/* ==========================================================================
   Mana Bargh Parsian — design system, v2 "quiet premium"
   One material (deep steel), one light source (azure), generous space.
   Typography carries the hierarchy; hairlines replace boxes. RTL-native.
   ========================================================================== */

/* ----------------------------------------------------------------- fonts */
@font-face { font-family: 'Vazirmatn'; src: url('/assets/fonts/vazirmatn-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Vazirmatn'; src: url('/assets/fonts/vazirmatn-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Vazirmatn'; src: url('/assets/fonts/vazirmatn-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Vazirmatn'; src: url('/assets/fonts/vazirmatn-800.woff2') format('woff2'); font-weight: 800; font-display: swap; }
@font-face { font-family: 'Archivo'; src: url('/assets/fonts/archivo-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Archivo'; src: url('/assets/fonts/archivo-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Archivo'; src: url('/assets/fonts/archivo-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Archivo'; src: url('/assets/fonts/archivo-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
/* variable Archivo carries weight + width axes -> refined display via font-stretch */
@font-face { font-family: 'Archivo Expanded'; src: url('/assets/fonts/archivo-var.woff2') format('woff2-variations'); font-weight: 100 900; font-stretch: 62.5% 125%; font-display: swap; }

/* ---------------------------------------------------------------- tokens */
:root {
  /* steel ramp */
  --ink-950: oklch(0.16 0.026 245);
  --ink-900: oklch(0.20 0.028 245);
  --ink-850: oklch(0.235 0.028 245);
  --ink-800: oklch(0.26 0.028 245);
  --ink-700: oklch(0.33 0.026 245);
  --ink-600: oklch(0.45 0.022 245);
  --ink-500: oklch(0.57 0.018 245);
  --ink-300: oklch(0.80 0.012 245);
  --paper:   oklch(0.97 0.004 245);
  --white:   oklch(1 0 0);
  --surface-gray: oklch(0.967 0.004 245);

  /* light */
  --accent:    oklch(0.66 0.155 255);
  --accent-hi: oklch(0.72 0.165 255);
  --accent-dk: oklch(0.49 0.16 257);
  --accent-sm: oklch(0.66 0.155 255 / 0.14);
  --voltage:   oklch(0.80 0.13 210);
  --good:      oklch(0.72 0.15 150);
  --bad:       oklch(0.62 0.18 25);

  /* semantic (dark default) */
  --bg: var(--ink-950);
  --surface: var(--ink-900);
  --surface-2: var(--ink-800);
  --border: var(--ink-700);
  --line: color-mix(in oklch, var(--paper) 9%, transparent);
  --line-light: oklch(0.905 0.005 245);
  --text: var(--paper);
  --text-muted: var(--ink-300);
  --text-faint: var(--ink-500);
  --link: var(--voltage);

  /* type */
  --font-sans: 'Vazirmatn', 'Segoe UI', Tahoma, system-ui, sans-serif;
  --font-display: 'Vazirmatn', 'Segoe UI', Tahoma, system-ui, sans-serif;
  --display-weight: 700;

  --step--1: clamp(0.83rem, 0.80rem + 0.15vw, 0.90rem);
  --step-0:  clamp(1.00rem, 0.96rem + 0.20vw, 1.08rem);
  --step-1:  clamp(1.22rem, 1.12rem + 0.5vw, 1.42rem);
  --step-2:  clamp(1.55rem, 1.35rem + 1.0vw, 2.05rem);
  --step-3:  clamp(1.95rem, 1.60rem + 1.8vw, 2.95rem);
  --step-4:  clamp(2.45rem, 1.90rem + 2.9vw, 4.35rem);

  /* space */
  --sp-1: 0.5rem;  --sp-2: 0.75rem; --sp-3: 1rem;   --sp-4: 1.5rem;
  --sp-5: 2rem;    --sp-6: 3rem;    --sp-7: 4rem;    --sp-8: 6rem;
  --section-y: clamp(4.5rem, 10vh, 8.5rem);
  --container: 1180px;
  --gutter: clamp(1.1rem, 4vw, 2.5rem);

  /* material */
  --radius: 12px;
  --radius-lg: 24px;
  --radius-pill: 980px;
  --shadow-soft: 0 1px 2px oklch(0.2 0.02 245 / 0.05), 0 12px 32px -8px oklch(0.2 0.02 245 / 0.10);
  --shadow-lift: 0 2px 6px oklch(0.2 0.02 245 / 0.06), 0 24px 56px -16px oklch(0.2 0.02 245 / 0.16);
  --shadow-deep: 0 32px 90px -28px oklch(0.08 0.03 245 / 0.55);

