/* ============================================================
   MIKROFAB — Teknik editöryel tasarım dili
   Fraunces (display serif) + Geist (body sans) + JetBrains Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght,SOFT,WONK@0,9..144,300..900,0..100,0..1;1,9..144,300..900,0..100,0..1&family=Geist:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---- 1. Design tokens ------------------------------------- */
:root {
  /* Color — warm editorial palette with scientific accents */
  --ink: #0F1419;
  --ink-soft: #1A2028;
  --cream: #F5F2EC;
  --cream-warm: #EFEADE;
  --paper: #FDFBF6;
  --charcoal: #22282F;

  --ember: #C8421E;        /* heat / magnetic accent */
  --ember-deep: #8F2A11;
  --frost: #2E6B8A;        /* cryo / cold accent */
  --frost-deep: #1A4562;
  --brass: #B8935C;        /* warm brass accent */
  --brass-soft: #D4B689;

  --gray-90: #2A2E33;
  --gray-70: #4A4F56;
  --gray-50: #7A7E85;
  --gray-30: #B8B5AC;
  --gray-20: #D4D0C6;
  --gray-10: #E8E3D7;
  --gray-05: #F0ECE0;

  /* Type scale */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: 3rem;
  --fs-4xl: 4rem;
  --fs-5xl: 5.5rem;
  --fs-hero: clamp(3rem, 8vw, 7rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container: 1280px;
  --container-narrow: 960px;
  --container-wide: 1440px;

  --radius-sm: 2px;
  --radius: 4px;
  --radius-lg: 8px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---- 2. Reset & base -------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
  font-feature-settings: "ss01", "ss02", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 150ms var(--ease-out);
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

::selection {
  background: var(--ember);
  color: var(--paper);
}

/* ---- 3. Typography ---------------------------------------- */
.serif {
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "SOFT" 50, "WONK" 0, "opsz" 144;
  letter-spacing: -0.02em;
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-feature-settings: "ss02", "zero";
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "SOFT" 50, "WONK" 0, "opsz" 144;
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--ink);
}

h1 { font-size: var(--fs-hero); letter-spacing: -0.04em; }
h2 { font-size: clamp(2rem, 4vw, var(--fs-3xl)); }
h3 { font-size: var(--fs-xl); letter-spacing: -0.02em; }
h4 { font-size: var(--fs-lg); letter-spacing: -0.015em; }

p { line-height: 1.65; color: var(--gray-70); }
p.lead { font-size: var(--fs-md); color: var(--ink-soft); line-height: 1.55; }

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ember);
  font-weight: 500;
}

.eyebrow.frost { color: var(--frost); }
.eyebrow.ink { color: var(--ink); }
.eyebrow.brass { color: var(--brass); }

/* ---- 4. Layout utilities ---------------------------------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-6); }
.container-wide { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--space-6); }

section { padding: var(--space-24) 0; }
section.tight { padding: var(--space-16) 0; }
section.dark { background: var(--ink); color: var(--cream); }
section.dark h1, section.dark h2, section.dark h3, section.dark h4 { color: var(--cream); }
section.dark p { color: var(--gray-30); }
section.charcoal { background: var(--charcoal); color: var(--cream); }
section.charcoal h1, section.charcoal h2, section.charcoal h3, section.charcoal h4 { color: var(--cream); }
section.charcoal p { color: var(--gray-30); }

.grid { display: grid; gap: var(--space-8); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

@media (min-width: 640px) and (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ---- 5. Navigation ---------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 242, 236, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--gray-10);
}

.nav-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 50, "WONK" 0, "opsz" 14;
  font-size: 1.375rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.logo-mark {
  width: 28px; height: 28px;
  display: inline-block;
}

.logo sup {
  font-size: 0.6em;
  font-family: 'JetBrains Mono', monospace;
  color: var(--ember);
  font-weight: 500;
  top: -0.8em;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: var(--fs-sm);
  color: var(--gray-70);
  font-weight: 500;
  position: relative;
  padding: var(--space-2) 0;
}

.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--ember);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--ink);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all 180ms var(--ease-out);
}
.nav-cta:hover { background: var(--ink); color: var(--cream); }

