
img,svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }

/* ============================== Tokens ============================== */
:root {
  /* Surfaces */
  --bg: #FAF6EC;            /* dominant cream */
  --bg-2: #F2EDDF;          /* alt cream */
  --bg-wash: #EDE7D6;       /* hero subtle */
  --surface: #FFFFFF;       /* card white */
  --surface-2: #F7F2E5;     /* alt surface */

  /* Dark surfaces (for accent sections) */
  --ink: #0F1F2D;           /* near-black navy */
  --ink-2: #1A2D40;
  --ink-3: #2C4054;

  /* Accents */
  --green: #2D5F3F;         /* forest green - primary accent */
  --green-2: #3C7752;       /* hover */
  --green-soft: #E8F0EA;    /* very pale green wash */
  --green-line: #B6D0BE;    /* light border */
  --gold: #C9A961;          /* AIQ gold - sparing use for AIQ-specific only */

  /* Text */
  --text: #0F1F2D;
  --text-soft: #3A4A5C;
  --muted: #6B7785;
  --muted-on-dark: #B3BFCC;

  /* Lines */
  --line: rgba(15,31,45,0.10);
  --line-strong: rgba(15,31,45,0.18);
  --line-dark: rgba(255,255,255,0.10);

  --clay: #B5462A;

  /* Typography */
  --font-display: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Layout */
  --container: 1280px;
  --container-tight: 1080px;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 28px;

  --shadow-sm: 0 1px 2px rgba(15,31,45,0.04), 0 1px 3px rgba(15,31,45,0.05);
  --shadow-md: 0 4px 12px rgba(15,31,45,0.06), 0 2px 4px rgba(15,31,45,0.04);
  --shadow-lg: 0 12px 32px rgba(15,31,45,0.10), 0 4px 8px rgba(15,31,45,0.06);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 17px;
  font-feature-settings: "ss01" on, "cv11" on;
}

/* ============================== Layout ============================== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.container-tight { max-width: var(--container-tight); margin: 0 auto; padding: 0 32px; }
.section { padding: 112px 0; }
.section-tight { padding: 72px 0; }

.section-cream { background: var(--bg); color: var(--text); }
.section-cream-2 { background: var(--bg-2); color: var(--text); }
.section-green { background: var(--green-soft); color: var(--text); }
.section-white { background: var(--surface); color: var(--text); }
.section-dark { background: var(--ink); color: var(--bg); }
.section-darker { background: #07121C; color: var(--bg); }

/* ============================== Type ============================== */
.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--green);
  display: inline-block;
  margin-bottom: 28px;
}
.section-dark .kicker,
.section-darker .kicker { color: var(--bg); border-color: rgba(250,246,236,0.4); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variation-settings: "SOFT" 50, "WONK" 0, "opsz" 144;
}
h1 {
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.02;
}
h2 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 400;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
}
h3 {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 500;
  margin-bottom: 14px;
}
h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  font-family: var(--font-body);
  letter-spacing: -0.005em;
}

p { margin-bottom: 16px; max-width: 68ch; }

.lede {
  font-size: clamp(18px, 1.4vw, 22px);
  color: var(--text-soft);
  margin-bottom: 40px;
  max-width: 720px;
  line-height: 1.55;
}
.section-dark .lede,
.section-darker .lede { color: var(--muted-on-dark); }

.accent { color: var(--green); }
.accent-gold { color: var(--gold); }
.italic { font-style: italic; }
.muted { color: var(--muted); }
.section-dark .muted,
.section-darker .muted { color: var(--muted-on-dark); }

/* ============================== Header ============================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250,246,236,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 84px;
}
.logo-link { display: block; }
.logo-link svg, .logo-link img { height: 44px; width: auto; }
.nav { display: flex; gap: 36px; align-items: center; }
.nav a {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s;
}
.nav a:hover, .nav a.active { color: var(--green); }
.nav-cta {
  background: var(--green); color: var(--bg) !important;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 600 !important;
  font-size: 14px !important;
  transition: background 0.2s, transform 0.15s;
}
.nav-cta:hover { background: var(--green-2); color: var(--bg) !important; transform: translateY(-1px); }
.nav-toggle { display: none; color: var(--text); font-size: 24px; }