  /* z-scale */
  --z-header: 100; --z-menu: 200; --z-totop: 90;

  --ease: cubic-bezier(0.32, 0.72, 0, 1); /* sheet ease — decisive, no bounce */
}

/* Latin locales: Archivo, near-normal width, quiet tracking */
html[lang="en"], html[lang="de"] {
  --font-sans: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Archivo Expanded', 'Archivo', system-ui, sans-serif;
  --display-weight: 640;
}

/* --------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: color-mix(in oklch, var(--accent) 30%, transparent); }

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.14; font-weight: var(--display-weight); text-wrap: balance; letter-spacing: -0.015em; }
html[lang="en"] :is(h1,h2,h3,h4), html[lang="de"] :is(h1,h2,h3,h4) { letter-spacing: -0.02em; font-stretch: 103%; }
p { text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
ul { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--voltage); outline-offset: 3px; border-radius: 4px; }

.container { inline-size: min(100% - var(--gutter) * 2, var(--container)); margin-inline: auto; }

.section { padding-block: var(--section-y); }
.section--light { background: var(--white); color: var(--ink-900); }
.section--light .section__intro { color: var(--ink-600); }

.section__head { max-inline-size: 60ch; margin-block-end: clamp(2.5rem, 6vw, 4.5rem); }
.section__head--row { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap; max-inline-size: none; }
.section__title { font-size: var(--step-3); }
.section__intro { font-size: var(--step-1); color: var(--text-muted); margin-block-start: var(--sp-3); font-weight: 400; line-height: 1.55; }

/* --------------------------------------------------------------- buttons */
.btn {
  --btn-py: 0.72em; --btn-px: 1.6em;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  font-family: var(--font-sans); font-weight: 600; font-size: var(--step-0);
  padding: var(--btn-py) var(--btn-px);
  border-radius: var(--radius-pill); border: 1px solid transparent;
  cursor: pointer; line-height: 1; white-space: nowrap;
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease), color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.btn--sm { font-size: var(--step--1); --btn-py: 0.62em; --btn-px: 1.2em; }
.btn--lg { --btn-py: 0.9em; --btn-px: 2em; font-size: var(--step-1); }
.btn--primary { background: var(--accent); color: var(--ink-950); box-shadow: 0 10px 30px -14px var(--accent); }
.btn--primary:hover { background: var(--accent-hi); box-shadow: 0 14px 36px -14px var(--accent); }
.btn--primary:active { transform: scale(0.985); }
.btn--ghost { background: transparent; border-color: color-mix(in oklch, currentColor 26%, transparent); color: currentColor; }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.section--light .btn--ghost { color: var(--ink-800); }
.section--light .btn--ghost:hover { color: var(--accent-dk); border-color: var(--accent-dk); }

.ico { flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
[dir="rtl"] .ico--rtl { transform: scaleX(-1); }
.ico--back { transform: scaleX(-1); }
[dir="rtl"] .ico--back { transform: none; }

/* credential chip — a whisper, not a badge */
.chip {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-size: var(--step--1); font-weight: 600; letter-spacing: 0.02em;
  color: var(--accent);
}
.chip .ico { stroke: var(--accent); }
.chip--light { color: var(--accent-dk); }
.chip--light .ico { stroke: var(--accent-dk); }

/* --------------------------------------------------------------- header */
.skip-link { position: fixed; inset-block-start: -60px; inset-inline-start: var(--sp-3); z-index: 300; background: var(--accent); color: var(--ink-950); padding: 0.6em 1.2em; border-radius: var(--radius-pill); transition: inset-block-start 0.25s var(--ease); }
.skip-link:focus { inset-block-start: var(--sp-3); }

.site-header { position: sticky; inset-block-start: 0; z-index: var(--z-header); background: color-mix(in oklch, var(--ink-950) 62%, transparent); -webkit-backdrop-filter: blur(20px) saturate(1.5); backdrop-filter: blur(20px) saturate(1.5); border-block-end: 1px solid transparent; transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease); }
.site-header.is-scrolled { background: color-mix(in oklch, var(--ink-950) 84%, transparent); border-block-end-color: var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); min-block-size: 72px; }

.brand { display: inline-flex; align-items: center; gap: 0.7em; color: var(--paper); }
.brand__mark { color: var(--accent); flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; letter-spacing: -0.01em; }
.brand__tag { font-size: 0.7rem; color: var(--text-faint); letter-spacing: 0.02em; }

