/* ─────────────────────────────────────────────────────────────
   PUNEM UMĂRUL — self-contained stylesheet
   Strict tipografic. Mobile-first. Light default.
   Reuses RT design system tokens (rt-dark / rt-light).
   ─────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

/* ===== Tokens (same as marelesalt) ===== */
:root,
[data-theme="rt-dark"] {
  color-scheme: dark;
  --p:  76.7623% 0.104 131.063;  --pc: 18% 0.01 264;
  --s:  78% 0.05 264;
  --n:  28% 0.014 264;            --nc: 95% 0 0;
  --b1: 23.2% 0.014 264;
  --b2: 19.8% 0.013 264;
  --b3: 16.6% 0.011 264;
  --bc: 95% 0 0;
}
[data-theme="rt-light"] {
  color-scheme: light;
  --p:  76.7623% 0.104 131.063;     --pc: 33.3866% 0.040 131.063;
  --s:  64.5604% 0.046 26.3;
  --n:  35.5662% 0.027 256.848;     --nc: 98.4625% 0.001 247.838;
  --b1: 100% 0 0;
  --b2: 96.1151% 0 0;
  --b3: 92.2521% 0 0;
  --bc: 36.6531% 0.027 255.978;
}

:root {
  --rt-bg:        oklch(var(--b1));
  --rt-bg-2:      oklch(var(--b2));
  --rt-bg-3:      oklch(var(--b3));
  --rt-fg:        oklch(var(--bc));
  --rt-fg-2:      oklch(var(--bc) / .85);
  --rt-fg-3:      oklch(var(--bc) / .6);
  --rt-fg-4:      oklch(var(--bc) / .4);
  --rt-line:        oklch(var(--bc) / .14);
  --rt-line-strong: oklch(var(--bc) / .28);
  --rt-accent:      oklch(var(--p));
  --rt-accent-soft: oklch(var(--p) / .15);
  --rt-tint:        oklch(var(--bc) / .04);

  --rt-font-display: 'Libre Caslon Text', 'Times New Roman', Georgia, serif;
  --rt-font-sans:    'Figtree', system-ui, -apple-system, sans-serif;
  --rt-font-title:   'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --rt-font-body:    'Figtree', system-ui, -apple-system, sans-serif;
  --rt-font-mono:    'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --rt-text-xs: 12px;  --rt-text-sm: 14px;  --rt-text-base: 16px;
  --rt-text-md: 18px;  --rt-text-lg: 22px;  --rt-text-xl: 28px;
  --rt-text-2xl: 36px; --rt-text-3xl: 48px;

  --rt-tracking-snug: -0.015em;
  --rt-tracking-mono: 0.04em;

  --rt-space-1: 4px;  --rt-space-2: 8px;   --rt-space-3: 12px;
  --rt-space-4: 16px; --rt-space-5: 24px;  --rt-space-6: 32px;
  --rt-space-7: 48px; --rt-space-8: 64px;  --rt-space-9: 96px;

  --rt-radius-sm: 4px;  --rt-radius: 8px;  --rt-radius-lg: 12px;
  --rt-radius-pill: 999px;
  --rt-container: 760px;

  --rt-ease: cubic-bezier(0.32, 0.72, 0, 1);
  --rt-duration: 240ms;
}

/* ===== Reset ===== */
html, body { margin: 0; padding: 0; max-width: 100%; overflow-x: hidden; }
html {
  background: var(--rt-bg);
  color: var(--rt-fg);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  font-family: var(--rt-font-body);
  line-height: 1.55;
}
h1, h2, h3, h4, p, ul, ol { margin: 0; padding: 0; }
ol, ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

/* ===== Layout primitives ===== */
.rt-container {
  width: 100%;
  max-width: var(--rt-container);
  margin-inline: auto;
  padding-inline: var(--rt-space-6);
}
@media (max-width: 720px) { .rt-container { padding-inline: 20px; } }
@media (max-width: 420px) { .rt-container { padding-inline: 16px; } }

.rt-stack { display: flex; flex-direction: column; }
.rt-stack-2 { gap: var(--rt-space-2); }
.rt-stack-3 { gap: var(--rt-space-3); }
.rt-stack-4 { gap: var(--rt-space-4); }
.rt-stack-5 { gap: var(--rt-space-5); }
.rt-stack-6 { gap: var(--rt-space-6); }
.rt-stack-7 { gap: var(--rt-space-7); }

