/* =============================================
   Vipa Pharma, Inc. — Global Styles
   Scheme: Gradient Hero + Clean White Body
   Brand: #304A59 (navy) · #8AC2D5 (light blue)
   Font: Montserrat
   ============================================= */

:root {
  --navy:       #304A59;
  --navy-deep:  #1D3345;
  --navy-mid:   #3D5F72;
  --blue:       #8AC2D5;
  --blue-dark:  #5AAFC8;
  --blue-pale:  #EAF5F9;
  --blue-glow:  rgba(138,194,213,.18);

  --bg:         #FFFFFF;
  --bg-alt:     #F4F8FB;
  --bg-card:    #FFFFFF;

  --text:       #1D3345;
  --text-body:  #4A6070;
  --text-muted: #6B8898;
  --text-faint: #9BB5C2;

  --border:        #D4E2EA;
  --border-subtle: #E6EFF5;

  --success: #2EAA7E;

  --radius:    10px;
  --radius-lg: 16px;
  --shadow:    0 2px 12px rgba(48,74,89,.08);
  --shadow-card: 0 1px 3px rgba(48,74,89,.05), 0 6px 20px rgba(48,74,89,.07);
  --font:      'Montserrat', system-ui, -apple-system, sans-serif;
  --max-w:     1160px;
  --nav-h:     72px;

  /* Hero gradient — flows from navy to light blue */
  --hero-grad: linear-gradient(135deg, #1D3345 0%, #304A59 35%, #5A90A8 70%, #8AC2D5 100%);
}

/* ── Reset ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-body);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Typography ────────────────────────────── */
h1 { font-size: clamp(2rem,5vw,3.2rem); font-weight: 700; line-height: 1.13; letter-spacing: -.025em; color: var(--text); }
h2 { font-size: clamp(1.5rem,3.5vw,2.1rem); font-weight: 700; line-height: 1.2; letter-spacing: -.01em; color: var(--text); }
h3 { font-size: 1.15rem; font-weight: 600; color: var(--text); }
h4 { font-size: 1rem;    font-weight: 600; color: var(--text); }
p  { color: var(--text-body); }

/* ── Layout ────────────────────────────────── */
.container  { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 88px 0; }
.section-sm { padding: 52px 0; }
.grid-2     { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.grid-3     { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.divider    { border: none; border-top: 1px solid var(--border-subtle); }

/* ── Buttons (light-bg context) ────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .72rem 1.5rem; border-radius: var(--radius);
  font-family: var(--font); font-size: .9rem; font-weight: 600;
  letter-spacing: .01em; transition: all .2s ease; cursor: pointer;
}
.btn-primary {
  background: var(--navy); color: #fff; border: 1px solid var(--navy);
}
.btn-primary:hover { background: var(--navy-mid); border-color: var(--navy-mid); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(48,74,89,.28); }
.btn-accent {
  background: var(--blue); color: var(--navy); border: 1px solid var(--blue); font-weight: 700;
}
.btn-accent:hover { background: var(--blue-dark); border-color: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(138,194,213,.4); }
.btn-outline {
  border: 1px solid var(--border); color: var(--text); background: transparent;
}
.btn-outline:hover { border-color: var(--blue); color: var(--navy); background: var(--blue-glow); }
.btn-ghost { color: var(--navy); padding: .45rem 0; font-weight: 600; font-size: .875rem; }
.btn-ghost::after { content: ' →'; }
.btn-ghost:hover { color: var(--blue-dark); }

/* Buttons on dark/gradient hero */
.btn-hero-primary {
  background: #fff; color: var(--navy); border: 1px solid #fff; font-weight: 700;
}
.btn-hero-primary:hover { background: #e4f3f9; border-color: #e4f3f9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,.18); }
.btn-hero-outline {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5);
}
.btn-hero-outline:hover { border-color: #fff; background: rgba(255,255,255,.12); transform: translateY(-1px); }

/* ── Cards ─────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.card:hover { border-color: var(--blue); transform: translateY(-3px); box-shadow: 0 8px 28px rgba(138,194,213,.22); }