.nav { display: flex; align-items: center; gap: clamp(0.5rem, 2vw, 1.75rem); }
.nav__links { display: flex; align-items: center; gap: clamp(0.4rem, 1.8vw, 1.6rem); }
.nav__link { position: relative; padding: 0.4em 0.1em; color: var(--text-muted); font-weight: 500; font-size: var(--step--1); transition: color 0.3s var(--ease); }
.nav__link::after { content: ''; position: absolute; inset-block-end: 0; inset-inline-start: 50%; inline-size: 0; block-size: 1.5px; background: var(--accent); transition: inline-size 0.35s var(--ease), inset-inline-start 0.35s var(--ease); }
.nav__link:hover, .nav__link.is-active { color: var(--paper); }
.nav__link.is-active::after, .nav__link:hover::after { inline-size: 100%; inset-inline-start: 0; }
.nav__actions { display: flex; align-items: center; gap: var(--sp-3); }

.nav-toggle { display: none; }

/* language switcher */
.lang { position: relative; }
.lang > summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 0.5em; padding: 0.5em 0.9em; border: 1px solid var(--line); border-radius: var(--radius-pill); color: var(--text-muted); font-size: var(--step--1); font-weight: 500; transition: color 0.3s var(--ease), border-color 0.3s var(--ease); }
.lang > summary::-webkit-details-marker { display: none; }
.lang > summary:hover { color: var(--paper); border-color: color-mix(in oklch, var(--paper) 25%, transparent); }
.lang__flag { color: var(--accent); }
.lang__chev { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform 0.3s var(--ease); }
.lang[open] .lang__chev { transform: rotate(180deg); }
.lang__menu { position: absolute; inset-block-start: calc(100% + 10px); inset-inline-end: 0; min-inline-size: 168px; background: color-mix(in oklch, var(--ink-850) 92%, transparent); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-deep); padding: 0.4rem; z-index: var(--z-menu); }
.lang__menu a { display: block; padding: 0.55em 0.9em; border-radius: 10px; color: var(--text-muted); font-size: var(--step--1); transition: background-color 0.25s var(--ease), color 0.25s var(--ease); }
.lang__menu a:hover { background: color-mix(in oklch, var(--paper) 7%, transparent); color: var(--paper); }
.lang__menu a[aria-current="true"] { color: var(--accent); font-weight: 600; }

/* --------------------------------------------------------------- hero */
.hero { position: relative; overflow: hidden; display: flex; align-items: center; min-block-size: calc(100svh - 72px); padding-block: clamp(1.5rem, 4vh, 3rem); background: var(--ink-950); }
.hero__scene { position: absolute; inset: 0; pointer-events: none; }
.hero__aurora { position: absolute; inset: -25%;
  background:
    radial-gradient(42% 34% at 74% 18%, oklch(0.42 0.10 255 / 0.30), transparent 70%),
    radial-gradient(55% 42% at 22% 88%, oklch(0.30 0.05 245 / 0.55), transparent 72%),
    radial-gradient(30% 26% at 86% 76%, oklch(0.60 0.14 255 / 0.12), transparent 70%);
  filter: blur(46px);
}
.hero__horizon { position: absolute; inset-inline: 0; inset-block-end: 0; block-size: 1px; background: linear-gradient(90deg, transparent, color-mix(in oklch, var(--accent) 38%, transparent) 25%, color-mix(in oklch, var(--accent) 38%, transparent) 75%, transparent); }
.hero__pulse { position: absolute; inset-block-start: -1px; inset-inline-start: -12%; inline-size: 110px; block-size: 3px; border-radius: 3px; background: linear-gradient(90deg, transparent, var(--accent), transparent); filter: drop-shadow(0 0 10px var(--accent)); animation: pulse-run 8s var(--ease) infinite; }
@keyframes pulse-run { from { inset-inline-start: -12%; } to { inset-inline-start: 112%; } }