.nav-toggle {
  display: none;
  width: 28px; height: 20px;
  position: relative;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink);
  transition: transform 200ms var(--ease-out), opacity 150ms;
}
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 9px; }
.nav-toggle span:nth-child(3) { top: 18px; }
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--cream);
    border-bottom: 1px solid var(--gray-10);
    padding: var(--space-4) var(--space-6);
    max-height: 0;
    overflow: hidden;
    transition: max-height 250ms var(--ease-out);
    align-items: flex-start;
  }
  .nav.open .nav-links { max-height: 500px; padding: var(--space-6); }
  .nav-links li { width: 100%; border-bottom: 1px solid var(--gray-10); }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a { display: block; padding: var(--space-3) 0; font-size: var(--fs-md); }
  .nav-cta { display: none; }
}

/* ---- 6. Hero ---------------------------------------------- */
.hero {
  position: relative;
  padding: var(--space-16) 0 var(--space-24);
  overflow: hidden;
  background:
    radial-gradient(ellipse at top right, rgba(200, 66, 30, 0.05), transparent 50%),
    radial-gradient(ellipse at bottom left, rgba(46, 107, 138, 0.06), transparent 50%),
    var(--cream);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.75rem, 6.5vw, 5.5rem);
  letter-spacing: -0.04em;
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}

.hero h1 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "WONK" 1, "opsz" 144;
  color: var(--ember);
}

.hero .lead {
  max-width: 48ch;
  margin-bottom: var(--space-8);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: var(--space-8);
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--gray-20);
}

.hero-stat .num {
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 50, "WONK" 0, "opsz" 144;
  font-size: var(--fs-3xl);
  letter-spacing: -0.03em;
  color: var(--ink);
  display: block;
  line-height: 1;
}

.hero-stat .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--gray-70);
  text-transform: uppercase;
  margin-top: var(--space-2);
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
}

/* Hero visual — temperature spectrum */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- 7. Buttons ------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid currentColor;
  transition: all 200ms var(--ease-out);
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
}
.btn-primary:hover {
  background: var(--ember);
  border-color: var(--ember);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: var(--cream);
}
.btn-ember {
  background: var(--ember);
  color: var(--cream);
  border-color: var(--ember);
}
.btn-ember:hover { background: var(--ember-deep); border-color: var(--ember-deep); }

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--ink);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--ink);
  transition: all 200ms var(--ease-out);
}
.btn-link:hover { color: var(--ember); border-color: var(--ember); gap: var(--space-3); }

.btn-link.frost { color: var(--frost); border-color: var(--frost); }
.btn-link.frost:hover { color: var(--frost-deep); border-color: var(--frost-deep); }

/* ---- 8. Product cards ------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-20);
  border: 1px solid var(--gray-20);
}

@media (max-width: 900px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .product-grid { grid-template-columns: 1fr; } }

.product-card {
  position: relative;
  background: var(--paper);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  min-height: 440px;
  transition: background 300ms var(--ease-out);
  text-decoration: none;
  color: inherit;
}
.product-card:hover { background: var(--cream-warm); }
.product-card:hover .product-arrow { transform: translateX(4px); }

.product-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
}

.product-card .code {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--gray-50);
  letter-spacing: 0.1em;
}

.product-card .category {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-card .name {
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 50, "opsz" 80;
  font-size: var(--fs-2xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  color: var(--ink);
}

.product-card .tagline {
  color: var(--gray-70);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-6);
  max-width: 34ch;
}

.product-card .visual {
  margin: var(--space-6) 0;
  aspect-ratio: 4 / 3;
  background: var(--cream);
  border: 1px solid var(--gray-10);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  position: relative;
}
.product-card:hover .visual { background: var(--paper); }

.product-card .specs {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--gray-10);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.product-card .spec-item {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--gray-70);
}
.product-card .spec-item strong {
  display: block;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.8rem;
}
.product-card .spec-item .k { color: var(--gray-50); }

.product-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-6);
}
.product-arrow {
  font-size: var(--fs-md);
  transition: transform 200ms var(--ease-out);
  display: inline-block;
}

/* ---- 9. Section header ------------------------------------ */
.section-head {
  margin-bottom: var(--space-16);
  max-width: 44rem;
}
.section-head h2 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-6);
}
.section-head h2 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "WONK" 1, "opsz" 144;
  color: var(--ember);
}

.section-head.split {
  max-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: end;
}
@media (max-width: 900px) { .section-head.split { grid-template-columns: 1fr; } }

