/* ============================================================
   LADIGA MEMORY LAB — Shared Design System
   One source of truth. Tune the whole site from :root below.
   Aesthetic: warm archival — ink base, cream paper, ember accent.
   ============================================================ */

/* ---------- 1. Design tokens (CSS custom properties) ---------- */
:root {
  /* Color — base palette (warm cream + cool ink for teal harmony) */
  --ink:        #122120;   /* near-black, cool teal-tinted */
  --ink-2:      #18302E;   /* raised surface on dark */
  --ink-3:      #244440;   /* hairlines / borders on dark */
  --paper:      #F5F1E9;   /* warm cream */
  --paper-2:    #EAE4D6;   /* slightly deeper paper */
  --paper-3:    #DBD3C2;   /* paper borders */

  /* Color — ink text on paper / paper text on ink */
  --text:       #1B2625;   /* body on paper */
  --text-soft:  #4F5A57;   /* muted on paper */
  --text-faint: #828D88;   /* captions on paper */
  --on-ink:     #ECEFE9;   /* body on ink */
  --on-ink-soft:#9FB2AD;   /* muted on ink */

  /* Color — PRIMARY accent = brand teal (#0A5C63 from logo) + warm secondary */
  --teal:       #0A5C63;   /* primary accent — brand teal */
  --teal-deep:  #074A50;   /* hover/pressed */
  --teal-glow:  #4FA6A8;   /* light glow on dark */
  --teal-soft:  #6FA09C;
  /* warm secondary — muted clay, used sparingly to complement teal */
  --clay:       #C2632B;   /* warm accent for rare highlights */
  --clay-deep:  #A24D1E;
  --clay-glow:  #E08A4E;

  /* Back-compat aliases: existing markup uses --ember*; point them at teal
     so the whole site reskins from these lines without touching every file. */
  --ember:      var(--teal);
  --ember-deep: var(--teal-deep);
  --ember-glow: var(--teal-glow);

  /* Feedback */
  --ok:    #3F7D52;
  --warn:  #B4892B;
  --err:   #B23B30;

  /* Type */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body:    "Public Sans", system-ui, sans-serif;
  --font-mono:    "Space Mono", ui-monospace, monospace;

  /* Fluid type scale (clamp: min, fluid, max) */
  --fs-eyebrow: clamp(0.72rem, 0.68rem + 0.2vw, 0.8rem);
  --fs-small:   clamp(0.84rem, 0.8rem + 0.2vw, 0.92rem);
  --fs-body:    clamp(1rem, 0.96rem + 0.3vw, 1.12rem);
  --fs-lead:    clamp(1.18rem, 1.05rem + 0.6vw, 1.45rem);
  --fs-h3:      clamp(1.35rem, 1.15rem + 1vw, 1.85rem);
  --fs-h2:      clamp(1.9rem, 1.4rem + 2.4vw, 3rem);
  --fs-h1:      clamp(2.6rem, 1.8rem + 4vw, 5rem);
  --fs-display: clamp(3.2rem, 2rem + 6vw, 6.5rem);

  /* Spacing scale (8px base) */
  --sp-1: 0.5rem;   --sp-2: 1rem;    --sp-3: 1.5rem;
  --sp-4: 2rem;     --sp-5: 3rem;    --sp-6: 4rem;
  --sp-7: 6rem;     --sp-8: 8rem;    --sp-9: 12rem;

  /* Layout */
  --container: 1280px;
  --container-narrow: 820px;
  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;

  /* Depth */
  --shadow-sm: 0 1px 2px rgba(22,19,15,0.08), 0 2px 6px rgba(22,19,15,0.06);
  --shadow:    0 4px 14px rgba(22,19,15,0.12), 0 10px 30px rgba(22,19,15,0.10);
  --shadow-lg: 0 10px 40px rgba(22,19,15,0.22), 0 30px 80px rgba(22,19,15,0.18);

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --t-fast: 150ms;
  --t:      240ms;
  --t-slow: 360ms;

  /* Header height (used for anchor offset) */
  --header-h: 76px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text);
  background-color: var(--paper);
  /* subtle paper grain + soft cool gradient depth */
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(10,92,99,0.07), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(10,92,99,0.04), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, video, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font: inherit; color: inherit; }

/* Fine grain texture overlay — tasteful, low opacity */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 540;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--text);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 560; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
p  { text-wrap: pretty; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "";
  width: 1.8em; height: 1px;
  background: var(--ember);
  display: inline-block;
}
.lead { font-size: var(--fs-lead); color: var(--text-soft); line-height: 1.5; }