.hero__inner { position: relative; max-inline-size: 64ch; }
.hero__kicker { display: inline-flex; align-items: center; gap: 0.6em; font-size: var(--step--1); font-weight: 600; letter-spacing: 0.05em; color: var(--accent); }
.hero__kicker-dot { inline-size: 7px; block-size: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-sm); }
.hero__title { font-size: clamp(2.05rem, 1.5rem + 2.3vw, 3.5rem); margin-block: clamp(0.75rem, 2vh, 1.2rem) clamp(0.85rem, 2.2vh, 1.35rem); letter-spacing: -0.02em; }
/* Latin: longer words, so quieter scale — first fold stays complete */
html[lang="en"] .hero__title, html[lang="de"] .hero__title { font-size: clamp(1.7rem, 1.25rem + 1.8vw, 2.75rem); font-stretch: 101%; font-weight: 620; line-height: 1.1; letter-spacing: -0.022em; }
.hero__subtitle { font-size: clamp(1rem, 0.95rem + 0.4vw, 1.18rem); color: var(--text-muted); font-weight: 400; line-height: 1.65; max-inline-size: 56ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-block-start: clamp(1.25rem, 3vh, 2rem); }
.hero__note { display: inline-flex; align-items: center; gap: 0.5em; margin-block-start: clamp(0.85rem, 2vh, 1.25rem); color: var(--text-faint); font-size: var(--step--1); }
.hero__note .ico { stroke: var(--accent); }

/* --------------------------------------------------------------- stats */
.stats { background: var(--ink-950); border-block: 1px solid var(--line); }
.stats__row { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: clamp(2rem, 4.5vw, 3rem) var(--sp-4); text-align: center; border-inline-start: 1px solid var(--line); }
.stat:first-child { border-inline-start: none; }
.stat__value { font-family: var(--font-display); font-weight: var(--display-weight); font-size: clamp(2.1rem, 4vw, 3.1rem); color: var(--paper); line-height: 1; letter-spacing: -0.03em; }
.stat__plus { color: var(--accent); }
.stat__label { margin-block-start: 0.7em; color: var(--text-faint); font-size: var(--step--1); line-height: 1.4; }

/* --------------------------------------------------------------- partners: dim logo marquee */
/* Forced LTR so the drift is right-to-left in every locale, as one continuous belt. */
.marquee { position: relative; direction: ltr; overflow: hidden; padding-block: var(--sp-4);
  --marquee-gap: clamp(3.5rem, 7vw, 6rem);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track { display: flex; inline-size: max-content; animation: marquee-drift 42s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__set { display: flex; align-items: stretch; gap: var(--marquee-gap); padding-inline-end: var(--marquee-gap); }
@keyframes marquee-drift { to { transform: translateX(-50%); } }

.brandmark { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 0.9rem; margin: 0; }
.brandmark__logo { block-size: 52px; display: flex; align-items: center; justify-content: center; }
.brandmark__logo img { max-block-size: 52px; max-inline-size: 170px; inline-size: auto; block-size: auto; object-fit: contain; filter: grayscale(1) opacity(0.45); transition: filter 0.5s var(--ease); }
.brandmark--featured .brandmark__logo img { filter: grayscale(0) opacity(0.8); }
.brandmark:hover .brandmark__logo img { filter: none; }
.brandmark__cap { display: flex; align-items: baseline; gap: 0.6em; white-space: nowrap; font-size: 0.72rem; color: var(--ink-500); }
.brandmark__name { font-weight: 600; color: var(--ink-600); }
.brandmark__role { font-weight: 500; letter-spacing: 0.03em; }
.brandmark--featured .brandmark__role { color: var(--accent-dk); font-weight: 600; }

/* --------------------------------------------------------------- feature bands */
.feature__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2.5rem, 6vw, 5.5rem); align-items: center; }
.feature__content { max-inline-size: 54ch; }
.feature__title { font-size: var(--step-2); margin-block: var(--sp-3) var(--sp-3); }
.feature__lead { font-size: var(--step-1); font-weight: 500; line-height: 1.55; margin-block-end: var(--sp-3); }
.feature--schneider .feature__lead { color: var(--paper); }
.feature__body { color: var(--text-muted); margin-block-end: var(--sp-5); }
.feature--parsfanal .feature__lead { color: var(--ink-900); }
.feature--parsfanal .feature__body { color: var(--ink-600); }

/* schneider: the one dark, immersive moment in the light flow */
.feature--schneider { background: linear-gradient(180deg, var(--ink-900), var(--ink-950)); }

.panel { background: var(--ink-900); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.75rem, 3.5vw, 2.75rem); }
.panel--light { background: var(--white); border: none; box-shadow: var(--shadow-deep); }
.section--light .panel--light { background: var(--surface-gray); box-shadow: none; }
.panel__brand { padding-block-end: var(--sp-4); margin-block-end: var(--sp-4); border-block-end: 1px solid var(--line-light); }
.panel__brand img { block-size: 44px; inline-size: auto; }
.panel__list { display: flex; flex-direction: column; gap: var(--sp-3); }
.panel__list li { display: flex; align-items: flex-start; gap: 0.75em; font-size: var(--step-0); line-height: 1.5; color: var(--ink-800); }
.panel__list .ico { stroke: var(--accent); margin-block-start: 0.18em; }

