/* ============================================================
   KOPTEH AUTOMATION — Design System
   Hibridni inženjerski B2B sajt · ćirilica · teal brend
   ============================================================ */

:root,
[data-theme='light'] {
  /* Surfaces — cool light, technical */
  --color-bg: #f2f6f7;
  --color-surface: #ffffff;
  --color-surface-2: #f7fafa;
  --color-surface-offset: #e9efef;
  --color-surface-offset-2: #dfe7e8;
  --color-surface-dynamic: #d7e2e3;
  --color-divider: #dde6e6;
  --color-border: #cdd9da;

  /* Text — deep teal-charcoal */
  --color-text: #0c1b1c;
  --color-text-muted: #4a6163;
  --color-text-faint: #8aa0a1;
  --color-text-inverse: #f2f7f7;

  /* Primary — Kopteh Teal */
  --color-primary: #0e7c7b;
  --color-primary-hover: #0a5f5e;
  --color-primary-active: #074545;
  --color-primary-highlight: #cfe6e4;
  --color-primary-soft: #e3f0ef;

  /* Accent — bright signal teal */
  --color-accent: #14b8a6;
  --color-accent-hover: #0d9488;

  /* Data viz accents */
  --color-warning: #c2680f;
  --color-success: #2f7d2a;
  --color-blue: #1d6fb8;
  --color-orange: #d97416;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 190 / 0.06);
  --shadow-md: 0 6px 18px oklch(0.2 0.02 190 / 0.08);
  --shadow-lg: 0 18px 44px oklch(0.2 0.02 190 / 0.14);

  --content-narrow: 680px;
  --content-default: 1080px;
  --content-wide: 1240px;

  --font-display: 'Unbounded', 'Manrope', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

[data-theme='dark'] {
  --color-bg: #071011;
  --color-surface: #0c1a1c;
  --color-surface-2: #102225;
  --color-surface-offset: #0e1d1f;
  --color-surface-offset-2: #122426;
  --color-surface-dynamic: #16302f;
  --color-divider: #18302f;
  --color-border: #21403f;

  --color-text: #d6e6e4;
  --color-text-muted: #8fa4a3;
  --color-text-faint: #5d7373;
  --color-text-inverse: #0c1b1c;

  --color-primary: #2dd4bf;
  --color-primary-hover: #5ee9d5;
  --color-primary-active: #99f6e4;
  --color-primary-highlight: #14302e;
  --color-primary-soft: #0f2624;

  --color-accent: #2dd4bf;
  --color-accent-hover: #5ee9d5;

  --color-warning: #f59e0b;
  --color-success: #4ade80;
  --color-blue: #60a5fa;
  --color-orange: #fb923c;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 6px 18px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 18px 44px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #071011;
    --color-surface: #0c1a1c;
    --color-surface-2: #102225;
    --color-surface-offset: #0e1d1f;
    --color-surface-offset-2: #122426;
    --color-surface-dynamic: #16302f;
    --color-divider: #18302f;
    --color-border: #21403f;
    --color-text: #d6e6e4;
    --color-text-muted: #8fa4a3;
    --color-text-faint: #5d7373;
    --color-text-inverse: #0c1b1c;
    --color-primary: #2dd4bf;
    --color-primary-hover: #5ee9d5;
    --color-primary-active: #99f6e4;
    --color-primary-highlight: #14302e;
    --color-primary-soft: #0f2624;
    --color-accent: #2dd4bf;
    --color-accent-hover: #5ee9d5;
    --color-warning: #f59e0b;
    --color-success: #4ade80;
    --color-blue: #60a5fa;
    --color-orange: #fb923c;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
    --shadow-md: 0 6px 18px oklch(0 0 0 / 0.4);
    --shadow-lg: 0 18px 44px oklch(0 0 0 / 0.5);
  }
}

/* ============================================================
   Type scale
   ============================================================ */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.4rem + 2vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);
  --text-hero: clamp(2.75rem, 0.8rem + 6vw, 6rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'],
ol[role='list'] {
  list-style: none;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  text-wrap: balance;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

p,
li,
figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

::selection {
  background: oklch(from var(--color-primary) l c h / 0.25);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a {
  color: inherit;
  text-decoration: none;
}

a,
button,
[role='button'],
input,
textarea,
select {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Layout helpers
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container-wide {
  max-width: var(--content-wide);
}