/* ---- 10. Application areas -------------------------------- */
.applications {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-1);
  background: var(--gray-10);
}
@media (max-width: 900px) { .applications { grid-template-columns: 1fr; } }

.app-card {
  padding: var(--space-12);
  background: var(--cream);
  position: relative;
  transition: background 300ms var(--ease-out);
}
.app-card:hover { background: var(--cream-warm); }

.app-card .num {
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 100, "opsz" 144;
  font-style: italic;
  font-size: var(--fs-lg);
  color: var(--gray-30);
  margin-bottom: var(--space-6);
  display: block;
}

.app-card h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-4);
}

.app-card ul {
  list-style: none;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-20);
}
.app-card ul li {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--gray-70);
  padding: var(--space-1) 0;
  padding-left: var(--space-4);
  position: relative;
}
.app-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--ember);
}

/* ---- 11. Temperature spectrum band ------------------------ */
.temp-band {
  padding: var(--space-16) 0;
  background: var(--ink);
  color: var(--cream);
  overflow: hidden;
}
.temp-band .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-30);
  margin-bottom: var(--space-6);
}
.temp-band h2 {
  color: var(--cream);
  margin-bottom: var(--space-12);
  max-width: 26ch;
}
.temp-band h2 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  color: var(--ember);
}

.temp-spectrum {
  position: relative;
  height: 120px;
  border-radius: 2px;
  background: linear-gradient(to right,
    #1e3a52 0%,
    #2E6B8A 15%,
    #6B9CB8 30%,
    #C8C2B8 45%,
    #F5F2EC 50%,
    #E8C28C 55%,
    #D4884A 70%,
    #C8421E 85%,
    #8F2A11 100%);
  margin-bottom: var(--space-8);
  overflow: hidden;
}

.temp-marker {
  position: absolute;
  top: -20px;
  bottom: -20px;
  width: 1px;
  background: var(--cream);
}
.temp-marker-label {
  position: absolute;
  top: -28px;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--cream);
  letter-spacing: 0.08em;
  transform: translateX(-50%);
  white-space: nowrap;
}

.temp-products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}
@media (max-width: 900px) { .temp-products { grid-template-columns: 1fr; } }

.temp-product {
  padding: var(--space-6);
  background: var(--charcoal);
  border: 1px solid var(--gray-90);
}
.temp-product .range {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--frost);
  margin-bottom: var(--space-2);
  letter-spacing: 0.06em;
}
.temp-product h4 {
  color: var(--cream);
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}
.temp-product p { color: var(--gray-30); font-size: var(--fs-sm); }

/* ---- 12. Services ----------------------------------------- */
.services-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-1);
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
}
@media (max-width: 900px) { .services-list { grid-template-columns: 1fr; } }

.service-item {
  padding: var(--space-12) var(--space-8);
  background: var(--paper);
  transition: background 300ms var(--ease-out);
}
.service-item:hover { background: var(--cream-warm); }

.service-item .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.service-item h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-4);
}
.service-item p { font-size: var(--fs-sm); }

/* ---- 13. CTA band ----------------------------------------- */
.cta-band {
  padding: var(--space-24) 0;
  background: var(--charcoal);
  color: var(--cream);
  position: relative;
  overflow: hidden;
}
.cta-band h2 {
  color: var(--cream);
  max-width: 20ch;
  margin-bottom: var(--space-8);
}
.cta-band h2 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  color: var(--ember);
}

.cta-band-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: end;
}
@media (max-width: 900px) { .cta-band-inner { grid-template-columns: 1fr; } }

.cta-band .btn-primary {
  background: var(--ember);
  border-color: var(--ember);
}
.cta-band .btn-primary:hover {
  background: var(--cream);
  color: var(--ink);
  border-color: var(--cream);
}

.cta-band .btn-ghost {
  color: var(--cream);
  border-color: var(--cream);
}
.cta-band .btn-ghost:hover {
  background: var(--cream);
  color: var(--ink);
}

/* ---- 14. Footer ------------------------------------------- */
.footer {
  padding: var(--space-24) 0 var(--space-8);
  background: var(--ink);
  color: var(--gray-30);
  font-size: var(--fs-sm);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--gray-90);
  margin-bottom: var(--space-6);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer h4 {
  color: var(--cream);
  font-size: var(--fs-sm);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.footer ul { list-style: none; }
.footer li { padding: var(--space-1) 0; }
.footer a:hover { color: var(--cream); }