/* --------------------------------------------------------------- clients: quiet gray gallery */
.clients.section--light { background: var(--surface-gray); }
.client-wall { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: clamp(1.5rem, 3vw, 2.5rem) var(--sp-4); align-items: end; }
.client { display: flex; flex-direction: column; align-items: center; gap: var(--sp-3); text-align: center; padding-block: var(--sp-3); }
/* no opacity here: a <1 opacity parent isolates the blend group and
   resurrects white logo backgrounds */
.client__mark { block-size: 64px; display: flex; align-items: center; justify-content: center; }
/* multiply melts white logo backgrounds into the gray band */
.client__mark img { max-block-size: 64px; max-inline-size: 132px; inline-size: auto; block-size: auto; object-fit: contain; mix-blend-mode: multiply; }
/* the Isfahan Cement mark is white-on-transparent: invert it to read on light */
.client__mark img[src*="isfahancement"] { filter: invert(0.82); }
.client__cap { font-size: var(--step--1); font-weight: 600; color: var(--ink-600); }

/* --------------------------------------------------------------- capabilities */
.caps { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 4vw, 3.5rem) clamp(2rem, 5vw, 4.5rem); }
.cap { border-block-start: 1px solid var(--line-light); padding-block-start: var(--sp-4); }
.cap__num { font-family: var(--font-display); font-weight: 600; color: var(--accent-dk); font-size: var(--step--1); letter-spacing: 0.06em; }
.cap__title { font-size: var(--step-1); margin-block: var(--sp-2) var(--sp-2); color: var(--ink-900); }
.cap__body { color: var(--ink-600); font-size: var(--step-0); max-inline-size: 46ch; }

.blog-teaser.section--light { background: var(--surface-gray); }

/* --------------------------------------------------------------- cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: clamp(1.5rem, 3vw, 2.25rem); }
.cards--list { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.card { display: flex; flex-direction: column; background: var(--ink-900); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease); }
.section--light .card { background: var(--white); border: none; box-shadow: var(--shadow-soft); }
.card:hover { transform: translateY(-5px); }
.section--light .card:hover { box-shadow: var(--shadow-lift); }
.card__media { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--ink-850); }
.card__media img { inline-size: 100%; block-size: 100%; object-fit: cover; transition: transform 0.8s var(--ease); }
.card:hover .card__media img { transform: scale(1.035); }
.card__body { padding: clamp(1.25rem, 2.5vw, 1.75rem); display: flex; flex-direction: column; gap: var(--sp-2); flex: 1; }
.card__meta { display: flex; align-items: center; gap: 0.75em; font-size: var(--step--1); color: var(--text-faint); }
.section--light .card__meta { color: var(--ink-500); }
.card__tag { color: var(--accent-dk); font-weight: 600; }
.card__title { font-size: var(--step-1); line-height: 1.3; }
.section--light .card__title { color: var(--ink-900); }
.card__title a:hover { color: var(--accent-dk); }
.card__excerpt { color: var(--text-muted); font-size: var(--step-0); flex: 1; }
.section--light .card__excerpt { color: var(--ink-600); }
.card__more { display: inline-flex; align-items: center; gap: 0.4em; margin-block-start: auto; color: var(--accent-dk); font-weight: 600; font-size: var(--step--1); transition: gap 0.35s var(--ease); }
.card__more:hover { gap: 0.7em; }

/* --------------------------------------------------------------- cta band */
.cta-band { background: linear-gradient(160deg, var(--ink-900), var(--ink-950) 70%); border-block: 1px solid var(--line); padding-block: clamp(3.5rem, 8vw, 6rem); position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset-block: -40%; inset-inline-end: -10%; inline-size: 55%; background: radial-gradient(closest-side, oklch(0.5 0.12 255 / 0.16), transparent); filter: blur(30px); pointer-events: none; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-5); flex-wrap: wrap; position: relative; }
.cta-band__title { font-size: var(--step-2); max-inline-size: 26ch; }
.cta-band__body { color: var(--text-muted); margin-block-start: var(--sp-2); max-inline-size: 52ch; }