/* ── Badges ────────────────────────────────── */
.badge {
  display: inline-block; padding: .25rem .8rem; border-radius: 999px;
  font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
}
.badge-brand  { background: rgba(48,74,89,.08);   color: var(--navy);   border: 1px solid rgba(48,74,89,.15); }
.badge-accent { background: var(--blue-glow);     color: #227A96;       border: 1px solid rgba(138,194,213,.4); }
.badge-muted  { background: #EEF3F7;              color: var(--text-muted); border: 1px solid var(--border); }
.badge-green  { background: rgba(46,170,126,.1);  color: var(--success); border: 1px solid rgba(46,170,126,.25); }
.badge-on-dark { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.3); }

/* ── Overline ──────────────────────────────── */
.overline {
  display: block; font-size: .72rem; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--blue-dark); margin-bottom: .6rem;
}
.overline-on-dark { color: var(--blue); }

/* ── Section header ────────────────────────── */
.section-header { margin-bottom: 3rem; }
.section-header h2 { margin-bottom: .75rem; }
.section-header p  { max-width: 580px; }

/* Decorative accent line under section headers */
.section-header h2::after {
  content: '';
  display: block; width: 40px; height: 3px;
  background: var(--blue); border-radius: 2px;
  margin-top: .65rem;
}

/* ── Tags ──────────────────────────────────── */
.tag { display: inline-flex; align-items: center; gap: .35rem; font-size: .82rem; color: var(--text-muted); }
.tag::before { content: '✓'; color: var(--success); font-weight: 700; }
.tag-on-dark { color: rgba(255,255,255,.75); }
.tag-on-dark::before { color: var(--blue); }

/* ══════════════════════════════════════════════
   NAVIGATION — white, clean
   ══════════════════════════════════════════════ */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 1px 10px rgba(48,74,89,.07);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: flex-end; gap: .85rem; }
.nav-logo img { height: 52px; width: auto; display: block; }
.nav-logo-tagline {
  font-size: .62rem; font-weight: 600;
  color: var(--text-faint); letter-spacing: .06em;
  text-transform: uppercase; line-height: 1;
  margin-bottom: 15px;  /* offsets tagline centre to match VIPA PHARMA text in SVG */
}
.nav-links { display: flex; align-items: center; gap: .15rem; }
.nav-links a {
  padding: .45rem .9rem; border-radius: 7px;
  font-size: .84rem; font-weight: 600; color: var(--text-muted);
  transition: color .15s, background .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--navy); background: var(--blue-glow); }
.nav-links a.nav-cta {
  background: var(--navy); color: #fff; margin-left: .5rem;
  border: 1px solid var(--navy);
}
.nav-links a.nav-cta:hover { background: var(--navy-mid); }

/* Hamburger */
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: .5rem; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); border-radius: 2px; transition: all .25s; }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ══════════════════════════════════════════════
   HERO — full gradient, navy → light blue
   ══════════════════════════════════════════════ */
.hero {
  background: var(--hero-grad);
  padding: 104px 0 96px;
  position: relative; overflow: hidden;
}
/* Subtle noise / depth layer */
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 80% 20%, rgba(255,255,255,.07) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 10% 90%, rgba(0,0,0,.12) 0%, transparent 60%);
  pointer-events: none;
}
/* Floating circle accent */
.hero::after {
  content: '';
  position: absolute; right: -120px; top: 50%; transform: translateY(-50%);
  width: 500px; height: 500px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
  pointer-events: none;
}
.hero h1    { color: #fff; max-width: 900px; font-size: clamp(1.75rem, 4vw, 2.75rem); margin-bottom: 1.25rem; position: relative; line-height: 1.2; }
.hero h1 em { font-style: normal; color: var(--blue); filter: brightness(1.3); }
.hero .lead { color: rgba(255,255,255,.75); max-width: 600px; font-size: 1.05rem; margin-bottom: 2rem; position: relative; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--blue); filter: brightness(1.2); margin-bottom: 1.25rem; position: relative;
}
.hero-eyebrow::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--blue); display: block; }
.hero-ctas  { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; position: relative; }
.hero-stats {
  display: flex; gap: 2.5rem; flex-wrap: wrap;
  padding-top: 2rem; border-top: 1px solid rgba(255,255,255,.15);
  position: relative;
}
.hero-stat      { display: flex; align-items: center; gap: .5rem; font-size: .84rem; color: rgba(255,255,255,.65); font-weight: 500; }
.hero-stat-icon { font-size: 1rem; line-height: 1; flex-shrink: 0; filter: brightness(1.3); }