/* ============================== Buttons ============================== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 28px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
  border: 1.5px solid transparent;
  letter-spacing: -0.005em;
}
.btn-primary { background: var(--green); color: var(--bg); }
.btn-primary:hover { background: var(--green-2); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--text); }
.btn-ghost:hover { background: var(--text); color: var(--bg); }
.section-dark .btn-ghost, .section-darker .btn-ghost { color: var(--bg); border-color: var(--bg); }
.section-dark .btn-ghost:hover { background: var(--bg); color: var(--ink); }

.btn-group { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 36px; }

/* ============================== Hero ============================== */
.hero {
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero h1 { max-width: 14ch; margin-bottom: 32px; }
.hero h1 .accent { display: inline; }
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-visual svg {
  width: 100%;
  max-width: 520px;
  height: auto;
}

/* Trusted-by strip */
.trusted-strip {
  background: var(--bg-2);
  padding: 36px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.trusted-strip .trusted-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  margin-bottom: 20px;
}
.trusted-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  align-items: center;
}
.trusted-tags span {
  font-family: var(--font-display);
  font-size: clamp(18px, 1.6vw, 24px);
  font-weight: 500;
  color: var(--text-soft);
  letter-spacing: -0.01em;
}
.trusted-tags span + span::before {
  content: "·";
  margin-right: 32px;
  color: var(--green);
  opacity: 0.6;
}

/* ============================== Grid & Cards ============================== */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.section-dark .card, .section-darker .card {
  background: var(--ink-2);
  border-color: var(--line-dark);
  color: var(--bg);
}

.card .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--green);
  letter-spacing: 2px;
  margin-bottom: 20px;
  text-transform: uppercase;
  font-weight: 600;
}
.card .icon { font-size: 28px; margin-bottom: 16px; color: var(--green); }
.card h3 { margin-bottom: 12px; color: var(--text); }
.section-dark .card h3 { color: var(--bg); }
.card p { color: var(--muted); font-size: 15px; line-height: 1.6; flex-grow: 1; }
.section-dark .card p { color: var(--muted-on-dark); }
.card ul { list-style: none; padding: 0; margin-top: 16px; }
.card ul li {
  padding: 6px 0 6px 22px;
  position: relative;
  color: var(--muted);
  font-size: 15px;
}
.section-dark .card ul li { color: var(--muted-on-dark); }
.card ul li::before {
  content: "—"; position: absolute; left: 0; color: var(--green);
  font-weight: 700; top: 6px;
}
.card .meta {
  display: block;
  margin-top: auto;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
}

/* Industry / case cards with image area */
.card-image {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  transition: transform 0.25s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
}
.card-image:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-image .img-wrap {
  aspect-ratio: 4/3;
  background: var(--green-soft);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.card-image .img-wrap svg { width: 70%; height: auto; }
.card-image .img-wrap.dark { background: var(--ink); }
.card-image .body { padding: 28px 28px 32px; }
.card-image .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--green);
  background: var(--green-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
  text-transform: uppercase;
  font-weight: 600;
}
.card-image h3 { margin-bottom: 8px; }
.card-image p { color: var(--muted); font-size: 15px; }

/* ============================== Stats ============================== */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-top: 56px; }
.stat .num {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(64px, 8vw, 128px);
  color: var(--green);
  line-height: 1; margin-bottom: 16px;
  letter-spacing: -0.04em;
}
.section-dark .stat .num,
.section-darker .stat .num { color: var(--bg); }
.stat .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--text);
  border-bottom: 1.5px solid var(--green);
  padding-bottom: 10px;
  margin-bottom: 18px;
  display: inline-block;
  font-weight: 600;
}
.section-dark .stat .label,
.section-darker .stat .label { color: var(--bg); border-color: var(--bg); }
.stat .desc {
  color: var(--muted);
  font-size: 15px;
  max-width: 36ch;
  line-height: 1.55;
}
.section-dark .stat .desc,
.section-darker .stat .desc { color: var(--muted-on-dark); }