/* --------------------------------------------------------------- footer */
.site-footer { background: var(--ink-950); border-block-start: 1px solid var(--line); padding-block: var(--sp-7) var(--sp-5); }
.site-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1.4fr; gap: clamp(2rem, 5vw, 4rem); }
.site-footer__about { color: var(--text-faint); margin-block-start: var(--sp-3); max-inline-size: 40ch; font-size: var(--step--1); line-height: 1.65; }
.brand--footer { margin-block-end: var(--sp-2); }
.site-footer__h { font-family: var(--font-sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: var(--text-faint); margin-block-end: var(--sp-3); }
.site-footer__list { display: flex; flex-direction: column; gap: var(--sp-2); }
.site-footer__list a { color: var(--text-muted); font-size: var(--step--1); transition: color 0.3s var(--ease); }
.site-footer__list a:hover { color: var(--accent); }
.site-footer__list--contact li { display: flex; flex-direction: column; gap: 0.15em; }
.site-footer__k { font-size: 0.7rem; color: var(--text-faint); }
.site-footer__v { color: var(--text-muted); font-size: var(--step--1); }
.site-footer__v a:hover { color: var(--accent); }
.site-footer__bottom { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap; margin-block-start: var(--sp-6); padding-block-start: var(--sp-4); border-block-start: 1px solid var(--line); }
.site-footer__disclaimer { color: var(--text-faint); font-size: 0.7rem; max-inline-size: 64ch; line-height: 1.5; }
.site-footer__copy { color: var(--text-faint); font-size: var(--step--1); white-space: nowrap; }

/* --------------------------------------------------------------- inner-page hero */
.page-hero { padding-block: clamp(3rem, 9vh, 5.5rem) clamp(2.25rem, 6vh, 4rem); background: var(--ink-950); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: -30% -10%; background: radial-gradient(40% 45% at 80% 0%, oklch(0.42 0.09 255 / 0.18), transparent 70%); filter: blur(40px); pointer-events: none; }
.page-hero > .container { position: relative; }
.crumbs { display: flex; align-items: center; gap: 0.6em; font-size: var(--step--1); color: var(--text-faint); margin-block-end: var(--sp-3); flex-wrap: wrap; }
.crumbs a:hover { color: var(--accent); }
.crumbs [aria-current] { color: var(--text-muted); }
.page-hero__title { font-size: var(--step-3); }
.page-hero__intro { color: var(--text-muted); font-size: var(--step-1); font-weight: 400; margin-block-start: var(--sp-3); max-inline-size: 58ch; }

/* --------------------------------------------------------------- contact */
.contact__grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: start; }
.contact__h { font-size: var(--step-2); color: var(--ink-900); margin-block-end: var(--sp-4); }

.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
.field { display: flex; flex-direction: column; gap: 0.45em; margin-block-end: var(--sp-4); }
.field label { font-size: var(--step--1); font-weight: 600; color: var(--ink-800); }
.field__req { color: var(--bad); font-weight: 500; }
.field input, .field textarea { font-family: var(--font-sans); font-size: var(--step-0); color: var(--ink-900); background: var(--white); border: 1px solid var(--line-light); border-radius: var(--radius); padding: 0.78em 1em; transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-sm); }
.field textarea { resize: vertical; min-block-size: 130px; }
.field.is-invalid input, .field.is-invalid textarea { border-color: var(--bad); }
.field__error { color: var(--bad); font-size: var(--step--1); }
.form__note { font-size: var(--step--1); color: var(--ink-500); background: var(--surface-gray); border-radius: var(--radius); padding: 0.9em 1.1em; margin-block: var(--sp-2) var(--sp-4); }
.form__actions { display: flex; align-items: center; gap: var(--sp-4); flex-wrap: wrap; }
.form__success { color: var(--good); font-weight: 600; font-size: var(--step-0); }
.form__hp { position: absolute; inset-inline-start: -9999px; inline-size: 1px; block-size: 1px; overflow: hidden; }

.contact__channels { background: var(--ink-950); color: var(--paper); border-radius: var(--radius-lg); padding: clamp(1.75rem, 3.5vw, 2.5rem); position: sticky; inset-block-start: 92px; box-shadow: var(--shadow-deep); }
.contact__channels .contact__h { color: var(--paper); }
.channels { display: flex; flex-direction: column; gap: var(--sp-4); }
.channel { display: flex; gap: 0.9em; align-items: flex-start; }
.channel__ico { color: var(--accent); stroke: var(--accent); fill: none; stroke-width: 1.8; flex: none; margin-block-start: 0.15em; }
.channel div { display: flex; flex-direction: column; gap: 0.15em; }
.channel__k { font-size: 0.7rem; color: var(--text-faint); }
.channel__v { color: var(--paper); font-size: var(--step-0); }
a.channel__v:hover { color: var(--accent); }
.map { margin-block-start: var(--sp-5); }
.map__placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5em; text-align: center; aspect-ratio: 16 / 10; border: 1px solid var(--line); border-radius: var(--radius); color: var(--text-faint); background: color-mix(in oklch, var(--paper) 3%, transparent); }
.map__placeholder svg { color: var(--accent); stroke: var(--accent); fill: none; stroke-width: 1.8; }
.map__title { color: var(--text-muted); font-weight: 600; }
.map__note { font-size: 0.72rem; }

/* --------------------------------------------------------------- article */
.article__header { background: var(--ink-950); position: relative; overflow: hidden; border-block-end: 1px solid var(--line); padding-block: clamp(2.75rem, 8vh, 5rem) clamp(2.25rem, 6vh, 3.5rem); }
.article__header::before { content: ''; position: absolute; inset: -30% -10%; background: radial-gradient(40% 45% at 80% 0%, oklch(0.42 0.09 255 / 0.16), transparent 70%); filter: blur(40px); pointer-events: none; }
.article__header-inner { max-inline-size: 52rem; position: relative; }
.article__tags { display: flex; gap: 0.5em; margin-block-end: var(--sp-3); }
.article__tags .card__tag { color: var(--accent); font-size: var(--step--1); font-weight: 600; }
.article__title { font-size: var(--step-3); max-inline-size: 26ch; }
.article__excerpt { color: var(--text-muted); font-size: var(--step-1); font-weight: 400; margin-block-start: var(--sp-3); max-inline-size: 60ch; }
.article__meta { display: flex; align-items: center; gap: 0.75em; flex-wrap: wrap; margin-block-start: var(--sp-4); color: var(--text-faint); font-size: var(--step--1); }
.article__cover { margin-block: clamp(-2rem, -4vw, -3rem) 0; position: relative; z-index: 1; }
.article__cover img { inline-size: 100%; border-radius: var(--radius-lg); aspect-ratio: 21 / 10; object-fit: cover; box-shadow: var(--shadow-deep); }
.article__layout { padding-block: clamp(3rem, 7vw, 4.5rem); }
.prose { max-inline-size: 44rem; margin-inline: auto; font-size: var(--step-1); line-height: 1.85; color: var(--text-muted); }
.prose > * + * { margin-block-start: 1.4em; }
.prose h2 { font-size: var(--step-2); color: var(--paper); margin-block-start: 1.8em; }
.prose h3 { font-size: var(--step-1); color: var(--paper); margin-block-start: 1.6em; }
.prose p { color: var(--text-muted); }
.prose strong { color: var(--paper); font-weight: 700; }
.prose a { color: var(--voltage); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-inline-start: 1.3em; display: flex; flex-direction: column; gap: 0.6em; }
.prose ul { list-style: none; }
.prose ul li { position: relative; padding-inline-start: 1.3em; }
.prose ul li::before { content: ''; position: absolute; inset-inline-start: 0; inset-block-start: 0.72em; inline-size: 6px; block-size: 6px; background: var(--accent); border-radius: 50%; }
.prose ol { list-style: decimal; }
.prose blockquote { border-inline-start: 2px solid var(--accent); padding-inline-start: 1.3em; color: var(--paper); }
.prose hr { border: none; border-block-start: 1px solid var(--line); margin-block: 2em; }
.prose code { background: var(--ink-850); padding: 0.15em 0.4em; border-radius: 6px; font-size: 0.9em; }
.article__back { display: inline-flex; align-items: center; gap: 0.5em; color: var(--accent); font-weight: 600; margin-block-start: var(--sp-4); }

/* --------------------------------------------------------------- 404 */
.notfound { display: flex; align-items: center; min-block-size: calc(100svh - 72px); padding-block: var(--section-y); background: var(--ink-950); position: relative; overflow: hidden; }
.notfound::before { content: ''; position: absolute; inset: -25%; background: radial-gradient(38% 32% at 60% 30%, oklch(0.42 0.10 255 / 0.18), transparent 70%); filter: blur(46px); }
.notfound__inner { text-align: center; max-inline-size: 48ch; margin-inline: auto; position: relative; }
.notfound__code { font-family: var(--font-display); font-weight: var(--display-weight); font-size: clamp(4rem, 14vw, 8rem); line-height: 1; color: var(--accent); letter-spacing: -0.02em; margin-block-end: var(--sp-4); }
.notfound__title { font-size: var(--step-2); margin-block: 0 var(--sp-4); }
.notfound__text { color: var(--text-muted); font-size: var(--step-1); font-weight: 400; margin-block-end: var(--sp-7); }
.notfound__actions { display: flex; gap: var(--sp-3); justify-content: center; flex-wrap: wrap; }

