/* Istanbul Dinner Club — implementation of "Istanbul Dinner Club.dc.html".
   Tokens below are the artboard's dark override of the Classical design system
   (Cormorant Garamond headings / Lora body, hairline rules, a single gold accent). */

:root {
  /* Color */
  --ink:        #0F0E0C;  /* warm black ground */
  --ivory:      #ECE7DC;  /* primary text */
  --beige:      #B4AC9E;  /* secondary text */
  --gold:       #C2A15F;  /* the single accent */
  --gold-hover: #D4B675;
  --plate-bg:   #171512;  /* image mat */
  --hairline:   rgba(236, 231, 220, 0.12);
  --gold-line:  rgba(194, 161, 95, 0.6);

  /* Type */
  --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Lora', Georgia, 'Times New Roman', serif;

  /* Fluid scale — interpolated between the Mobile (390) and Desktop (1440) artboards */
  --fs-h1:        clamp(46px, 30.40px + 4.00vw, 88px);
  --fs-h2:        clamp(34px, 27.32px + 1.71vw, 52px);
  --fs-h2-host:   clamp(36px, 33.03px + 0.76vw, 44px);
  --fs-h2-join:   clamp(44px, 33.60px + 2.67vw, 72px);
  --fs-h3:        clamp(28px, 25.77px + 0.57vw, 34px);
  --fs-manifesto: clamp(38px, 29.83px + 2.10vw, 60px);
  --fs-faq-q:     clamp(23px, 20.40px + 0.67vw, 30px);
  --fs-detail:    clamp(22px, 19.77px + 0.57vw, 28px);
  --fs-lede:      clamp(16px, 14.89px + 0.29vw, 19px);
  --fs-body:      clamp(15px, 14.26px + 0.19vw, 17px);
  --fs-body-lg:   clamp(16px, 15.26px + 0.19vw, 18px);
  --fs-kicker:    clamp(11px, 10.63px + 0.10vw, 12px);

  /* Layout */
  --gutter: clamp(24px, -1.83px + 6.63vw, 72px);
  --maxw: 1440px;
}

/* ---------- Reset & base ---------- */

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-heading); font-weight: 400; margin: 0; }
p { margin: 0; }
img { display: block; max-width: 100%; }

a { color: var(--ivory); text-decoration: none; transition: color 160ms ease; }
a:hover { color: var(--gold); }

::selection { background: rgba(194, 161, 95, 0.35); }

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

.tnum { font-feature-settings: 'tnum'; }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  background: var(--gold);
  color: var(--ink);
  padding: 12px 20px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.skip-link:focus { left: 0; color: var(--ink); }

/* ---------- Shared pieces ---------- */

main { max-width: var(--maxw); margin: 0 auto; }

.kicker {
  font-size: var(--fs-kicker);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  line-height: 1.4;
}

.prose {
  font-size: var(--fs-body-lg);
  line-height: 1.75;
  color: var(--beige);
}
.prose + .prose { margin-top: clamp(16px, 14.51px + 0.38vw, 20px); }
.prose--sm { font-size: var(--fs-body); }

.rule {
  border: 0;
  height: 1px;
  background: var(--hairline);
  margin: 0 var(--gutter);
}
.rule--spaced { margin-top: clamp(56px, 22.76px + 8.52vw, 120px); }

.btn {
  display: inline-block;
  background: var(--gold);
  color: var(--ink);
  font-size: clamp(12px, 11.63px + 0.10vw, 13px);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: clamp(18px, 17.26px + 0.19vw, 20px) 40px;
  border-radius: 2px;
  transition: background-color 160ms ease;
}
.btn:hover { background: var(--gold-hover); color: var(--ink); }

.link-gold {
  display: inline-block;
  align-self: flex-start;
  font-size: clamp(12px, 11.63px + 0.10vw, 13px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px solid rgba(194, 161, 95, 0.5);
  padding-bottom: 3px;
}
.link-gold:hover { color: var(--gold-hover); border-bottom-color: var(--gold-hover); }

/* Images sit matted on the warm dark ground, cropped to the artboard's frame. */
.plate {
  margin: 0;
  position: relative;
  background: var(--plate-bg);
  overflow: hidden;
}
.plate img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.bleed { padding: 0 var(--gutter); }