/* ============================== AIQ score visual ============================== */
.aiq-visual {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 56px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.section-dark .aiq-visual,
.section-darker .aiq-visual {
  background: var(--ink-2);
  border-color: var(--line-dark);
}
.aiq-bands { display: grid; gap: 14px; margin-top: 28px; }
.aiq-band {
  display: grid; grid-template-columns: 110px 1fr auto; gap: 28px;
  align-items: center;
  padding: 20px 24px;
  background: var(--bg);
  border-left: 4px solid;
  border-radius: var(--radius-sm);
}
.section-dark .aiq-band,
.section-darker .aiq-band { background: rgba(255,255,255,0.04); }
.aiq-band .range {
  font-family: var(--font-mono); font-size: 14px;
  color: var(--green); font-weight: 600;
}
.aiq-band h4 { margin: 0; color: var(--text); font-size: 18px; }
.section-dark .aiq-band h4 { color: var(--bg); }
.aiq-band p { margin: 4px 0 0; color: var(--muted); font-size: 14px; max-width: none; }
.section-dark .aiq-band p { color: var(--muted-on-dark); }
.aiq-band.unaware { border-color: var(--clay); }
.aiq-band.aware { border-color: #D97737; }
.aiq-band.capable { border-color: var(--gold); }
.aiq-band.compounding { border-color: var(--green); }

/* ============================== Pull quotes ============================== */
.pull {
  background: var(--surface);
  border-left: 4px solid var(--green);
  padding: 40px 48px;
  margin: 32px 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.section-dark .pull, .section-darker .pull {
  background: var(--ink-2);
  border-color: var(--green);
}
.pull p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(22px, 2.2vw, 32px);
  font-weight: 400;
  color: var(--text);
  line-height: 1.35;
  margin: 0;
  letter-spacing: -0.015em;
}
.section-dark .pull p,
.section-darker .pull p { color: var(--bg); }
.pull cite {
  display: block;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  font-style: normal;
  font-weight: 600;
}

/* ============================== Testimonials ============================== */
.testimonial-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.testimonial {
  background: var(--surface);
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  position: relative;
}
.testimonial::before {
  content: "“";
  position: absolute;
  top: 16px;
  left: 32px;
  font-family: var(--font-display);
  font-size: 80px;
  color: var(--green);
  opacity: 0.18;
  line-height: 1;
}
.testimonial p {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.4;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
  font-weight: 400;
}
.testimonial .author {
  display: flex; gap: 14px; align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.testimonial .author .avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
}
.testimonial .author .name {
  font-weight: 600;
  color: var(--text);
  font-size: 15px;
}
.testimonial .author .role {
  color: var(--muted);
  font-size: 13px;
}

/* ============================== Tables ============================== */
.tbl { width: 100%; border-collapse: collapse; margin-top: 32px; }
.tbl th, .tbl td {
  text-align: left;
  padding: 18px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.tbl th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 700;
}
.section-dark .tbl th,
.section-darker .tbl th { color: var(--bg); }
.section-dark .tbl th,
.section-dark .tbl td,
.section-darker .tbl th,
.section-darker .tbl td { border-color: var(--line-dark); }

/* ============================== Forms ============================== */
.form { display: grid; gap: 22px; max-width: 580px; margin-top: 32px; }
.form-row { display: grid; gap: 8px; }
.form-row label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.section-dark .form-row label,
.section-darker .form-row label { color: var(--bg); }
.form-row input,
.form-row select,
.form-row textarea {
  background: var(--surface);
  border: 1.5px solid var(--line);
  color: var(--text);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
}
.section-dark .form-row input,
.section-dark .form-row select,
.section-dark .form-row textarea,
.section-darker .form-row input,
.section-darker .form-row select,
.section-darker .form-row textarea {
  background: var(--ink-2); color: var(--bg); border-color: var(--line-dark);
}
.form-row textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 8px; }
.section-dark .form-note,
.section-darker .form-note { color: var(--muted-on-dark); }

/* ============================== X-list ============================== */
.xlist { list-style: none; padding: 0; margin-top: 24px; }
.xlist li {
  padding: 18px 0 18px 36px;
  position: relative;
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(18px, 1.6vw, 22px);
  border-bottom: 1px solid var(--line);
  color: var(--text);
  line-height: 1.4;
}
.section-dark .xlist li,
.section-darker .xlist li { border-color: var(--line-dark); color: var(--bg); }
.xlist li::before {
  content: "✕"; position: absolute; left: 0; top: 18px;
  color: var(--clay); font-weight: 700; font-style: normal;
  font-family: var(--font-body);
}