/* Wave divider hero → body */
.hero-wave {
  display: block; width: 100%; overflow: hidden;
  line-height: 0; background: var(--hero-grad);
}
.hero-wave svg { display: block; width: 100%; }

/* ══════════════════════════════════════════════
   PAGE HERO (sub-pages) — same gradient, shorter
   ══════════════════════════════════════════════ */
.page-hero {
  background: var(--hero-grad);
  padding: 72px 0 64px;
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 100% at 90% 50%, rgba(255,255,255,.06) 0%, transparent 60%);
  pointer-events: none;
}
.page-hero h1    { color: #fff; margin-bottom: .75rem; position: relative; }
.page-hero .lead { color: rgba(255,255,255,.72); font-size: 1.05rem; max-width: 620px; position: relative; }

.breadcrumb { display: flex; align-items: center; gap: .4rem; font-size: .82rem; color: rgba(255,255,255,.45); margin-bottom: 1.5rem; position: relative; }
.breadcrumb a { font-weight: 500; color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb-sep { color: rgba(255,255,255,.25); }

/* ══════════════════════════════════════════════
   ROADMAP
   ══════════════════════════════════════════════ */
.roadmap-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 1.25rem; }
.roadmap-card .phase-label {
  font-size: .7rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-faint); margin-bottom: .5rem;
}
.roadmap-card h3 { margin-bottom: .5rem; }
.roadmap-card p  { font-size: .9rem; }
.roadmap-card.active { border-color: var(--blue); box-shadow: 0 4px 20px rgba(138,194,213,.2); }
.roadmap-card.active .phase-label { color: var(--blue-dark); }

/* ══════════════════════════════════════════════
   ICON WRAP
   ══════════════════════════════════════════════ */
.icon-wrap {
  width: 46px; height: 46px; border-radius: 11px;
  background: var(--blue-glow); border: 1px solid rgba(138,194,213,.35);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; margin-bottom: 1rem;
}

/* ══════════════════════════════════════════════
   FEATURED PRODUCT
   ══════════════════════════════════════════════ */
.featured-product {
  background: linear-gradient(135deg, var(--blue-pale) 0%, #F8FCFE 100%);
  border: 1px solid rgba(138,194,213,.35);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center;
  box-shadow: var(--shadow-card);
}
.product-callouts { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 1.25rem; }

/* ══════════════════════════════════════════════
   STRIPE (alternate bg)
   ══════════════════════════════════════════════ */
.stripe {
  background: var(--bg-alt);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

/* ══════════════════════════════════════════════
   TECHNOLOGY PAGE
   ══════════════════════════════════════════════ */
.tech-icon {
  width: 50px; height: 50px; border-radius: 12px;
  background: var(--blue-glow); border: 1px solid rgba(138,194,213,.35);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 1rem;
}
.nda-banner {
  background: var(--blue-pale); border: 1px solid rgba(138,194,213,.4);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  font-size: .875rem; color: var(--text-body);
}
.nda-banner strong { color: var(--navy); }

.where-it-fits { display: flex; }
.phase-step {
  flex: 1; padding: 1.5rem;
  border: 1px solid var(--border); background: var(--bg-card);
  box-shadow: var(--shadow-card);
}
.phase-step:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.phase-step:last-child  { border-radius: 0 var(--radius) var(--radius) 0; }
.phase-step + .phase-step { border-left: none; }
.phase-step.active { background: var(--blue-glow); border-color: var(--blue); }
.phase-num { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); margin-bottom: .4rem; }
.phase-step.active .phase-num { color: var(--blue-dark); }
.phase-step h4 { font-size: .95rem; font-weight: 600; margin-bottom: .3rem; }
.phase-step p  { font-size: .85rem; }

/* ══════════════════════════════════════════════
   PRODUCT CATALOG
   ══════════════════════════════════════════════ */
.product-card {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .2s, box-shadow .2s;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,.13); }

/* Colored header band */
.product-card-header {
  padding: 1.75rem 1.75rem 1.5rem;
  display: flex; flex-direction: column; align-items: flex-start; gap: .6rem;
}
.product-card-header h3 { color: #fff; margin: 0; font-size: 1.2rem; }
.product-card-icon { font-size: 2.4rem; line-height: 1; }

.product-card--sleep  .product-card-header { background: linear-gradient(135deg, #1D3345 0%, #304A59 100%); }
.product-card--energy .product-card-header { background: linear-gradient(135deg, #7C2D00 0%, #C2580F 100%); }
.product-card--calm   .product-card-header { background: linear-gradient(135deg, #14412D 0%, #276749 100%); }

/* Hover glow per product */
.product-card--sleep:hover  { box-shadow: 0 12px 36px rgba(48,74,89,.25); }
.product-card--energy:hover { box-shadow: 0 12px 36px rgba(194,88,15,.25); }
.product-card--calm:hover   { box-shadow: 0 12px 36px rgba(39,103,73,.25); }

/* Specs footer tint per product */
.product-card--sleep  .product-card-specs { background: #eef4f7; }
.product-card--energy .product-card-specs { background: #fdf3ec; }
.product-card--calm   .product-card-specs { background: #edf5f0; }

.product-card-body   { padding: 1.75rem; flex: 1; }
.product-card .product-desc { font-size: .9rem; margin: .4rem 0 1.25rem; color: var(--text-muted); }
.product-card-specs {
  display: flex; gap: 1rem; flex-wrap: wrap;
  padding: 1rem 1.75rem;
  border-top: 1px solid var(--border-subtle);
}
.spec-label { font-size: .72rem; color: var(--text-faint); display: block; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.spec-value { font-size: .85rem; color: var(--text); font-weight: 600; }

/* ══════════════════════════════════════════════
   PRODUCT IMAGE GALLERY
   ══════════════════════════════════════════════ */
.product-gallery { position: sticky; top: calc(var(--nav-h) + 1.5rem); }

.gallery-main {
  background: var(--bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
}
.gallery-main img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 1.5rem;
  transition: opacity .2s ease;
}
.gallery-thumbs {
  display: flex; gap: .75rem; margin-top: .85rem;
}
.gallery-thumb {
  width: 80px; height: 80px; flex-shrink: 0;
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius);
  overflow: hidden; cursor: pointer; padding: 0;
  background: var(--bg-alt);
  transition: border-color .15s;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb:hover  { border-color: var(--blue); }
.gallery-thumb.active { border-color: var(--navy); }

/* ══════════════════════════════════════════════
   VIPAZEN SLEEP PAGE
   ══════════════════════════════════════════════ */
.product-bullets { margin: 0; padding-left: 1.1rem; display: flex; flex-direction: column; gap: .45rem; }
.product-bullets li { font-size: .95rem; color: var(--text-muted); line-height: 1.5; }

.spec-table { width: 100%; border-collapse: collapse; }
.spec-table tr { border-bottom: 1px solid var(--border-subtle); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: .75rem 0; font-size: .9rem; }
.spec-table td:first-child { color: var(--text-faint); width: 45%; font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
.spec-table td:last-child  { color: var(--text); font-weight: 600; }

.how-to-steps { display: flex; flex-direction: column; gap: .85rem; }
.how-to-step  { display: flex; gap: 1rem; align-items: flex-start; }
.step-num {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--blue-glow); border: 1px solid rgba(138,194,213,.5);
  display: flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 700; color: var(--navy);
}
.how-to-step p { font-size: .9rem; padding-top: .2rem; }