.footer-logo {
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 50, "opsz" 80;
  font-size: var(--fs-2xl);
  color: var(--cream);
  margin-bottom: var(--space-4);
  display: block;
}

.footer-logo sup {
  font-size: 0.5em;
  font-family: 'JetBrains Mono', monospace;
  color: var(--ember);
  top: -0.9em;
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-6);
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--gray-50);
  letter-spacing: 0.06em;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ---- 15. Product detail pages ----------------------------- */
.product-hero {
  padding: var(--space-16) 0 var(--space-12);
  border-bottom: 1px solid var(--gray-10);
}
.product-hero .breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--gray-50);
  margin-bottom: var(--space-8);
  letter-spacing: 0.08em;
}
.product-hero .breadcrumb a { color: var(--ember); }
.product-hero .breadcrumb span { margin: 0 var(--space-2); color: var(--gray-30); }

.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}
@media (max-width: 900px) { .product-hero-grid { grid-template-columns: 1fr; } }

.product-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--space-4);
}
.product-hero h1 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  color: var(--ember);
}

.product-hero .tagline {
  font-size: var(--fs-md);
  color: var(--ink-soft);
  margin-bottom: var(--space-8);
  max-width: 44ch;
}

.product-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--gray-20);
  border-bottom: 1px solid var(--gray-20);
  margin-bottom: var(--space-8);
}

.product-stat {
  padding: var(--space-2) 0;
}
.product-stat .v {
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 50, "opsz" 144;
  font-size: var(--fs-2xl);
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.02em;
}
.product-stat .v sup {
  font-size: 0.6em;
  color: var(--ember);
}
.product-stat .k {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--gray-70);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-top: var(--space-2);
}

.product-visual {
  position: sticky;
  top: calc(var(--space-16) + 60px);
  padding: var(--space-12);
  background: var(--paper);
  border: 1px solid var(--gray-10);
  aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
}

.product-section {
  padding: var(--space-16) 0;
  border-bottom: 1px solid var(--gray-10);
}

.product-section h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: var(--space-8);
  max-width: 38rem;
}

.product-section h2 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  color: var(--ember);
}

.product-section h3 {
  font-size: var(--fs-lg);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.product-section p { max-width: 60ch; margin-bottom: var(--space-4); }

/* Spec table — journal style */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-8);
  background: var(--paper);
  border: 1px solid var(--gray-10);
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-sm);
}

.spec-table th, .spec-table td {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  border-bottom: 1px solid var(--gray-10);
}

.spec-table th {
  background: var(--cream-warm);
  color: var(--ink);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: var(--fs-xs);
}

.spec-table tbody tr:hover { background: var(--cream-warm); }
.spec-table tbody tr:last-child td { border-bottom: none; }

.spec-table td:first-child {
  color: var(--gray-70);
  width: 40%;
  font-weight: 400;
}
.spec-table td:last-child { color: var(--ink); font-weight: 500; }

.spec-category {
  background: var(--ink) !important;
  color: var(--cream) !important;
}
.spec-category td {
  color: var(--cream) !important;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: var(--fs-xs);
  padding: var(--space-3) var(--space-6);
}

/* Features grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-12);
  margin-top: var(--space-12);
}
@media (max-width: 900px) { .feature-grid { grid-template-columns: 1fr; } }

.feature-item h4 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
  color: var(--ink);
}
.feature-item .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
  display: block;
}
.feature-item p { font-size: var(--fs-sm); }

/* ---- 16. Forms ------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-16);
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.form-group {
  margin-bottom: var(--space-6);
}
.form-group label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-70);
  margin-bottom: var(--space-2);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: inherit;
  font-size: var(--fs-base);
  background: var(--paper);
  border: 1px solid var(--gray-20);
  color: var(--ink);
  transition: border-color 180ms;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--ember);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* ---- 17. Info blocks ------------------------------------- */
.info-block {
  padding: var(--space-8);
  background: var(--paper);
  border: 1px solid var(--gray-10);
  margin-bottom: var(--space-6);
}
.info-block h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: var(--space-3);
}
.info-block p { margin-bottom: var(--space-2); font-size: var(--fs-sm); color: var(--ink); }
.info-block a { color: var(--ink); border-bottom: 1px solid var(--gray-20); padding-bottom: 1px; }
.info-block a:hover { color: var(--ember); border-color: var(--ember); }

