/* ============================================================
   NEURO SUPPORT — Style System
   neurosupport.co.nz
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* Palette */
  --orange:           #E8752A;
  --orange-hover:     #D4681F;
  --orange-glow:      rgba(232, 117, 42, 0.15);
  --dark:             #111113;
  --dark-surface:     #1A1A1E;
  --dark-border:      rgba(255,255,255,0.08);
  --white:            #FFFFFF;
  --light:            #F5F5F3;
  --light-alt:        #EEEEE9;
  --border:           #E0DDD8;
  --text-dark:        #111113;
  --text-body:        #3A3A3C;
  --text-muted:       #7A7A7E;
  --text-muted-dark:  rgba(255,255,255,0.55);

  /* Typography */
  --font-heading: 'Outfit', system-ui, sans-serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --section-pad:   100px;
  --section-pad-m: 64px;
  --container:     1120px;

  /* Shape */
  --radius:    12px;
  --radius-lg: 20px;
  --radius-sm: 8px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--white);
}

img { max-width: 100%; display: block; }
a { color: var(--orange); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--orange-hover); }
strong { font-weight: 600; color: var(--text-dark); }
em { font-style: italic; }
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--text-dark); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.02em; }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; }
h4 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
p { margin-bottom: 0; }
p + p { margin-top: 16px; }
ul { list-style: none; }

/* ── Container ─────────────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--orange);
  color: var(--dark);
  border-color: var(--orange);
}
.btn-primary:hover {
  background: var(--dark);
  border-color: var(--dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--text-dark);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--text-dark);
  color: var(--text-dark);
}

.btn-outline--light {
  color: var(--white);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline--light:hover {
  border-color: var(--white);
  color: var(--white);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.88rem;
}

/* ── Eyebrow ───────────────────────────────────────────────── */
.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 12px;
}
.eyebrow--light { color: var(--orange); }

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(17, 17, 19, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--dark-border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-logo img { height: 28px; width: auto; }
.nav-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.nav-logo-text span { color: var(--orange); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links li a {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
}
.nav-links li a:hover,
.nav-links li a.active {
  color: var(--white);
  background: rgba(255,255,255,0.06);
}
.nav-cta { margin-left: 8px; }
.nav-cta a.btn { padding: 8px 18px; font-size: 0.84rem; }
.nav-cta a.btn.btn-primary { color: var(--dark); }
.nav-cta a.btn.btn-primary:hover { color: var(--white); background: var(--dark); border-color: var(--dark); }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  background: var(--dark);
  padding: 140px 0 var(--section-pad);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
}
.hero-content { max-width: 640px; }
.hero-content h1 { color: var(--white); margin-bottom: 20px; }
.hero-content h1 em { color: var(--orange); font-style: normal; }
.hero-content p { color: rgba(255,255,255,0.7); font-size: 1.1rem; line-height: 1.7; }
.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.hero-badges {
  display: flex;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
}
.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--orange);
  border-radius: 50%;
  flex-shrink: 0;
}
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-logo-img {
  max-width: 340px;
  width: 100%;
  opacity: 0.12;
  animation: heroPulse 6s ease-in-out infinite;
}
@keyframes heroPulse {
  0%, 100% { opacity: 0.12; transform: scale(1); }
  50% { opacity: 0.18; transform: scale(1.03); }
}

/* ── Sections ──────────────────────────────────────────────── */
.section {
  padding: var(--section-pad) 0;
}
.section--light {
  background: var(--light);
}
.section--dark {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
}
.section--dark h2,
.section--dark h3 {
  color: var(--white);
}

.section-header {
  margin-bottom: 48px;
  max-width: 640px;
}
.section-header.centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-header p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ── Page Header (inner pages) ─────────────────────────────── */
.page-header {
  background: var(--dark);
  padding: 120px 0 56px;
}
.page-header h1 { color: var(--white); margin-bottom: 12px; }
.page-header p { color: rgba(255,255,255,0.6); font-size: 1.1rem; max-width: 600px; }
.page-header a { color: var(--orange); }

.breadcrumb {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.35);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: rgba(255,255,255,0.35);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--orange); }

/* ── Principles Strip (homepage dark band) ─────────────────── */
.principles-strip {
  background: var(--dark);
  padding: var(--section-pad) 0;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.principle-card {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s;
}
.principle-card:hover {
  border-color: rgba(232, 117, 42, 0.3);
  transform: translateY(-2px);
}
.principle-num {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.principle-card h3 {
  color: var(--white);
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.principle-card p {
  color: var(--text-muted-dark);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ── Features Grid ─────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.3s, box-shadow 0.3s;
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}
.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}
.feature-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}
.feature-card p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* Dark section override */
.section--dark .feature-card {
  background: var(--dark-surface);
  border-color: var(--dark-border);
}
.section--dark .feature-card h3 { color: var(--white); }
.section--dark .feature-card p { color: var(--text-muted-dark); }

/* ── Callout ───────────────────────────────────────────────── */
.callout {
  border-left: 3px solid var(--orange);
  padding: 20px 24px;
  margin: 32px 0;
  background: var(--orange-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.callout p {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-dark);
  line-height: 1.5;
  margin: 0;
}