.rt-section {
  padding-block: var(--rt-space-9);
  border-top: 1px solid var(--rt-line);
}
.rt-section--first { border-top: 0; padding-top: var(--rt-space-8); }
@media (max-width: 720px) {
  .rt-section { padding-block: var(--rt-space-7); }
}

/* ===== Typography ===== */
.rt-eyebrow {
  display: flex;
  align-items: center;
  gap: var(--rt-space-3);
  width: 100%;
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-xs);
  font-weight: 500;
  letter-spacing: var(--rt-tracking-mono);
  text-transform: uppercase;
  color: var(--rt-fg-3);
}
.rt-eyebrow::before {
  content: "";
  width: 32px; height: 1px;
  background: var(--rt-fg-3);
  display: block;
  flex-shrink: 0;
}
.rt-eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rt-line);
  display: block;
}

.rt-h1 {
  font-family: var(--rt-font-title);
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--rt-fg);
  overflow-wrap: anywhere;
}
.rt-h2 {
  font-family: var(--rt-font-title);
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--rt-fg);
  position: relative;
  overflow-wrap: anywhere;
}
.rt-lead {
  font-family: var(--rt-font-body);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 450;
  line-height: 1.6;
  color: var(--rt-fg-2);
  max-width: 56ch;
}
.rt-body {
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-md);
  font-weight: 500;
  line-height: 1.6;
  color: var(--rt-fg-2);
  max-width: 64ch;
}
.rt-body em { font-style: italic; color: var(--rt-fg); }
.rt-mono {
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-xs);
  font-weight: 500;
  letter-spacing: var(--rt-tracking-mono);
  text-transform: uppercase;
  color: var(--rt-fg-3);
}
.rt-em-strong { font-weight: 700; color: var(--rt-fg); }
.rt-em-accent { color: var(--rt-accent); }

.rt-link {
  color: var(--rt-fg);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: var(--rt-line-strong);
  transition: text-decoration-color var(--rt-duration), color var(--rt-duration);
}
.rt-link:hover { color: var(--rt-accent); text-decoration-color: var(--rt-accent); }

/* ===== TOPBAR ===== */
.rt-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--rt-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rt-line);
  padding-top: env(safe-area-inset-top);
}
.rt-topbar-inner {
  max-width: var(--rt-container);
  margin-inline: auto;
  padding: var(--rt-space-4) var(--rt-space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--rt-space-3);
}
@media (max-width: 720px) { .rt-topbar-inner { padding-inline: 20px; } }
@media (max-width: 420px) { .rt-topbar-inner { padding-inline: 16px; } }

.um-topbar-formula {
  display: inline-flex;
  align-items: center;
  gap: var(--rt-space-3);
  text-decoration: none;
  color: var(--rt-fg);
  line-height: 1;
  min-width: 0;
  flex: 1;
}
.um-topbar-mark {
  width: 36px; height: 37px;
  color: var(--rt-fg);
  flex-shrink: 0;
  transition: color var(--rt-duration) var(--rt-ease);
}
.um-formula-op {
  font-family: var(--rt-font-mono);
  font-size: 18px;
  font-weight: 400;
  color: var(--rt-fg-3);
}
.um-formula-op--eq { color: var(--rt-accent); }
.um-formula-token {
  font-family: var(--rt-font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: var(--rt-tracking-snug);
  color: var(--rt-fg-2);
}
.um-formula-token--bold {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--rt-fg);
}
@media (max-width: 560px) {
  .um-topbar-formula { gap: 8px; }
  .um-topbar-mark { width: 28px; height: 29px; }
  .um-formula-token { font-size: 12px; }
  .um-formula-token--bold { font-size: 13px; }
  .um-formula-op { font-size: 16px; }
}

.um-topbar-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  background: transparent;
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-xs);
  letter-spacing: var(--rt-tracking-mono);
  text-transform: lowercase;
  color: var(--rt-fg-2);
  text-decoration: none;
  border: 1px solid var(--rt-line);
  border-radius: var(--rt-radius-pill);
  transition: color var(--rt-duration), border-color var(--rt-duration), background var(--rt-duration);
}
.um-topbar-contact:hover {
  color: var(--rt-accent);
  border-color: var(--rt-accent);
  background: var(--rt-tint);
}
.um-topbar-contact svg { flex-shrink: 0; width: 16px; height: 16px; }
@media (max-width: 560px) {
  .um-topbar-contact { padding: 0; width: 40px; justify-content: center; }
  .um-topbar-contact span {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
  }
}

/* ===== HERO ===== */
.um-hero { padding-top: var(--rt-space-8); }
.um-hero-title {
  max-width: 14ch;
  font-size: clamp(56px, 11vw, 120px);
}
.um-hero-lead { font-size: clamp(18px, 2.2vw, 24px); }

/* ===== PRINCIPLES ===== */
.um-principles {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rt-line);
}
.um-principles li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--rt-space-5);
  padding-block: var(--rt-space-6);
  border-bottom: 1px solid var(--rt-line);
}
.um-principle-num {
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-sm);
  letter-spacing: var(--rt-tracking-mono);
  color: var(--rt-fg-3);
  padding-top: 6px;
}
.um-principles--nope .um-principle-num {
  font-size: 20px;
  color: var(--rt-fg-4);
  padding-top: 2px;
}
.um-principle-body {
  display: flex;
  flex-direction: column;
  gap: var(--rt-space-2);
}
.um-principle-h {
  font-family: var(--rt-font-title);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--rt-fg);
}
.um-principle-body p {
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-md);
  font-weight: 450;
  line-height: 1.6;
  color: var(--rt-fg-2);
  max-width: 60ch;
}
@media (max-width: 560px) {
  .um-principles li { grid-template-columns: 1fr; gap: var(--rt-space-3); padding-block: var(--rt-space-5); }
  .um-principle-num { padding-top: 0; }
}

/* ===== LISTS (→ and ✕) ===== */
.um-list {
  display: flex;
  flex-direction: column;
  gap: var(--rt-space-3);
  max-width: 64ch;
}
.um-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: var(--rt-space-3);
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-md);
  line-height: 1.6;
  color: var(--rt-fg-2);
}
.um-list-mark {
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-md);
  color: var(--rt-fg-3);
  line-height: 1.6;
}
.um-list--cross .um-list-mark { color: var(--rt-fg-4); }
.um-list strong { font-weight: 700; color: var(--rt-fg); }

.um-list-aside {
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-md);
  font-style: italic;
  font-weight: 500;
  line-height: 1.55;
  color: var(--rt-fg-3);
  padding-left: calc(24px + var(--rt-space-3));
  max-width: 60ch;
  margin-top: var(--rt-space-3);
}
@media (max-width: 560px) {
  .um-list-aside { padding-left: 0; }
}

/* ===== CASES (cui am ajutat) ===== */
.um-cases {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rt-line);
}
.um-case {
  display: flex;
  flex-direction: column;
  gap: var(--rt-space-3);
  padding-block: var(--rt-space-6);
  border-bottom: 1px solid var(--rt-line);
}
.um-case-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--rt-space-3);
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-xs);
  letter-spacing: var(--rt-tracking-mono);
  text-transform: uppercase;
  color: var(--rt-fg-3);
}
.um-case-status { color: var(--rt-accent); }
.um-case-title {
  font-family: var(--rt-font-title);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--rt-fg);
}
.um-case-desc {
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-md);
  font-weight: 450;
  line-height: 1.6;
  color: var(--rt-fg-2);
  max-width: 60ch;
}
.um-case-motiv {
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-md);
  font-weight: 450;
  font-style: italic;
  line-height: 1.55;
  color: var(--rt-fg-2);
  border-left: 2px solid var(--rt-accent);
  padding: 2px 0 2px var(--rt-space-4);
  max-width: 58ch;
  margin-top: var(--rt-space-2);
}
.um-case-motiv-label {
  display: inline-block;
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-xs);
  font-weight: 500;
  font-style: normal;
  letter-spacing: var(--rt-tracking-mono);
  text-transform: uppercase;
  color: var(--rt-accent);
  margin-right: 8px;
}
.um-case-meta-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--rt-space-3);
  flex-wrap: wrap;
  padding-top: var(--rt-space-2);
}
.um-case-action {
  display: inline-flex;
  align-items: center;
  gap: var(--rt-space-2);
  align-self: flex-start;
  margin-top: var(--rt-space-2);
  padding: 10px 18px;
  font-family: var(--rt-font-sans);
  font-size: var(--rt-text-base);
  font-weight: 700;
  letter-spacing: var(--rt-tracking-snug);
  color: var(--rt-bg);
  background: var(--rt-fg);
  border-radius: var(--rt-radius-pill);
  text-decoration: none;
  transition: background var(--rt-duration) var(--rt-ease),
              transform var(--rt-duration) var(--rt-ease);
}
.um-case-action:hover {
  background: var(--rt-accent);
  color: var(--rt-bg);
  transform: translateY(-1px);
}
.um-case-action span { display: inline-block; transition: transform var(--rt-duration) var(--rt-ease); }
.um-case-action:hover span { transform: translateX(3px); }