/* ---------- 4. Layout helpers ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--sp-3); }
.narrow { max-width: var(--container-narrow); }
.section { position: relative; padding-block: var(--sp-7); z-index: 2; }
.section--tight { padding-block: var(--sp-6); }
section[id], .anchor { scroll-margin-top: calc(var(--header-h) + 16px); }

.stack > * + * { margin-top: var(--sp-3); }
.center { text-align: center; }
.measure { max-width: 62ch; }
.measure-center { max-width: 62ch; margin-inline: auto; }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.55em;
  min-height: 48px;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: 0.01em;
  transition: transform var(--t-fast) var(--ease),
              background-color var(--t) var(--ease),
              color var(--t) var(--ease),
              box-shadow var(--t) var(--ease),
              border-color var(--t) var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn:focus-visible { outline: 3px solid var(--ember); outline-offset: 3px; }

.btn--primary { background: var(--ember); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--ember-deep); box-shadow: var(--shadow); transform: translateY(-2px); }

.btn--ghost { background: transparent; color: var(--text); border: 1.5px solid var(--paper-3); }
.btn--ghost:hover { border-color: var(--ember); color: var(--ember-deep); transform: translateY(-2px); }

.btn--on-ink { background: var(--paper); color: var(--ink); }
.btn--on-ink:hover { background: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }

.btn--ghost-on-ink { background: transparent; color: var(--on-ink); border: 1.5px solid var(--ink-3); }
.btn--ghost-on-ink:hover { border-color: var(--ember-glow); color: var(--ember-glow); }

.btn--lg { min-height: 54px; padding: 1rem 2rem; font-size: var(--fs-body); }

/* link with animated underline */
.link-arrow {
  display: inline-flex; align-items: center; gap: 0.4em;
  color: var(--ember-deep); font-weight: 600;
  position: relative;
}
.link-arrow svg { transition: transform var(--t) var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }
.link-arrow::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1.5px; background: var(--ember);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t) var(--ease);
}
.link-arrow:hover::after { transform: scaleX(1); }

/* ---------- 6. Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t) var(--ease),
              background-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--paper-3);
  box-shadow: var(--shadow-sm);
}
.nav {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3);
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.15rem; letter-spacing: -0.01em; color: var(--text);
  flex: 0 0 auto; line-height: 1.05;
}
.brand .mark {
  height: 38px; width: auto; flex: 0 0 auto; display: block;
}
.brand > span { display: block; white-space: nowrap; }
.brand small {
  display: block; font-family: var(--font-mono); font-weight: 400;
  font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-faint); margin-top: 2px; white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: var(--sp-1); list-style: none; }
.nav-links a {
  padding: 0.5rem 0.9rem; border-radius: var(--radius-sm);
  font-size: var(--fs-small); font-weight: 500; color: var(--text-soft);
  transition: color var(--t) var(--ease), background-color var(--t) var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--paper-2); }
.nav-links a.active { color: var(--ember-deep); }
.nav-cta { margin-left: var(--sp-1); }

.nav-toggle {
  display: none; width: 44px; height: 44px;
  align-items: center; justify-content: center; border-radius: var(--radius-sm);
}
.nav-toggle:hover { background: var(--paper-2); }
.nav-toggle:focus-visible { outline: 3px solid var(--ember); outline-offset: 2px; }
.nav-toggle span {
  position: relative; width: 22px; height: 2px; background: var(--text);
  transition: background var(--t-fast) var(--ease);
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--text);
  transition: transform var(--t) var(--ease), top var(--t) var(--ease);
}
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after  { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { top: 0; transform: rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed; inset: var(--header-h) 0 0 0; z-index: 99;
  background: var(--ink);
  color: var(--on-ink);
  padding: var(--sp-4) var(--sp-3);
  display: flex; flex-direction: column; gap: var(--sp-1);
  transform: translateX(100%);
  transition: transform var(--t-slow) var(--ease);
  overflow-y: auto;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  font-family: var(--font-display); font-size: 1.6rem; font-weight: 500;
  color: var(--on-ink); padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--ink-3);
  display: flex; align-items: center; justify-content: space-between;
  transition: color var(--t) var(--ease), padding-left var(--t) var(--ease);
}
.mobile-menu a:hover { color: var(--ember-glow); padding-left: 8px; }
.mobile-menu .btn { margin-top: var(--sp-3); }
body.menu-open { overflow: hidden; }