/* ---- 18. Instruments (infrastructure list) --------------- */
.instrument-list {
  border-top: 1px solid var(--gray-20);
}
.instrument-row {
  display: grid;
  grid-template-columns: 160px 1fr 2fr;
  gap: var(--space-8);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--gray-20);
  align-items: baseline;
}
@media (max-width: 760px) {
  .instrument-row { grid-template-columns: 1fr; gap: var(--space-2); }
}

.instrument-row .cat {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.instrument-row .name {
  font-family: 'Fraunces', serif;
  font-variation-settings: "SOFT" 50, "opsz" 80;
  font-size: var(--fs-md);
  color: var(--ink);
}
.instrument-row .spec {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-sm);
  color: var(--gray-70);
  line-height: 1.5;
}

/* ---- 19. Helpers ----------------------------------------- */
.text-center { text-align: center; }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.divider {
  height: 1px;
  background: var(--gray-20);
  margin: var(--space-16) 0;
}

/* ---- 20. Animations -------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes pulseRing {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

.hero .eyebrow { animation: fadeUp 600ms var(--ease-out) both; }
.hero h1 { animation: fadeUp 700ms 100ms var(--ease-out) both; }
.hero .lead { animation: fadeUp 700ms 200ms var(--ease-out) both; }
.hero .hero-cta { animation: fadeUp 700ms 300ms var(--ease-out) both; }
.hero .hero-stats { animation: fadeUp 700ms 400ms var(--ease-out) both; }
.hero-visual { animation: fadeIn 1000ms 200ms var(--ease-out) both; }

/* ---- 21. Decorative hero scientific visual ---------------- */
.scope-ring {
  position: absolute;
  border: 1px dashed var(--gray-30);
  border-radius: 50%;
  pointer-events: none;
}

/* Subtle background noise overlay for texture */
.noise-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3CfeColorMatrix values='0 0 0 0 0.06 0 0 0 0 0.08 0 0 0 0 0.1 0 0 0 0.15 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- 22. Additions for product detail pages ---------------- */

/* Alternate background section */
.alt-bg { background: var(--cream-warm); }

/* Section numbering & heading */
.section-head .section-num,
.section-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-3);
  display: block;
  font-weight: 500;
}

/* Two-column layout for overview text */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  margin-top: var(--space-12);
}
.two-col p { max-width: 52ch; margin-bottom: var(--space-4); color: var(--gray-70); line-height: 1.7; }
.two-col p.lead {
  font-size: var(--fs-lg);
  color: var(--ink);
  font-family: 'Fraunces', serif;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
}
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: var(--space-8); } }

/* Feature cards (icon + heading + text) */
.feature {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--gray-20);
}
.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--ember);
}
.feature-icon svg { width: 100%; height: 100%; }
.feature h3 {
  font-size: var(--fs-md);
  font-family: 'Geist', sans-serif;
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--ink);
}
.feature p {
  font-size: var(--fs-sm);
  color: var(--gray-70);
  line-height: 1.6;
}

/* Applications uses 3-col grid on product pages */
.applications {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}
@media (max-width: 900px) { .applications { grid-template-columns: 1fr; } }

/* Related products grid & card */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}
@media (max-width: 900px) { .related-grid { grid-template-columns: 1fr; } }

.related-card {
  background: var(--paper);
  padding: var(--space-8);
  border: 1px solid var(--gray-20);
  transition: all 200ms var(--ease-out);
  position: relative;
  display: block;
  color: var(--ink);
}
.related-card:hover {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
  transform: translateY(-2px);
}
.related-card .eyebrow { margin-bottom: var(--space-3); }
.related-card:hover .eyebrow { color: var(--brass-soft); }
.related-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
  color: inherit;
}
.related-card p {
  font-size: var(--fs-sm);
  color: var(--gray-70);
  line-height: 1.55;
  margin-bottom: var(--space-6);
}
.related-card:hover p { color: var(--gray-30); }
.related-card .arrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-md);
  color: var(--ember);
}
.related-card:hover .arrow { color: var(--brass-soft); }

/* Product hero stats: specific tweaks */
.product-hero .hero-cta { margin-top: var(--space-8); }