/* ── Audience List ─────────────────────────────────────────── */
.audience-list {
  max-width: 700px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.audience-list li {
  position: relative;
  padding-left: 28px;
  font-size: 1.02rem;
  line-height: 1.6;
}
.audience-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 50%;
}

/* ── Agent Teaser (homepage) ───────────────────────────────── */
.agent-teaser {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 56px;
}
.agent-teaser h2 { color: var(--white); margin-bottom: 12px; }
.agent-teaser p { color: rgba(255,255,255,0.65); font-size: 1.02rem; }
.agent-teaser-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.agent-teaser-visual img { opacity: 0.15; }

/* ── Profile Section ───────────────────────────────────────── */
.profile-section {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}
.profile-photo {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.profile-content h2 { margin-bottom: 16px; }
.profile-content p { margin-top: 12px; }

/* ── Steps Grid ────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  counter-reset: step;
}
.step-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  counter-increment: step;
  position: relative;
}
.step-num::before {
  content: counter(step);
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--orange);
  opacity: 0.2;
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}
.step-card h3 { margin-bottom: 8px; }
.step-card p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* ── CTA Banner ────────────────────────────────────────────── */
.cta-banner {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
}
.cta-banner h2 {
  color: var(--white);
  margin-bottom: 12px;
}
.cta-banner p {
  color: rgba(255,255,255,0.6);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

/* ── Layers List (Protocol page) ───────────────────────────── */
.layers-list {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.layer-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s, box-shadow 0.3s;
}
.layer-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.05);
}
.layer-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--orange);
  opacity: 0.35;
  line-height: 1;
  flex-shrink: 0;
  width: 40px;
  text-align: center;
}
.layer-item h3 { margin-bottom: 6px; }
.layer-item p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* ── Pricing Grid (Services page) ──────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
  max-width: 800px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
}
.pricing-card--featured {
  border-color: var(--orange);
  box-shadow: 0 0 0 1px var(--orange), 0 16px 48px rgba(232, 117, 42, 0.1);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 32px;
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}
.pricing-type {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.pricing-card h3 {
  font-size: 1.3rem;
  margin-bottom: 16px;
}
.pricing-amount {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}
.pricing-amount span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}
.pricing-note {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}
.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pricing-features li {
  position: relative;
  padding-left: 24px;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-body);
}
.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: 700;
  font-size: 0.85rem;
}

/* ── Agent Features (Agent page) ───────────────────────────── */
.agent-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.agent-feature {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s, box-shadow 0.3s;
}
.agent-feature:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}
.agent-feature h3 { margin-bottom: 6px; font-size: 1.02rem; }
.agent-feature p { font-size: 0.92rem; line-height: 1.6; }

/* ── FAQ ───────────────────────────────────────────────────── */
.faq-list {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item:hover { border-color: var(--orange); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  line-height: 1.4;
}
.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.3s;
}
.faq-item.open .faq-question::after {
  transform: rotate(45deg);
  color: var(--orange);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.open .faq-answer {
  max-height: 300px;
}
.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Waitlist Form ─────────────────────────────────────────── */
.waitlist-form {
  display: flex;
  gap: 8px;
}
.waitlist-form input[type="email"] {
  flex: 1;
  padding: 14px 18px;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  background: var(--dark-surface);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.waitlist-form input[type="email"]::placeholder { color: var(--text-muted-dark); }
.waitlist-form input[type="email"]:focus { border-color: var(--orange); }

/* ── Contact Form ──────────────────────────────────────────── */
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  background: var(--white);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px var(--orange-glow);
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}
.form-group select {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%237A7A7E' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--dark);
  padding: 64px 0 32px;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--dark-border);
}
.footer-brand p { margin-top: 12px; line-height: 1.6; }
.footer-brand a { color: rgba(255,255,255,0.6); }
.footer-brand a:hover { color: var(--orange); }
.footer h4 {
  color: var(--white);
  margin-bottom: 16px;
  font-size: 0.82rem;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: rgba(255,255,255,0.45);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.25);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --section-pad: var(--section-pad-m); }

  .nav-links {
    display: none;
    position: fixed;
    top: 64px; left: 0; right: 0; bottom: 0;
    flex-direction: column;
    background: var(--dark);
    padding: 24px;
    gap: 4px;
    overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-links li a {
    display: block;
    padding: 14px 16px;
    font-size: 1rem;
  }
  .nav-cta { margin-left: 0; margin-top: 12px; }
  .nav-cta a.btn { width: 100%; justify-content: center; }
  .nav-toggle { display: flex; }

  .hero { padding: 110px 0 64px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual { order: -1; }
  .hero-logo-img { max-width: 160px; margin: 0 auto; }
  .hero-badges { gap: 12px; }

  .profile-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .profile-photo { max-width: 260px; }

  .agent-teaser {
    grid-template-columns: 1fr;
    padding: 36px;
    gap: 32px;
  }
  .agent-teaser-visual { display: none; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .cta-banner { padding: 40px 24px; }

  .waitlist-form {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  .hero-content h1 { font-size: 1.9rem; }
  .hero-badges { flex-direction: column; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; }
}