/* ---------- Nav ---------- */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: clamp(10px, 3.71px + 1.61vw, 16px);
  padding: clamp(22px, 17.55px + 1.14vw, 34px) var(--gutter);
  border-bottom: 1px solid var(--hairline);
  max-width: var(--maxw);
  margin: 0 auto;
}
.nav__brand {
  font-family: var(--font-heading);
  font-size: clamp(11px, 1.40px + 3.23vw, 18px);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav__link {
  font-size: clamp(9px, 2.63px + 2.15vw, 12px);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--beige);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--gold-line);
  transition: color 160ms ease, border-color 160ms ease;
  white-space: nowrap;
}
.nav__link:hover { color: var(--gold); border-bottom-color: var(--gold); }

/* ---------- Hero ---------- */

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(72px, 54.17px + 4.57vw, 120px) var(--gutter) clamp(56px, 47.09px + 2.29vw, 80px);
}
.hero .kicker { margin-bottom: clamp(28px, 25.03px + 0.76vw, 36px); }
.hero__title {
  font-size: var(--fs-h1);
  line-height: 1.04;
  letter-spacing: -0.01em;
  max-width: 980px;
}
.hero__lede {
  font-size: var(--fs-lede);
  line-height: 1.7;
  color: var(--beige);
  max-width: 640px;
  margin-top: clamp(28px, 23.54px + 1.14vw, 40px);
}
.hero .btn { margin-top: clamp(36px, 31.54px + 1.14vw, 48px); }
.hero__date {
  margin-top: clamp(18px, 16.51px + 0.38vw, 22px);
  font-size: clamp(12px, 11.63px + 0.10vw, 13px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--beige);
}

.plate--wide { height: clamp(300px, 173.71px + 32.38vw, 640px); }
.plate--toast { height: clamp(300px, 203.43px + 24.76vw, 560px); }

/* ---------- The idea ---------- */

.idea { padding: clamp(72px, 54.17px + 4.57vw, 120px) var(--gutter); }
.idea__copy .kicker { margin-bottom: clamp(28px, 23.54px + 1.14vw, 40px); }
.idea__title { font-size: var(--fs-h2); line-height: 1.15; max-width: 720px; }
.idea__copy .prose { margin-top: clamp(24px, 19.54px + 1.14vw, 36px); max-width: 560px; }
.plate--founder { margin-top: 40px; height: 420px; }

/* ---------- How it works ---------- */

.how { padding: clamp(72px, 54.17px + 4.57vw, 120px) var(--gutter); }
.how__grid {
  list-style: none;
  margin: clamp(28px, 11.75px + 4.17vw, 72px) 0 0;
  padding: 0;
  display: grid;
  gap: 40px;
}
.step {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 11.77px + 0.57vw, 20px);
  padding-top: clamp(22px, 19.77px + 0.57vw, 28px);
  border-top: 1px solid var(--hairline);
}
.step__num {
  font-family: var(--font-heading);
  font-size: clamp(18px, 17.26px + 0.19vw, 20px);
  letter-spacing: 0.1em;
  color: var(--gold);
  font-feature-settings: 'tnum';
}
.step__title { font-size: var(--fs-h3); line-height: 1.15; }

/* ---------- Manifesto ---------- */

.manifesto {
  padding: clamp(88px, 68.69px + 4.95vw, 140px) var(--gutter);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(12px, 9.77px + 0.57vw, 18px);
}
.manifesto__line {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: var(--fs-manifesto);
  line-height: 1.15;
}
.manifesto__line--gold { color: var(--gold); margin-top: clamp(16px, 13.03px + 0.76vw, 24px); }

/* ---------- Details ---------- */

.details {
  padding: clamp(56px, 50.06px + 1.52vw, 72px) var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px 24px;
  margin: 0;
}
.detail { display: flex; flex-direction: column; gap: clamp(10px, 8.51px + 0.38vw, 14px); }
.detail__label {
  font-size: clamp(10px, 9.63px + 0.10vw, 11px);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--beige);
}
.detail__value {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--fs-detail);
  line-height: 1.25;
  color: var(--ivory);
}

/* ---------- The host ---------- */

.host { padding: clamp(72px, 54.17px + 4.57vw, 120px) var(--gutter); }
.plate--host { height: 428px; }
.host__copy { display: flex; flex-direction: column; }
.host__copy .kicker { margin: 40px 0 clamp(24px, 19.54px + 1.14vw, 36px); }
.host__title { font-size: var(--fs-h2-host); line-height: 1.1; }
.host__title + .prose { margin-top: clamp(22px, 19.77px + 0.57vw, 28px); }
.host__copy .link-gold { margin-top: clamp(28px, 26.51px + 0.38vw, 32px); }