.callout-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.callout-item {
  background: var(--bg-alt); border: 1px solid var(--border-subtle);
  border-radius: var(--radius); padding: .9rem 1rem;
}
.callout-item strong { display: block; font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); margin-bottom: .2rem; }
.callout-item span { font-size: .88rem; color: var(--text); font-weight: 600; }

.compliance-note {
  background: var(--blue-pale); border: 1px solid rgba(138,194,213,.35);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  font-size: .82rem; color: var(--text-muted); line-height: 1.6;
}
.compliance-note strong { color: var(--navy); }

/* ══════════════════════════════════════════════
   CONTACT PAGE
   ══════════════════════════════════════════════ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3.5rem; align-items: start; }
.contact-list { display: flex; flex-direction: column; gap: .6rem; margin-top: 1rem; }
.contact-list li { display: flex; align-items: flex-start; gap: .75rem; font-size: .9rem; }
.contact-list li::before { content: '→'; color: var(--blue-dark); flex-shrink: 0; font-weight: 700; }

.form-group   { margin-bottom: 1.2rem; }
.form-label   { display: block; font-size: .78rem; font-weight: 700; letter-spacing: .05em; color: var(--text-muted); margin-bottom: .4rem; text-transform: uppercase; }
.form-input, .form-textarea, select.form-input {
  width: 100%; background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .72rem 1rem;
  color: var(--text); font-family: var(--font); font-size: .9rem;
  transition: border-color .2s, box-shadow .2s; outline: none; -webkit-appearance: none;
}
.form-input:focus, .form-textarea:focus, select.form-input:focus {
  border-color: var(--blue); box-shadow: 0 0 0 3px rgba(138,194,213,.2); background: #fff;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-faint); }
.form-textarea { resize: vertical; min-height: 130px; }
.form-row     { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-actions { display: flex; gap: 1rem; margin-top: 1.5rem; flex-wrap: wrap; }

/* ══════════════════════════════════════════════
   FOOTER — deep navy
   ══════════════════════════════════════════════ */
.footer {
  background: var(--navy-deep);
  padding: 3.5rem 0 2rem;
}
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 2.5rem;
}
.footer-logo { display: flex; align-items: center; gap: .65rem; margin-bottom: .75rem; }
.footer-logo img  { height: 34px; width: auto; filter: brightness(0) invert(1); }
.footer-logo-name { font-size: .9rem; font-weight: 700; color: #fff; }
.footer-brand p   { font-size: .84rem; max-width: 300px; color: rgba(255,255,255,.5); }
.footer-disclaimer { margin-top: 1rem; font-size: .76rem; color: rgba(255,255,255,.28); line-height: 1.6; }
.footer-col h4 { font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.35); margin-bottom: .8rem; }
.footer-col a  { display: block; font-size: .875rem; color: rgba(255,255,255,.55); padding: .2rem 0; transition: color .15s; font-weight: 500; }
.footer-col a:hover { color: var(--blue); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 1.5rem;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  font-size: .78rem; color: rgba(255,255,255,.28); font-weight: 500;
}

/* ══════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════ */
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .featured-product { grid-template-columns: 1fr; }
  .where-it-fits { flex-direction: column; }
  .phase-step:first-child { border-radius: var(--radius) var(--radius) 0 0; }
  .phase-step:last-child  { border-radius: 0 0 var(--radius) var(--radius); }
  .phase-step + .phase-step { border-left: 1px solid var(--border); border-top: none; }
}
@media (max-width: 640px) {
  .nav-links {
    display: none; flex-direction: column; align-items: stretch; gap: .25rem;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border-subtle);
    padding: 1rem 1.5rem; box-shadow: 0 4px 16px rgba(48,74,89,.1);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .grid-3 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .callout-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1rem; }
  .section { padding: 60px 0; }
  .hero { padding: 72px 0 64px; }
}