/* ============================== Newsletter Block ============================== */
.newsletter-block {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: 80px 64px;
  color: var(--bg);
  position: relative;
  overflow: hidden;
}
.newsletter-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 30%, rgba(45,95,63,0.30) 0%, transparent 50%),
    radial-gradient(circle at 15% 75%, rgba(201,169,97,0.10) 0%, transparent 50%);
  pointer-events: none;
}
.newsletter-block > * { position: relative; }
.newsletter-block h2 { color: var(--bg); margin-bottom: 16px; }
.newsletter-block p { color: var(--muted-on-dark); max-width: 540px; margin-bottom: 28px; }
.newsletter-block form {
  display: flex; gap: 12px; max-width: 520px; flex-wrap: wrap;
}
.newsletter-block input[type="email"] {
  flex: 1; min-width: 250px;
  background: rgba(255,255,255,0.06);
  border: 1.5px solid rgba(255,255,255,0.22);
  color: var(--bg);
  padding: 16px 20px;
  border-radius: 999px;
  font: inherit;
  font-size: 15px;
}
.newsletter-block input[type="email"]::placeholder { color: rgba(250,246,236,0.55); }
.newsletter-block input[type="email"]:focus { outline: none; border-color: var(--green); }
.newsletter-block .btn-primary { background: var(--bg); color: var(--ink); }
.newsletter-block .btn-primary:hover { background: white; transform: translateY(-1px); }
.newsletter-block .form-success { color: var(--bg); margin-top: 14px; font-size: 14px; }

/* ============================== Footer ============================== */
.site-footer {
  background: var(--ink);
  padding: 96px 0 40px;
  color: var(--bg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 56px;
  margin-bottom: 56px;
}
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--bg);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-grid ul { list-style: none; }
.footer-grid ul li { padding: 7px 0; }
.footer-grid ul a { color: var(--muted-on-dark); font-size: 15px; transition: color 0.15s; }
.footer-grid ul a:hover { color: var(--bg); }
.footer-tag { color: var(--muted-on-dark); font-size: 14px; max-width: 36ch; margin-top: 20px; line-height: 1.6; }
.footer-tag strong { color: var(--bg); font-weight: 600; }
.footer-bar {
  border-top: 1px solid var(--line-dark);
  padding-top: 28px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 1.5px; color: var(--muted-on-dark);
  text-transform: uppercase;
}
.footer-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-form input[type="email"] {
  background: rgba(255,255,255,0.06);
  border: 1.5px solid rgba(255,255,255,0.20);
  color: var(--bg);
  padding: 12px 16px;
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
}
.footer-form input[type="email"]::placeholder { color: rgba(250,246,236,0.5); }
.footer-form input[type="email"]:focus { outline: none; border-color: var(--green); }
.footer-form .btn { padding: 12px 18px; font-size: 13px; }
.footer-form .btn-primary { background: var(--green); color: var(--bg); }
.footer-form .btn-primary:hover { background: var(--green-2); }

/* ============================== Page header (inner pages) ============================== */
.page-header {
  padding: 112px 0 80px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.page-header h1 { font-size: clamp(48px, 6vw, 84px); margin-bottom: 24px; }

/* ============================== Insights post list ============================== */
.post { padding: 36px 0; border-bottom: 1px solid var(--line); }
.post .date {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--green); margin-bottom: 14px; font-weight: 600;
}
.post h3 {
  font-size: clamp(24px, 2.6vw, 32px);
  margin-bottom: 14px;
}
.post h3 a { color: var(--text); }
.post h3 a:hover { color: var(--green); }
.post p { color: var(--muted); font-size: 16px; }

/* ============================== Responsive ============================== */
@media (max-width: 1000px) {
  .grid-3, .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-visual { order: -1; }
  .hero h1 { margin-left: auto; margin-right: auto; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .newsletter-block { padding: 56px 32px; }
}
@media (max-width: 700px) {
  .section { padding: 72px 0; }
  .container, .container-tight { padding: 0 22px; }
  .nav { display: none; position: absolute; top: 84px; left: 0; right: 0;
    background: var(--bg); flex-direction: column; padding: 24px 32px; gap: 18px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bar { flex-direction: column; gap: 12px; text-align: center; }
  .aiq-band { grid-template-columns: 1fr; gap: 8px; }
  .aiq-visual { padding: 32px 24px; }
  .hero { padding: 56px 0 72px; }
  .trusted-tags { gap: 16px; }
  .trusted-tags span + span::before { margin-right: 16px; }
}

/* ============================== Utilities ============================== */
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mt-6 { margin-top: 48px; }
.mt-8 { margin-top: 64px; }
.mb-0 { margin-bottom: 0; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }