/* ==========================================================================
   Parsian Holdings — production stylesheet
   Design source of truth: dev-reference/parsianmockup.png (design-locked)
   ========================================================================== */

:root {
  color-scheme: dark;

  /* -- Palette (sampled from the approved mockup) -- */
  --color-bg:          #0a0a0b;
  --color-bg-raised:   #111113;
  --color-bg-card:     #0d0d0e;

  --color-gold:        #d4a65a;
  --color-gold-bright: #ecc888;
  --color-gold-soft:   rgba(212, 166, 90, 0.55);
  --color-gold-hair:   rgba(212, 166, 90, 0.18);

  --color-ivory:       #f5f1e6;
  --color-text:        #e9e5db;
  --color-text-muted:  #b3aea3;
  --color-text-faint:  #857f74;

  --color-border:      rgba(212, 166, 90, 0.14);

  /* -- Type -- */
  --font-serif: "Playfair Display", "Georgia", serif;
  --font-sans:  "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* -- Layout -- */
  --container-width: 1280px;
  --container-pad: clamp(20px, 5vw, 64px);
  --header-height: 108px;

  --ease: cubic-bezier(.4,0,.2,1);

  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

/* -- Reset -- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-serif); font-weight: 600; color: var(--color-ivory); }
p { margin: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

.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;
}

.skip-link {
  position: absolute;
  left: 12px; top: -60px;
  background: var(--color-gold);
  color: #0a0a0b;
  padding: 10px 18px;
  border-radius: 4px;
  font-weight: 600;
  z-index: 1000;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

:focus-visible {
  outline: 2px solid var(--color-gold-bright);
  outline-offset: 3px;
}

.container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 0.9em;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  line-height: 1.15;
}
.section-heading__rule {
  display: inline-block;
  width: 64px;
  height: 1px;
  background: var(--color-gold-soft);
  transform: translateY(2px);
}

/* -- Buttons -- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 3px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.btn span { transition: transform .25s var(--ease); }
.btn:hover span { transform: translateX(3px); }

.btn--gold-solid {
  background: linear-gradient(180deg, var(--color-gold-bright), var(--color-gold));
  color: #14100a;
}
.btn--gold-solid:hover { filter: brightness(1.08); }

.btn--outline {
  border-color: rgba(245, 241, 230, 0.35);
  color: var(--color-ivory);
}
.btn--outline:hover { border-color: var(--color-ivory); background: rgba(245,241,230,0.06); }

.btn--gold-outline {
  border-color: var(--color-gold-soft);
  color: var(--color-gold);
}
.btn--gold-outline:hover { background: rgba(212,166,90,0.1); border-color: var(--color-gold); }

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-top: env(safe-area-inset-top, 0px);
  background: linear-gradient(180deg, rgba(6,6,7,0.85) 0%, rgba(6,6,7,0.55) 70%, transparent 100%);
  backdrop-filter: blur(6px);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: var(--header-height);
}
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand__mark { height: 76px; width: auto; }

.nav { flex: 1; display: flex; justify-content: center; }
.nav__list { display: flex; align-items: center; gap: 38px; }
.nav__link {
  position: relative;
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--color-text);
  padding-bottom: 6px;
  transition: color .2s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.nav__link:hover { color: var(--color-ivory); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--color-gold); }
.nav__link.is-active::after { transform: scaleX(1); }

.nav__cta { flex-shrink: 0; padding: 12px 26px; font-size: 0.84rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--color-ivory);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  top: calc(var(--header-height) + env(safe-area-inset-top, 0px));
  background: #08080a;
  padding: 32px var(--container-pad);
  z-index: 90;
}
.mobile-nav.is-open { display: block; }
.mobile-nav__list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 32px; }
.mobile-nav__list a {
  display: block;
  padding: 14px 4px;
  font-size: 1.15rem;
  font-family: var(--font-serif);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav__list a.is-active { color: var(--color-gold); }
.mobile-nav__cta { width: 100%; justify-content: center; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: clamp(640px, 92vh, 880px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-height);
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 78% center;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, #0a0a0b 0%, rgba(10,10,11,0.94) 20%, rgba(10,10,11,0.55) 42%, rgba(10,10,11,0.18) 58%, rgba(10,10,11,0.35) 100%),
    linear-gradient(0deg, #0a0a0b 0%, rgba(10,10,11,0.15) 16%, transparent 40%);
}

.hero__inner { position: relative; z-index: 1; width: 100%; }
.hero__content { max-width: 620px; }

.hero__heading {
  font-size: clamp(2.8rem, 5.6vw, 4.8rem);
  line-height: 1.08;
  margin-bottom: 0.55em;
}
.hero__heading-line { display: block; }
.hero__heading-line--ivory { color: var(--color-ivory); }
.hero__heading-line--gold {
  background: linear-gradient(180deg, var(--color-gold-bright), var(--color-gold) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__body {
  max-width: 460px;
  font-size: 1.02rem;
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: 2.1em;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 2.6em; }

.hero__micro {
  font-size: 0.74rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold-soft);
}

/* ==========================================================================
   Values strip
   ========================================================================== */
.values {
  background: var(--color-bg);
  padding-block: clamp(48px, 7vw, 88px);
  border-bottom: 1px solid var(--color-border);
}
.values__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.value-col {
  position: relative;
  padding-inline: clamp(12px, 2.5vw, 36px);
  text-align: center;
}
.value-col + .value-col::before {
  content: "";
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--color-border);
}
.value-col__icon {
  display: inline-flex;
  width: 46px; height: 46px;
  color: var(--color-gold);
  margin-bottom: 20px;
}
.value-col__icon svg { width: 100%; height: 100%; }
.value-col__title {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-ivory);
  margin-bottom: 12px;
}
.value-col__desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Our Businesses
   ========================================================================== */
.businesses { padding-block: clamp(64px, 9vw, 112px); }

.businesses__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 48px;
  margin-bottom: clamp(36px, 5vw, 56px);
  flex-wrap: wrap;
}
.businesses__head-copy {
  max-width: 420px;
  color: var(--color-text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
  padding-bottom: 6px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 1.6vw, 24px);
}

.biz-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.biz-card:hover { border-color: var(--color-gold-soft); transform: translateY(-3px); }

.biz-card__media { aspect-ratio: 16 / 8; overflow: hidden; }
.biz-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.biz-card:hover .biz-card__media img { transform: scale(1.06); }

.biz-card__body { padding: 22px 22px 26px; position: relative; }
.biz-card__title { font-size: 1.2rem; margin-bottom: 8px; }
.biz-card__desc { font-size: 0.86rem; color: var(--color-text-muted); line-height: 1.5; padding-right: 30px; }
.biz-card__arrow {
  position: absolute;
  right: 22px; bottom: 24px;
  color: var(--color-gold);
  font-size: 1.1rem;
  transition: transform .25s var(--ease);
}
.biz-card:hover .biz-card__arrow { transform: translateX(4px); }

/* ==========================================================================
   Impact
   ========================================================================== */
.impact {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 8vw, 96px);
}
.impact__bg { position: absolute; inset: 0; z-index: 0; }
.impact__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 30%; }
.impact__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,6,7,0.88) 0%, rgba(6,6,7,0.55) 45%, rgba(6,6,7,0.72) 100%);
}

.impact__inner {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.impact__heading {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  line-height: 1.15;
}
.impact__stats {
  display: flex;
  gap: clamp(20px, 3vw, 48px);
  flex-wrap: wrap;
}
.impact-stat {
  position: relative;
  padding-left: clamp(20px, 3vw, 48px);
}
.impact-stat:first-child { padding-left: 0; }
.impact-stat::before {
  content: "";
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 1px;
  background: var(--color-gold-soft);
}
.impact-stat:first-child::before { display: none; }
.impact-stat__value {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-ivory);
  margin-bottom: 6px;
  white-space: nowrap;
}
.impact-stat__label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Pre-footer brand strip
   ========================================================================== */
.prefooter {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-block: clamp(36px, 5vw, 56px);
}
.prefooter__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.prefooter__brand img { height: 82px; width: auto; }
.prefooter__tagline {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  line-height: 1.9;
  flex: 1;
  min-width: 220px;
  padding-left: clamp(0px, 4vw, 48px);
  border-left: 1px solid var(--color-border);
  margin-left: clamp(0px, 2vw, 24px);
}
.prefooter__cta { flex-shrink: 0; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { padding-block: 28px; }
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.site-footer__copy { font-size: 0.8rem; color: var(--color-text-faint); }
.site-footer__links { display: flex; gap: 22px; }
.site-footer__links a { font-size: 0.8rem; color: var(--color-text-faint); transition: color .2s var(--ease); }
.site-footer__links a:hover { color: var(--color-gold); }
.site-footer__social { display: flex; gap: 14px; }
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(245,241,230,0.06);
  color: var(--color-text-muted);
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
.site-footer__social a:hover { background: var(--color-gold); color: #14100a; }
.site-footer__social svg { width: 15px; height: 15px; fill: currentColor; }

/* ==========================================================================
   Simple content pages (about / privacy / terms / contact)
   ========================================================================== */
.page-hero {
  padding: calc(var(--header-height) + 64px) 0 56px;
  border-bottom: 1px solid var(--color-border);
}
.page-hero__eyebrow { margin-bottom: 1em; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); }

.page-content { padding-block: clamp(48px, 7vw, 80px); }
.page-content .container { max-width: 820px; }
.page-content h2 {
  font-size: 1.4rem;
  margin-top: 2.2em;
  margin-bottom: 0.7em;
}
.page-content h2:first-child { margin-top: 0; }
.page-content p, .page-content li {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.75;
  margin-bottom: 1.1em;
}
.page-content ul { padding-left: 1.3em; }
.page-content li { list-style: disc; }
.page-content a { color: var(--color-gold); text-decoration: underline; text-underline-offset: 3px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.contact-info h2 { margin-top: 0; }
.contact-info a { color: var(--color-gold); }

.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.form-field input,
.form-field textarea {
  width: 100%;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 13px 16px;
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 0.94rem;
  transition: border-color .2s var(--ease);
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-gold-soft);
}
.form-field textarea { min-height: 140px; resize: vertical; }

.form-notice {
  padding: 14px 18px;
  border-radius: 3px;
  font-size: 0.9rem;
  margin-bottom: 24px;
}
.form-notice--success { background: rgba(212,166,90,0.12); border: 1px solid var(--color-gold-soft); color: var(--color-gold-bright); }
.form-notice--error { background: rgba(200,80,80,0.1); border: 1px solid rgba(200,80,80,0.4); color: #e0a3a3; }

/* ==========================================================================
   Scroll-reveal (subtle, restrained)
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .7s var(--ease), transform .7s var(--ease);
  }
  .reveal.is-visible { opacity: 1; transform: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .nav, .nav__cta { display: none; }
  .nav-toggle { display: flex; }

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

  .impact__inner { flex-direction: column; align-items: flex-start; }
  .impact__stats { gap: 28px; }

  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --header-height: 76px; }
  .brand__mark { height: 46px; }

  .hero { min-height: 100svh; padding-top: calc(var(--header-height) + 24px); padding-bottom: 48px; align-items: flex-start; }
  .hero__bg-img { object-position: 68% center; }
  .hero__scrim {
    background:
      linear-gradient(180deg, #0a0a0b 0%, rgba(10,10,11,0.55) 38%, rgba(10,10,11,0.35) 60%, rgba(10,10,11,0.85) 100%),
      linear-gradient(90deg, #0a0a0b 0%, rgba(10,10,11,0.5) 55%, rgba(10,10,11,0.2) 100%);
  }
  .hero__content { max-width: 100%; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }

  .values__grid { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .value-col + .value-col::before { display: none; }
  .value-col:nth-child(odd) { border-right: 1px solid var(--color-border); }

  .businesses__head { align-items: flex-start; }
  .card-grid { grid-template-columns: 1fr; }

  .impact-stat { padding-left: 0; width: 45%; }
  .impact-stat::before { display: none; }

  .prefooter__inner { flex-direction: column; align-items: flex-start; text-align: left; }
  .prefooter__tagline { border-left: none; padding-left: 0; margin-left: 0; }
  .prefooter__cta { width: 100%; justify-content: center; }

  .site-footer__inner { flex-direction: column; text-align: center; }
}