/* ---------- FAQ ---------- */

.faq { padding: clamp(72px, 54.17px + 4.57vw, 120px) var(--gutter); }
.faq__list { margin-top: 32px; border-top: 1px solid var(--hairline); }
.faq__item { border-bottom: 1px solid var(--hairline); }
.faq__h { margin: 0; font-size: inherit; font-weight: inherit; }
.faq__q {
  all: unset;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  width: 100%;
  box-sizing: border-box;
  padding: clamp(22px, 19.03px + 0.76vw, 30px) 0;
  cursor: pointer;
  color: var(--ivory);
  font-family: var(--font-heading);
  font-size: var(--fs-faq-q);
  line-height: 1.2;
  text-align: left;
  transition: color 160ms ease;
}
.faq__q:hover { color: var(--gold); }
.faq__q:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.faq__sign {
  color: var(--gold);
  width: 24px;
  text-align: center;
  flex: none;
  line-height: 1.2;
}
.faq__a { padding: 0 40px 24px 0; max-width: 620px; }

/* ---------- Join ---------- */

.join {
  padding: clamp(96px, 72.23px + 6.10vw, 160px) var(--gutter) clamp(88px, 68.69px + 4.95vw, 140px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.join__title { font-size: var(--fs-h2-join); line-height: 1.05; }
.join__lede {
  font-size: var(--fs-body-lg);
  line-height: 1.75;
  color: var(--beige);
  max-width: 600px;
  margin-top: clamp(24px, 19.54px + 1.14vw, 36px);
}
.join .btn { margin-top: clamp(36px, 31.54px + 1.14vw, 48px); }
.join__note {
  margin-top: clamp(20px, 18.51px + 0.38vw, 24px);
  font-size: clamp(13px, 12.63px + 0.10vw, 14px);
  color: var(--beige);
  font-style: italic;
}

/* ---------- Footer ---------- */

.footer {
  border-top: 1px solid var(--hairline);
  padding: clamp(32px, 29.03px + 0.76vw, 40px) var(--gutter);
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  text-align: center;
  max-width: var(--maxw);
  margin: 0 auto;
}
.footer__brand {
  font-family: var(--font-heading);
  font-size: clamp(14px, 13.26px + 0.19vw, 16px);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.footer__meta { font-size: clamp(12px, 11.63px + 0.10vw, 13px); color: var(--beige); }

/* ---------- Mobile CTA: full-bleed button, as on the 390 artboard ---------- */

@media (max-width: 767px) {
  .hero .btn, .join .btn { display: block; width: 100%; text-align: center; padding-left: 20px; padding-right: 20px; }
  .faq__a { padding-right: 40px; }

  /* The 390 artboard runs these two photographs edge to edge, and drops the
     rule between the hero plate and "The idea". */
  .bleed { padding: 0; }
  .rule--spaced { display: none; }
}

/* ---------- Desktop layout — the 1440 artboard ---------- */

@media (min-width: 768px) {
  .how__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(32px, -22.86px + 7.14vw, 64px); }
  .details { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(24px, -17.14px + 5.36vw, 48px); }

  .idea {
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(360px, 137.14px + 29.02vw, 520px);
    gap: clamp(48px, -34.29px + 10.71vw, 96px);
    align-items: center;
  }
  .plate--founder { margin-top: 0; height: clamp(440px, 165.71px + 35.71vw, 640px); }

  .host {
    display: grid;
    grid-template-columns: clamp(300px, 137.14px + 21.21vw, 420px) minmax(0, 1fr);
    gap: clamp(48px, -34.29px + 10.71vw, 96px);
    align-items: center;
  }
  .plate--host { height: clamp(375px, 171.43px + 26.51vw, 525px); }
  .host__copy { max-width: 600px; }
  .host__copy .kicker { margin-top: 0; }

  .faq {
    display: grid;
    grid-template-columns: clamp(200px, 37.14px + 21.21vw, 320px) minmax(0, 1fr);
    gap: clamp(48px, -34.29px + 10.71vw, 96px);
  }
  .faq__list { margin-top: 0; }
  .faq__q { align-items: center; gap: 32px; }
  .faq__a { padding-right: 64px; }

  .how__kicker { text-align: center; }

  .nav__brand { letter-spacing: 0.22em; }
  .nav__link { letter-spacing: 0.2em; }

  .footer { flex-direction: row; justify-content: space-between; }
}