/* =========================================================
   GLUCOTECH v3 — Apple-style minimal
   Beyaz fon · lacivert ink · Sözleş palet uyumlu
   ========================================================= */

:root {
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --bg-2: #f5f5f7;
  --bg-3: #f8fafc;
  --ink: #0F172A;
  --ink-soft: #1f2937;
  --muted: #6b7280;
  --dim: #9ca3af;
  --line: #e5e7eb;
  --line-soft: #f1f3f5;

  /* Sözleş paleti */
  --sz-blue: #0EA5E9;
  --sz-orange: #F59E0B;
  --sz-navy: #0F172A;
  --sz-bg: #F8FAFC;

  /* OddAI accent */
  --od-green: #06d6a0;
  --od-green-dark: #047857;

  --font-body: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --max: 1200px;
  --gutter: clamp(1.25rem, 3vw, 2rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* =========== NAV =========== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 1.4rem 0;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 1px 0 var(--line-soft);
  padding: 1rem 0;
}
.navbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
}
.nav-logo { display: flex; align-items: center; gap: 0.6rem; }
.nav-logo img { height: 32px; width: auto; transition: height 0.3s ease; }
.navbar.scrolled .nav-logo img { height: 28px; }
.nav-logo-text { font-size: 1.3rem; font-weight: 600; color: var(--ink); letter-spacing: -0.025em; }
.nav-logo-text em { font-weight: 400; opacity: 0.7; font-style: normal; }

.nav-menu { display: flex; justify-content: center; gap: 2.4rem; list-style: none; }
.nav-menu a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s;
}
.nav-menu a:hover { color: var(--ink); }

.nav-actions { display: flex; align-items: center; gap: 1rem; }

.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem;
  font-size: 0.78rem;
  background: rgba(255,255,255,0.6);
}
.lang-switch button {
  padding: 0.35rem 0.75rem;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 500;
  color: var(--muted);
  border-radius: 999px;
  transition: all 0.25s;
  font-family: inherit;
  letter-spacing: 0.02em;
}
.lang-switch button.active { background: var(--ink); color: white; }

.nav-cta {
  padding: 0.65rem 1.4rem;
  background: var(--ink);
  color: white;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  border-radius: 999px;
}
.nav-cta:hover { background: #1f2937; transform: translateY(-1px); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  color: var(--ink);
  font-size: 1rem;
}

/* =========== UTILITY =========== */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-bottom: 1.2rem;
}
.eyebrow::before { content: '— '; margin-right: 0.4rem; }

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.95rem 1.7rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1.5px solid transparent;
  font-family: inherit;
  letter-spacing: -0.01em;
}
.btn-primary { background: var(--ink); color: white; }
.btn-primary:hover { background: #1f2937; transform: translateY(-2px); box-shadow: 0 12px 30px -8px rgba(15, 23, 42, 0.3); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg-2); transform: translateY(-2px); }
.btn-arrow::after { content: '→'; transition: transform 0.3s ease; }
.btn-arrow:hover::after { transform: translateX(4px); }

/* =========== HERO =========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(14, 165, 233, 0.06), transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(245, 158, 11, 0.04), transparent 60%);
}

/* Logo motifi: glikoz karbon halkası — sürekli hareketli, mouse-reaktif */
.hero-hex {
  position: absolute;
  z-index: -1;
  color: var(--ink);
  pointer-events: none;
  will-change: transform;
  transition: opacity 0.6s ease;
}
.hero-hex-1 {
  top: -60px;
  right: -120px;
  width: 540px;
  height: auto;
  opacity: 0.08;
}
.hero-hex-2 {
  bottom: -140px;
  left: -100px;
  width: 420px;
  height: auto;
  opacity: 0.06;
}
.hero-hex-3 {
  top: calc(50% - 100px);
  right: 22%;
  width: 240px;
  height: auto;
  opacity: 0.05;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1rem;
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 2.5rem;
}
.hero-eyebrow .pulse {
  width: 6px; height: 6px;
  background: var(--sz-blue);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.6); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(14, 165, 233, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 300;
  letter-spacing: -0.045em;
  line-height: 1.02;
  color: var(--ink);
  margin-bottom: 2rem;
}
.hero-title .ital { font-style: italic; font-weight: 300; color: var(--muted); }

.hero-subtitle {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  font-weight: 400;
  color: var(--muted);
  line-height: 1.5;
  max-width: 56ch;
  margin-bottom: 3rem;
}
.hero-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--line);
}
.hero-meta-cell .num {
  font-size: 2.4rem;
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink);
  display: block;
}
.hero-meta-cell .num em { font-style: normal; color: var(--muted); font-size: 0.7em; }
.hero-meta-cell .label { font-size: 0.85rem; color: var(--muted); margin-top: 0.4rem; }