.section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--color-primary);
}

.lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* ============================================================
   Header
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffffff;
  border-bottom: 1px solid var(--color-divider);
}

[data-theme='dark'] .header {
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.logo__img {
  height: 38px;
  width: auto;
}

.logo__img--dark {
  display: none;
}

[data-theme='dark'] .logo__img--light {
  display: none;
}

[data-theme='dark'] .logo__img--dark {
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.nav__link[aria-current='page'] {
  color: var(--color-primary);
}

/* Nav dropdown (Партнери) */
.nav__item {
  position: relative;
}
.nav__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.nav__toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-interactive);
}
.nav__item.is-open .nav__toggle svg,
.nav__item:hover .nav__toggle svg {
  transform: rotate(180deg);
}
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  z-index: 60;
  flex-direction: column;
  gap: 2px;
}
.nav__item:hover .nav-dropdown,
.nav__item.is-open .nav-dropdown {
  display: flex;
}
.nav-dropdown a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.nav-dropdown a:hover {
  color: var(--color-primary);
  background: var(--color-surface-offset);
}
.nav-dropdown a small {
  display: block;
  font-weight: 400;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Mobile nav dropdown */
@media (max-width: 980px) {
  .nav-dropdown {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0 0 0 var(--space-3);
    min-width: 0;
  }
  .header[data-open='true'] .nav-dropdown a {
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-3);
  }
}

html {
  scroll-behavior: smooth;
}
[id] {
  scroll-margin-top: 88px;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--lg {
  padding: var(--space-4) var(--space-7);
  font-size: var(--text-base);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}

/* Mobile nav */
@media (max-width: 980px) {
  .nav,
  .header__actions .btn {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header[data-open='true'] .nav {
    display: flex;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-3);
    box-shadow: var(--shadow-lg);
  }
  .header[data-open='true'] .nav__link {
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-divider);
  }
  .header[data-open='true'] .header__actions .btn {
    display: inline-flex;
    margin-top: var(--space-2);
  }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-16), 9vw, var(--space-32)) clamp(var(--space-12), 6vw, var(--space-20));
  border-bottom: 1px solid var(--color-divider);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(60% 80% at 80% 10%, oklch(from var(--color-primary) l c h / 0.18), transparent 70%),
    radial-gradient(50% 60% at 10% 90%, oklch(from var(--color-accent) l c h / 0.12), transparent 70%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 70% at 50% 30%, black, transparent 85%);
  opacity: 0.5;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.hero h1 {
  font-size: var(--text-2xl);
  max-width: 18ch;
}

.hero h1 .accent {
  color: var(--color-primary);
}

.hero__lead {
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
}

.hero__actions {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__stats {
  margin-top: var(--space-16);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-8);
}

.stat__num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  font-weight: 600;
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

@media (max-width: 720px) {
  .hero__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6) var(--space-4);
  }
}

/* ============================================================
   Section headings
   ============================================================ */
.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
  max-width: 60ch;
}

.section-head h2 {
  font-size: var(--text-xl);
}

.section-head--row {
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-end;
  max-width: none;
}

/* ============================================================
   Cards / grids
   ============================================================ */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 900px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition:
    transform var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.card__icon {
  width: 44px;
  height: 44px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.card h3 {
  font-size: var(--text-lg);
}

/* Device showcase (dark panel for product renders on black bg) */
.device-panel {
  background: #000000;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  overflow: hidden;
}
.device-panel img {
  width: 100%;
  height: auto;
  max-height: 240px;
  object-fit: contain;
}
.browser-frame {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-2);
  box-shadow: var(--shadow-md);
}
.browser-frame__bar {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border-bottom: 1px solid var(--color-border);
}
.browser-frame__bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: block;
}
.browser-frame__bar i {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-left: var(--space-2);
}
.browser-frame img {
  width: 100%;
  display: block;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.spec-grid > div {
  text-align: center;
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.spec-grid > div b {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
}
.spec-grid > div span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
@media (max-width: 720px) {
  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* ---- Sensor catalog (SplusS) ---- */
.sensor-cat {
  margin-top: var(--space-8);
}
.sensor-cat__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}
.sensor-cat__title svg { flex: none; }
.sensor-cat__title small {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.sensor-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (max-width: 640px) {
  .sensor-grid { grid-template-columns: 1fr; }
}
.sensor-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color .2s ease, transform .2s ease;
}
.sensor-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.sensor-card__img {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  padding: var(--space-6) var(--space-4);
  min-height: 180px;
  border-bottom: 1px solid var(--color-divider);
}
.sensor-card__img img {
  max-height: 150px;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}
[data-theme='dark'] .sensor-card__img { background: #f7f7f7; }
.sensor-card__body {
  padding: var(--space-4) var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}
.sensor-card__model {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.sensor-card__spec {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.sensor-card__out {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}
.sensor-catalog__note {
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