/* ---------- 7. Footer ---------- */
.site-footer {
  position: relative; z-index: 2;
  background: var(--ink); color: var(--on-ink-soft);
  padding-block: var(--sp-6) var(--sp-4);
  margin-top: var(--sp-8);
}
.footer-grid {
  display: grid; gap: var(--sp-5);
  grid-template-columns: 1.4fr 1fr 1fr;
}
.site-footer h4 {
  color: var(--on-ink); font-family: var(--font-mono); font-weight: 400;
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  margin-bottom: var(--sp-2);
}
.site-footer a { color: var(--on-ink-soft); transition: color var(--t) var(--ease); }
.site-footer a:hover { color: var(--ember-glow); }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-brand .brand { color: var(--on-ink); }
.footer-brand .brand small { color: var(--on-ink-soft); }
.footer-brand p { margin-top: var(--sp-2); max-width: 36ch; font-size: var(--fs-small); }
.footer-bottom {
  margin-top: var(--sp-5); padding-top: var(--sp-3);
  border-top: 1px solid var(--ink-3);
  display: flex; justify-content: space-between; gap: var(--sp-2);
  flex-wrap: wrap; font-size: var(--fs-small);
}
.footer-bottom .legal { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* ---------- 8. Cards & surfaces ---------- */
.card {
  background: var(--paper);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius);
  padding: var(--sp-4);
  transition: transform var(--t) var(--ease),
              box-shadow var(--t) var(--ease),
              border-color var(--t) var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--paper-3); }

.surface-ink { background: var(--ink); color: var(--on-ink); }
.surface-ink h1, .surface-ink h2, .surface-ink h3 { color: var(--on-ink); }
.surface-ink .lead { color: var(--on-ink-soft); }
.surface-ink .eyebrow { color: #7FD4D2; }
.surface-ink .eyebrow::before { background: #7FD4D2; }
/* tags (pills) need stronger contrast on dark backgrounds */
.surface-ink .tag, .surface-ink .tag--ember, .surface-ink .tag--teal {
  background: color-mix(in srgb, #7FD4D2 16%, transparent);
  color: #9FE0DE;
  border-color: color-mix(in srgb, #7FD4D2 40%, transparent);
}

/* ---------- 9. Scroll reveal (Intersection Observer targets) ---------- */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn, .card, .link-arrow svg { transition: none !important; }
}

/* ---------- 10. Scroll progress bar ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%;
  transform: scaleX(0); transform-origin: left; z-index: 101;
  background: linear-gradient(90deg, var(--ember), var(--ember-glow));
}

/* ---------- 11. Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(22,19,15,0.55);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  display: grid; place-items: center; padding: var(--sp-3);
  opacity: 0; visibility: hidden;
  transition: opacity var(--t) var(--ease), visibility var(--t) var(--ease);
}
.modal-backdrop.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--paper); color: var(--text);
  width: 100%; max-width: 460px;
  border-radius: var(--radius-lg);
  padding: var(--sp-5) var(--sp-4) var(--sp-4);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--paper-3);
  transform: translateY(16px) scale(0.97);
  transition: transform var(--t-slow) var(--ease);
  text-align: center;
}
.modal-backdrop.open .modal { transform: none; }
.modal .modal-icon {
  width: 56px; height: 56px; margin: 0 auto var(--sp-3);
  border-radius: 50%; display: grid; place-items: center;
  background: color-mix(in srgb, var(--ember) 14%, transparent);
  color: var(--ember-deep);
}
.modal h3 { margin-bottom: var(--sp-1); }
.modal p { color: var(--text-soft); margin-bottom: var(--sp-4); }
.modal-actions { display: flex; gap: var(--sp-2); justify-content: center; flex-wrap: wrap; }
@media (prefers-reduced-motion: reduce) {
  .modal, .modal-backdrop { transition: opacity var(--t) linear; }
  .modal { transform: none; }
}

/* ---------- 12. Toasts ---------- */
.toast-region {
  position: fixed; right: var(--sp-3); bottom: var(--sp-3); z-index: 210;
  display: flex; flex-direction: column; gap: 0.6rem; max-width: min(360px, calc(100vw - 2rem));
}
.toast {
  display: flex; align-items: flex-start; gap: 0.7rem;
  background: var(--ink); color: var(--on-ink);
  border-radius: var(--radius); padding: 0.9rem 1rem;
  box-shadow: var(--shadow-lg);
  border-left: 3px solid var(--ok);
  transform: translateX(120%); opacity: 0;
  transition: transform var(--t-slow) var(--ease), opacity var(--t) var(--ease);
}
.toast.show { transform: none; opacity: 1; }
.toast.ok   { border-left-color: var(--ok); }
.toast.err  { border-left-color: var(--err); }
.toast.info { border-left-color: var(--teal-soft); }
.toast .t-icon { flex: 0 0 auto; margin-top: 1px; }
.toast .t-body { font-size: var(--fs-small); line-height: 1.4; }
.toast .t-body strong { color: #fff; display: block; margin-bottom: 1px; }
.toast .t-close { margin-left: auto; color: var(--on-ink-soft); padding: 2px; border-radius: 4px; }
.toast .t-close:hover { color: #fff; }
@media (prefers-reduced-motion: reduce) {
  .toast { transition: opacity var(--t) linear; transform: none; }
}