/* =========== SECTION =========== */
section { padding: 7rem 0; position: relative; }

.section-head { margin-bottom: 4rem; max-width: 780px; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 300;
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: var(--ink);
  margin-bottom: 1rem;
}
.section-title .ital { font-style: italic; color: var(--muted); }
.section-text {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--muted);
  line-height: 1.55;
  max-width: 60ch;
}

/* =========== PRODUCTS =========== */
.products-section { background: var(--bg-2); }
.products { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.product {
  position: relative;
  background: white;
  border-radius: 28px;
  padding: 3rem 2.5rem;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s;
  cursor: pointer;
  isolation: isolate;
}
.product:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -20px rgba(15, 23, 42, 0.15); }
.product-bg { position: absolute; inset: 0; z-index: -1; opacity: 0.5; transition: opacity 0.4s; }
.product:hover .product-bg { opacity: 0.8; }
.product-oddai .product-bg {
  background:
    radial-gradient(ellipse at top right, rgba(6, 214, 160, 0.10), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(15, 23, 42, 0.04), transparent 70%);
}
.product-sozles .product-bg {
  background:
    radial-gradient(ellipse at top right, rgba(245, 158, 11, 0.10), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(14, 165, 233, 0.10), transparent 70%);
}

.product-status {
  position: absolute;
  top: 2rem; right: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  border-radius: 999px;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.status-live { background: rgba(6, 214, 160, 0.12); color: #06a378; }
.status-soon { background: rgba(245, 158, 11, 0.14); color: #b45309; }
.status-live .dot { background: #06d6a0; }
.status-soon .dot { background: #F59E0B; }
.product-status .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.7; transform: scale(1.2); } }

.product-logo-area { height: 56px; display: flex; align-items: center; margin-bottom: 1.8rem; }
.product-logo-area img { height: 100%; width: auto; object-fit: contain; }
.product-logo-fallback { font-family: var(--font-display); font-weight: 600; font-size: 2rem; letter-spacing: -0.03em; }

.product-headline {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  max-width: 22ch;
  color: var(--ink);
}
.product-desc { font-size: 1rem; color: var(--muted); line-height: 1.55; max-width: 50ch; margin-bottom: 2rem; }

.product-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.8rem;
}
.product-meta-cell h6 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.4rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.product-meta-cell p { font-size: 0.92rem; color: var(--ink); font-weight: 500; }

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  transition: gap 0.3s ease;
}
.product-link::after { content: '→'; transition: transform 0.3s ease; }
.product-link:hover { gap: 0.8rem; }
.product-link:hover::after { transform: translateX(4px); }
.product-actions { display: flex; gap: 1.5rem; align-items: center; flex-wrap: wrap; }

/* =========== STATS =========== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat { padding: 3rem 1.5rem; border-right: 1px solid var(--line); text-align: left; }
.stat:last-child { border-right: none; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink);
}
.stat-num em { font-style: normal; color: var(--muted); font-size: 0.6em; font-weight: 400; }
.stat-label { font-size: 0.88rem; color: var(--muted); margin-top: 0.6rem; max-width: 24ch; }

/* =========== SERVICES =========== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card {
  padding: 2.2rem 1.8rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: white;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.service-card:hover {
  border-color: var(--ink);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.1);
}
.service-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.4rem;
  transition: all 0.3s;
  color: var(--ink);
}
.service-card:hover .service-icon { background: var(--ink); color: white; }
.service-icon svg { width: 22px; height: 22px; stroke: currentColor; }
.service-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.5rem; letter-spacing: -0.02em; color: var(--ink); }
.service-card p { font-size: 0.92rem; color: var(--muted); line-height: 1.55; }

/* =========== INVEST =========== */
.invest-section { background: var(--bg-2); }
.invest { display: grid; grid-template-columns: 1fr 1.2fr; gap: 5rem; align-items: center; }
.invest-list { list-style: none; display: grid; gap: 1rem; }
.invest-item {
  background: white;
  padding: 1.6rem 1.8rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  transition: all 0.3s;
}
.invest-item:hover { border-color: var(--ink); transform: translateX(4px); }
.invest-stage {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-weight: 600;
}
.invest-item h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.2rem; color: var(--ink); letter-spacing: -0.01em; }
.invest-item p { font-size: 0.88rem; color: var(--muted); line-height: 1.45; }
.invest-amount { font-family: var(--font-mono); font-size: 0.85rem; color: var(--ink); font-weight: 600; }