/* Stage/process steps (for uygulamalar & hizmetler pages) */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
  counter-reset: step;
}
@media (max-width: 900px) { .process-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .process-steps { grid-template-columns: 1fr; } }

.process-step {
  padding: var(--space-6);
  background: var(--paper);
  border-left: 3px solid var(--ember);
  counter-increment: step;
  position: relative;
}
.process-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: var(--space-3);
}
.process-step h3 {
  font-family: 'Fraunces', serif;
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
  font-weight: 500;
}
.process-step p {
  font-size: var(--fs-sm);
  color: var(--gray-70);
  line-height: 1.55;
}

/* Application detail cards (richer than homepage cards) */
.app-detail-card {
  padding: var(--space-12);
  background: var(--paper);
  border: 1px solid var(--gray-20);
  margin-bottom: var(--space-8);
}
.app-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); }
@media (max-width: 900px) { .app-detail-grid { grid-template-columns: 1fr; gap: var(--space-6); } }

.app-detail-card h3 {
  font-family: 'Fraunces', serif;
  font-size: var(--fs-xl);
  margin-bottom: var(--space-4);
}
.app-detail-card h3 em {
  font-style: italic;
  color: var(--ember);
  font-weight: 400;
}
.app-detail-card .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  color: var(--ember);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-3);
  display: block;
  font-weight: 500;
}
.app-detail-card p { margin-bottom: var(--space-4); color: var(--gray-70); line-height: 1.7; }
.app-detail-card ul {
  list-style: none;
  padding: 0;
  margin-top: var(--space-4);
}
.app-detail-card ul li {
  padding: var(--space-2) 0;
  padding-left: var(--space-6);
  position: relative;
  font-size: var(--fs-sm);
  color: var(--gray-70);
  border-bottom: 1px dotted var(--gray-20);
}
.app-detail-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--ember);
  font-family: 'JetBrains Mono', monospace;
}
.app-detail-card .used-systems {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--gray-20);
  font-size: var(--fs-xs);
  color: var(--gray-50);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
}

/* Service cards extended for services page */
.service-detail {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--gray-20);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-12);
}
@media (max-width: 900px) { .service-detail { grid-template-columns: 1fr; gap: var(--space-6); } }
.service-detail .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-lg);
  color: var(--ember);
  font-weight: 500;
}
.service-detail h3 {
  font-family: 'Fraunces', serif;
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-4);
  font-weight: 500;
  line-height: 1.1;
}
.service-detail h3 em { font-style: italic; color: var(--ember); font-weight: 400; }
.service-detail p { margin-bottom: var(--space-4); color: var(--gray-70); line-height: 1.7; max-width: 60ch; }
.service-detail ul { list-style: none; padding: 0; margin-top: var(--space-4); }
.service-detail ul li {
  padding: var(--space-2) 0;
  padding-left: var(--space-6);
  position: relative;
  font-size: var(--fs-sm);
  color: var(--gray-70);
}
.service-detail ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--ember);
}

/* Team / company values */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}
@media (max-width: 900px) { .values-grid { grid-template-columns: 1fr; } }
.value-card {
  padding: var(--space-8);
  border-top: 2px solid var(--ember);
  background: var(--paper);
}
.value-card h3 {
  font-family: 'Fraunces', serif;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
  font-weight: 500;
}
.value-card p { font-size: var(--fs-sm); color: var(--gray-70); line-height: 1.6; }

/* Timeline (for about page) */
.timeline { margin-top: var(--space-12); border-left: 2px solid var(--gray-20); padding-left: var(--space-8); }
.timeline-item { margin-bottom: var(--space-8); position: relative; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(var(--space-8) * -1 - 6px);
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--ember);
  border-radius: 50%;
}
.timeline-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-sm);
  color: var(--ember);
  margin-bottom: var(--space-2);
  font-weight: 600;
}
.timeline-item h3 {
  font-family: 'Fraunces', serif;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}
.timeline-item p { color: var(--gray-70); font-size: var(--fs-sm); max-width: 55ch; line-height: 1.6; }

/* Submit button */
.btn-submit {
  width: 100%;
  padding: var(--space-4) var(--space-8);
  background: var(--ink);
  color: var(--cream);
  border: none;
  font-family: 'Geist', sans-serif;
  font-size: var(--fs-base);
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 200ms var(--ease-out);
  margin-top: var(--space-4);
}
.btn-submit:hover {
  background: var(--ember);
}