/* ---------- 13. Forms ---------- */
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: var(--sp-3); }
.field label { font-size: var(--fs-small); font-weight: 600; color: var(--text); }
.field label .req { color: var(--ember-deep); }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.8rem 1rem;
  background: var(--paper); border: 1.5px solid var(--paper-3);
  border-radius: var(--radius-sm); font-size: var(--fs-body);
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease), background var(--t) var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--ember);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ember) 18%, transparent);
}
.field.invalid input, .field.invalid textarea, .field.invalid select { border-color: var(--err); }
.field .error-msg {
  font-size: var(--fs-small); color: var(--err); min-height: 0;
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height var(--t) var(--ease), opacity var(--t) var(--ease), margin var(--t) var(--ease);
}
.field.invalid .error-msg { max-height: 3em; opacity: 1; margin-top: 2px; }
.field .hint { font-size: var(--fs-small); color: var(--text-faint); }

/* ---------- 14. Utility ---------- */
.grid { display: grid; gap: var(--sp-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.06em; text-transform: uppercase; padding: 0.3em 0.7em;
  border-radius: 100px; background: color-mix(in srgb, var(--clay) 12%, transparent);
  color: var(--clay-deep); border: 1px solid color-mix(in srgb, var(--clay) 26%, transparent);
}
.tag--ember, .tag--teal { background: color-mix(in srgb, var(--teal) 12%, transparent); color: var(--teal-deep);
  border-color: color-mix(in srgb, var(--teal) 26%, transparent); }
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 300;
  background: var(--ink); color: var(--on-ink); padding: 0.8rem 1.2rem; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }
.placeholder-note {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.04em;
  color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent);
  border: 1px dashed color-mix(in srgb, var(--warn) 40%, transparent);
  padding: 0.2em 0.6em; border-radius: 4px; display: inline-block;
}

/* real photo frames */
.photo-frame {
  margin: 0; overflow: hidden; border-radius: var(--radius);
  border: 1px solid var(--paper-3); box-shadow: var(--shadow);
  background: var(--ink-2);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-frame:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.surface-ink .photo-frame { border-color: var(--ink-3); }
@media (prefers-reduced-motion: reduce) { .photo-frame { transition: none; } }
.photo-frame--tall { aspect-ratio: 4 / 5; }
.photo-frame--wide { aspect-ratio: 16 / 10; }
.photo-frame--photo { aspect-ratio: 3 / 2; }

/* shared hero background glow (subpage page-heros; homepage overrides with its own) */
.page-hero .hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(900px 500px at 80% 10%, rgba(79,166,168,0.16), transparent 62%),
    radial-gradient(700px 460px at 5% 100%, rgba(10,92,99,0.20), transparent 60%);
}
.page-hero > .container { position: relative; z-index: 2; }

/* embedded map (contact page) */
.map-embed {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--ink-3); aspect-ratio: 16 / 10; background: var(--ink-2);
}
.map-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block;
  filter: grayscale(0.2) contrast(0.95); }

/* media placeholder boxes (swap with real images) */
.img-ph {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background:
    linear-gradient(135deg, var(--ink-2), var(--ink));
  border: 1px solid var(--ink-3);
  display: grid; place-items: center; aspect-ratio: 4 / 3;
  color: var(--on-ink-soft);
}
.img-ph .ph-label {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em;
  text-align: center; padding: 1rem; line-height: 1.5; max-width: 90%;
}
.img-ph .ph-label span { color: var(--ember-glow); display: block; margin-bottom: 4px; text-transform: uppercase; }

/* ---------- 15. Responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta.desktop-only { display: none; }
  .nav-toggle { display: inline-flex; }
}
@media (max-width: 640px) {
  :root { --header-h: 64px; }
  .section { padding-block: var(--sp-6); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .btn { width: 100%; }
  .btn.btn--inline { width: auto; }
  .hero-actions .btn { width: 100%; }
  .brand { font-size: 1.02rem; gap: 0.5rem; }
  .brand .mark { height: 32px; }
  .site-header .brand small { display: none; }
}
@media (max-width: 360px) {
  .brand { font-size: 0.92rem; }
  .brand .mark { height: 28px; }
}