/* --------------------------------------------------------------- to-top */
.to-top { position: fixed; inset-block-end: var(--sp-4); inset-inline-end: var(--sp-4); z-index: var(--z-totop); inline-size: 46px; block-size: 46px; display: grid; place-items: center; background: color-mix(in oklch, var(--ink-850) 88%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); color: var(--paper); border: 1px solid var(--line); border-radius: 50%; cursor: pointer; box-shadow: var(--shadow-deep); opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), visibility 0.4s, color 0.3s var(--ease), border-color 0.3s var(--ease); }
.to-top svg { stroke: currentColor; fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.to-top:hover { color: var(--accent); border-color: color-mix(in oklch, var(--accent) 45%, transparent); }
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* --------------------------------------------------------------- reveal */
html.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
html.js .reveal.is-in { opacity: 1; transform: none; }
.hero .reveal:nth-child(1) { transition-delay: 0.05s; }
.hero .reveal:nth-child(2) { transition-delay: 0.15s; }
.hero .reveal:nth-child(3) { transition-delay: 0.25s; }
.hero .reveal:nth-child(4) { transition-delay: 0.35s; }
.hero .reveal:nth-child(5) { transition-delay: 0.45s; }

/* --------------------------------------------------------------- responsive */
@media (max-width: 940px) {
  .feature__grid { grid-template-columns: 1fr; }
  /* Stack consistently: text first, then the card — even for the reversed
     (Pars Fanal) block, whose card leads on desktop for the zigzag layout. */
  .feature__grid--reverse .feature__content { order: -1; }
  .contact__grid { grid-template-columns: 1fr; }
  .contact__channels { position: static; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
  .client-wall { grid-template-columns: repeat(3, 1fr); }
  .caps { grid-template-columns: 1fr; }
  .stats__row { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(-n+2) { border-block-end: 1px solid var(--line); }
  .stat:nth-child(odd) { border-inline-start: none; }
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; inline-size: 44px; block-size: 44px; background: transparent; border: 1px solid var(--line); border-radius: 50%; cursor: pointer; }
  .nav-toggle__box { position: relative; inline-size: 18px; block-size: 14px; }
  .nav-toggle__bar, .nav-toggle__box::before, .nav-toggle__box::after { content: ''; position: absolute; inset-inline: 0; block-size: 2px; background: var(--paper); border-radius: 2px; transition: transform 0.35s var(--ease), opacity 0.25s var(--ease); }
  .nav-toggle__box::before { inset-block-start: 0; }
  .nav-toggle__bar { inset-block-start: 6px; }
  .nav-toggle__box::after { inset-block-end: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__box::before { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__box::after { transform: translateY(-6px) rotate(-45deg); }

  .nav { position: fixed; inset-block-start: 72px; inset-inline: 0; flex-direction: column; align-items: stretch; gap: 0; background: color-mix(in oklch, var(--ink-950) 92%, transparent); -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px); border-block-end: 1px solid var(--line); padding: var(--sp-3) var(--gutter) var(--sp-5); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: transform 0.4s var(--ease), opacity 0.4s var(--ease), visibility 0.4s; max-block-size: calc(100dvh - 72px); overflow-y: auto; }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav__links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link { padding: 0.95em 0; border-block-end: 1px solid var(--line); font-size: var(--step-0); }
  .nav__link::after { display: none; }
  .nav__actions { flex-direction: column; align-items: stretch; gap: var(--sp-3); margin-block-start: var(--sp-4); }
  .nav__actions .btn { justify-content: center; }
  .lang { align-self: flex-start; }
  .lang__menu { position: static; box-shadow: none; margin-block-start: var(--sp-2); }

  .stats__row { grid-template-columns: 1fr 1fr; }
  .client-wall { grid-template-columns: repeat(2, 1fr); }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
  .form__row { grid-template-columns: 1fr; gap: 0; }
  .section__head--row { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html.js .reveal { opacity: 1; transform: none; }
  .hero__pulse { display: none; }
  .marquee { overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
  .marquee__track { animation: none; }
  .marquee__set[aria-hidden="true"] { display: none; }
}