/* ===== QUIET SECTIONS (alt bg subtle) ===== */
.um-section--quiet { background: var(--rt-bg-2); }

/* ===== CTAs ===== */
.um-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--rt-space-3);
  align-items: center;
}
.um-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--rt-space-2);
  padding: 12px 22px;
  font-family: var(--rt-font-sans);
  font-size: var(--rt-text-base);
  font-weight: 600;
  line-height: 1;
  letter-spacing: var(--rt-tracking-snug);
  border-radius: var(--rt-radius-pill);
  border: 1px solid transparent;
  text-decoration: none;
  min-height: 44px;
  transition: background var(--rt-duration), color var(--rt-duration), border-color var(--rt-duration), transform var(--rt-duration);
}
.um-btn--primary {
  background: var(--rt-fg);
  color: var(--rt-bg);
  border-color: var(--rt-fg);
}
.um-btn--primary:hover {
  background: var(--rt-fg-2);
  transform: translateY(-1px);
}
.um-btn--ghost {
  background: transparent;
  color: var(--rt-fg);
  border-color: var(--rt-line-strong);
}
.um-btn--ghost:hover {
  border-color: var(--rt-fg);
  background: var(--rt-tint);
}
@media (max-width: 560px) {
  .um-cta-row .um-btn { width: 100%; justify-content: center; padding: 11px 18px; font-size: var(--rt-text-sm); }
}

/* ===== Heading anchor links ===== */
.rt-h2 { position: relative; }
.rt-h-anchor {
  display: inline-flex;
  align-items: center;
  margin-left: var(--rt-space-3);
  width: 1em; height: 1em;
  font-family: var(--rt-font-mono);
  font-size: 0.5em;
  color: var(--rt-fg-4);
  text-decoration: none;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--rt-duration), transform var(--rt-duration), color var(--rt-duration);
  vertical-align: middle;
  position: relative;
  top: -0.15em;
}
.rt-h2:hover .rt-h-anchor { opacity: 1; transform: translateX(0); }
.rt-h-anchor:hover { color: var(--rt-accent); }
.rt-h-anchor-feedback {
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  font-size: 1em;
  white-space: nowrap;
  color: var(--rt-accent);
  opacity: 0;
  pointer-events: none;
}
.rt-h-anchor.is-copied .rt-h-anchor-hash { opacity: 0; }
.rt-h-anchor.is-copied .rt-h-anchor-feedback { opacity: 1; }
@media (hover: none) { .rt-h-anchor { opacity: .5; transform: none; } }

/* ===== FOOTER ===== */
.um-footer {
  border-top: 1px solid var(--rt-line);
  padding-block: var(--rt-space-7);
  padding-bottom: max(var(--rt-space-7), env(safe-area-inset-bottom));
}
.um-footer-inner {
  max-width: var(--rt-container);
  margin-inline: auto;
  padding-inline: var(--rt-space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--rt-space-5);
  flex-wrap: wrap;
  font-family: var(--rt-font-body);
  font-size: var(--rt-text-sm);
  color: var(--rt-fg-3);
}
.um-footer-left p { margin: 0 0 4px; }
.um-footer-contact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: right;
  font-family: var(--rt-font-mono);
  font-size: var(--rt-text-sm);
  letter-spacing: var(--rt-tracking-mono);
}
@media (max-width: 720px) {
  .um-footer-inner { padding-inline: 20px; }
}
@media (max-width: 560px) {
  .um-footer-inner { flex-direction: column; align-items: flex-start; }
  .um-footer-contact { text-align: left; }
}
@media (max-width: 420px) {
  .um-footer-inner { padding-inline: 16px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .um-btn, .rt-h-anchor, .um-topbar-contact, .rt-link { transition: none; }
}

/* ── Grain film over the whole viewport ─── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: url('assets/grain-i.png?v=2') repeat;
  background-size: 270px 270px;
  opacity: .15;
}
[data-theme="rt-dark"] body::after {
  background-image: url('assets/grain-w.png?v=2');
  opacity: .10;
}