.invest-visual {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
}

/* Stüdyo formülü — orbit yerine */
.invest-formula {
  background: white;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  position: relative;
  overflow: hidden;
}
.invest-formula::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink) 40%, var(--ink) 60%, transparent);
  opacity: 0.15;
}

.formula-row {
  display: flex;
  align-items: center;
}
.formula-inputs {
  flex-direction: column;
  gap: 0;
}
.formula-cell {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  width: 100%;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.formula-cell:last-of-type { border-bottom: none; }
.formula-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 500;
}
.formula-val {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.015em;
}

.formula-op {
  display: none;
}

.formula-mid {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin: 0.4rem 0;
}
.formula-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}
.formula-hex {
  width: 56px;
  height: auto;
  color: var(--ink);
  flex-shrink: 0;
}

.formula-output {
  gap: 1rem;
  padding-top: 0.4rem;
}
.formula-arrow {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1;
}
.formula-result {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.formula-result-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 500;
}
.formula-result-val {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.025em;
}

.formula-footnote {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.55;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  margin-top: 0.4rem;
  font-style: italic;
}

/* =========== PROCESS =========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
}
.process-step {
  padding: 2.4rem 1.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  min-height: 240px;
}
.process-step-num {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 3rem;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
  font-style: italic;
}
.process-step h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--ink); letter-spacing: -0.02em; }
.process-step p { font-size: 0.9rem; color: var(--muted); line-height: 1.55; }

/* =========== CTA =========== */
.cta-section {
  background: var(--ink);
  color: white;
  padding: 7rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 0%, rgba(14, 165, 233, 0.18), transparent 60%),
    radial-gradient(ellipse at 70% 100%, rgba(245, 158, 11, 0.10), transparent 60%);
  pointer-events: none;
}
.cta-content { position: relative; z-index: 1; }
.cta-section h2 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1.5rem;
  max-width: 16ch;
  margin-left: auto;
  margin-right: auto;
  color: white;
}
.cta-section h2 .ital { font-style: italic; color: rgba(255,255,255,0.6); }
.cta-section p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  max-width: 50ch;
  margin: 0 auto 3rem;
  line-height: 1.55;
}
.cta-section .btn-primary { background: white; color: var(--ink); }
.cta-section .btn-primary:hover { background: rgba(255,255,255,0.9); }
.cta-section .btn-ghost { border-color: rgba(255,255,255,0.2); color: white; }
.cta-section .btn-ghost:hover { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.4); }

/* =========== FOOTER =========== */
.footer { background: white; border-top: 1px solid var(--line); padding: 4rem 0 2rem; }
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--line);
}
.footer-logo { height: 32px; margin-bottom: 1.2rem; width: auto; }
.footer-logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.025em;
  margin-bottom: 1.2rem;
  color: var(--ink);
}
.footer-brand p { font-size: 0.9rem; color: var(--muted); line-height: 1.55; max-width: 36ch; margin-bottom: 1.5rem; }
.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.footer-status-dot {
  width: 6px; height: 6px;
  background: var(--od-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--od-green);
  animation: pulse-dot 2s ease-in-out infinite;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 1.2rem;
  letter-spacing: 0.08em;
  font-weight: 500;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { font-size: 0.92rem; color: var(--ink-soft); transition: color 0.2s; }
.footer-col a:hover { color: var(--sz-blue); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* =========== MOBILE =========== */
@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .nav-menu, .nav-actions .nav-cta { display: none; }
  .nav-actions { gap: 0.6rem; }
  .navbar-inner { grid-template-columns: 1fr auto; }
  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: white;
    padding: 1.5rem var(--gutter);
    border-bottom: 1px solid var(--line);
    gap: 1.2rem;
    z-index: 99;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .hero { padding: 110px 0 60px; min-height: auto; }
  .hero-hex-1 { width: 280px; top: -40px; right: -60px; }
  .hero-hex-2 { width: 240px; bottom: -80px; left: -50px; }
  .hero-hex-3 { width: 140px; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1; justify-content: center; }
  .hero-meta { grid-template-columns: 1fr; gap: 1.5rem; }
  .products { grid-template-columns: 1fr; }
  .product { min-height: auto; padding: 2.2rem 1.8rem; }
  .product-meta { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
  .services-grid { grid-template-columns: 1fr; }
  .invest { grid-template-columns: 1fr; gap: 3rem; }
  .invest-visual { max-width: 100%; }
  .invest-formula { padding: 2rem 1.5rem; }
  .process-grid { grid-template-columns: 1fr; }
  .process-step { border-right: none; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; gap: 1rem; }
  section { padding: 4.5rem 0; }
}