.card__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

/* ============================================================
   Feature / split layout
   ============================================================ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

.visual-panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.visual-panel svg {
  width: 100%;
  height: 100%;
}

/* ============================================================
   Partner / logo wall
   ============================================================ */
.logo-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

@media (max-width: 720px) {
  .logo-wall {
    grid-template-columns: repeat(2, 1fr);
  }
}

.partner-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.partner-card__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
}

.partner-card__role {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.partner-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Partner quick-jump chips (overview) */
.partner-jump {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  text-decoration: none;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.partner-jump:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.partner-jump span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}
.partner-jump small {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Partner detail block */
.partner-block {
  max-width: 820px;
}
.partner-block__head h2 {
  margin-top: var(--space-3);
}

/* ============================================================
   References table / list
   ============================================================ */
.ref-list {
  border-top: 1px solid var(--color-border);
}

.ref-item {
  display: grid;
  grid-template-columns: 90px 1fr 220px 160px;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-divider);
  align-items: center;
}

.ref-item__year {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 600;
}

.ref-item__name {
  font-weight: 600;
  font-size: var(--text-base);
}

.ref-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.ref-item__type {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.ref-item__loc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

@media (max-width: 820px) {
  .ref-item {
    grid-template-columns: 1fr;
    gap: var(--space-1);
    padding-block: var(--space-4);
  }
}

/* ============================================================
   CTA band
   ============================================================ */
.cta {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 5vw, var(--space-16));
  text-align: center;
}

.cta__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 90% at 50% 0%, oklch(from var(--color-primary) l c h / 0.16), transparent 70%);
}

.cta__inner {
  position: relative;
  max-width: 56ch;
  margin-inline: auto;
}

.cta h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.cta p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

/* ============================================================
   Page header (interior pages)
   ============================================================ */
.page-head {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20)) clamp(var(--space-8), 4vw, var(--space-12));
  border-bottom: 1px solid var(--color-divider);
  position: relative;
  overflow: hidden;
}

.page-head__bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 70% at 30% 20%, black, transparent 80%);
  opacity: 0.4;
}

.page-head__inner {
  position: relative;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.page-head h1 {
  font-size: var(--text-2xl);
  max-width: 20ch;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

/* ============================================================
   Prose
   ============================================================ */
.prose {
  max-width: 72ch;
}

.prose h2 {
  font-size: var(--text-xl);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}

.prose h3 {
  font-size: var(--text-lg);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.prose p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

.prose ul {
  padding-left: var(--space-5);
  margin-bottom: var(--space-4);
}

.prose li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.prose strong {
  color: var(--color-text);
}

/* ============================================================
   Contact
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

.contact-info dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.contact-info dt:first-child {
  margin-top: 0;
}

.contact-info dd {
  font-size: var(--text-base);
}

.contact-info dd a:hover {
  color: var(--color-primary);
}

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (max-width: 820px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

.footer__about {
  max-width: 36ch;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-3);
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer__col a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
}
.footer__legal a {
  color: var(--color-text-faint);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer__legal a:hover {
  color: var(--color-primary);
}

/* ============================================================
   Tech badge / chip
   ============================================================ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
}

.chip--dot::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
}

/* ============================================================
   Reveal animation
   ============================================================ */
.reveal {
  transform: translateY(16px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  transform: none;
}

/* 19 — Blog post cards */
.post-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-interactive), border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.post-card:hover { transform: translateY(-3px); border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.post-card__media {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.post-card__body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); flex: 1; }
.post-card__meta { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text-faint); letter-spacing: 0.08em; text-transform: uppercase; display: flex; gap: var(--space-3); }
.post-card__title { font-size: var(--text-lg); }
.post-card__excerpt { color: var(--color-text-muted); font-size: var(--text-sm); }
.post-card__read { margin-top: auto; font-size: var(--text-sm); color: var(--color-primary); font-weight: 600; }