/* Oboshor — coming soon
   Palette drawn from Susunia: granite grey, laterite earth, sal green, lime-wash walls. */

:root {
  --paper:      #f6f1e7;
  --paper-warm: #efe7d8;
  --ink:        #23201c;
  --ink-soft:   #56504a;
  --laterite:   #a9532f;
  --moss:       #4a5c3d;
  --line:       rgba(35, 32, 28, .16);
  --card:       rgba(255, 255, 255, .42);

  --display: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --bengali: "Noto Serif Bengali", "Kohinoor Bangla", "Nirmala UI", var(--display), serif;

  --measure: 62rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #17150f;
    --paper-warm: #100e09;
    --ink:        #f0e9dc;
    --ink-soft:   #a79f92;
    --laterite:   #d98455;
    --moss:       #93a880;
    --line:       rgba(240, 233, 220, .18);
    --card:       rgba(255, 255, 255, .04);
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100svh;
  font-family: var(--body);
  font-weight: 300;
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 50% -10%, var(--paper) 0%, var(--paper-warm) 68%, var(--paper-warm) 100%);
  -webkit-font-smoothing: antialiased;
}

/* Paper grain, so the flat colour does not read as plastic. */
.grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}
@media (prefers-color-scheme: dark) {
  .grain { mix-blend-mode: screen; opacity: .22; }
}

.page {
  position: relative;
  z-index: 1;
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 6rem) clamp(1.25rem, 5vw, 3rem) 0;
}

/* ---------- hero ---------- */

.hero { text-align: center; }

.kicker {
  margin: 0;
  font-size: clamp(.68rem, 1.6vw, .78rem);
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--laterite);
}

.wordmark {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  font-weight: 400;
  line-height: 1;
}

.wordmark__bn {
  display: block;
  font-family: var(--bengali);
  font-size: clamp(3.4rem, 15vw, 7.5rem);
  letter-spacing: .01em;
  color: var(--ink);
}

.wordmark__en {
  display: block;
  margin-top: clamp(.5rem, 2vw, 1rem);
  font-family: var(--display);
  font-size: clamp(1rem, 3.2vw, 1.5rem);
  font-weight: 500;
  letter-spacing: .46em;
  text-indent: .46em; /* balance the trailing letterspace */
  text-transform: uppercase;
  color: var(--ink-soft);
}

.lede {
  margin: clamp(1.75rem, 4vw, 2.5rem) auto 0;
  max-width: 34ch;
  font-family: var(--display);
  font-size: clamp(1.15rem, 3.4vw, 1.6rem);
  font-style: italic;
  line-height: 1.5;
  color: var(--ink-soft);
  text-wrap: balance;
}

/* ---------- opening soon ---------- */

.soon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(.9rem, 3vw, 1.6rem);
  max-width: 26rem;
  margin: clamp(2.75rem, 7vw, 4.5rem) auto 0;
}

.soon__rule {
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--line), transparent);
}

.soon__text {
  flex: 0 0 auto;
  font-size: clamp(.7rem, 2vw, .78rem);
  font-weight: 500;
  letter-spacing: .3em;
  text-indent: .3em;
  text-transform: uppercase;
  color: var(--laterite);
}

/* ---------- ridge ---------- */

.ridge {
  /* Bleed to the edges of the page column by cancelling its side padding —
     using vw here would overflow by the width of the scrollbar. */
  margin: clamp(3rem, 9vw, 6rem) calc(-1 * clamp(1.25rem, 5vw, 3rem)) 0;
  line-height: 0;
}
.ridge svg { width: 100%; height: clamp(90px, 17vw, 190px); display: block; }
.ridge__far  { fill: var(--ink); opacity: .10; }
.ridge__mid  { fill: var(--moss); opacity: .28; }
.ridge__near { fill: var(--laterite); opacity: .30; }

/* ---------- what we are building ---------- */

.what {
  padding: clamp(2.5rem, 7vw, 4.5rem) 0 0;
  border-top: 1px solid var(--line);
}

.section-title {
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: center;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: clamp(1.5rem, 4vw, 2.75rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.card__mark {
  display: block;
  width: 1.9rem;
  color: var(--laterite);
}
.card__mark svg { width: 100%; height: auto; display: block; }

.card__title {
  margin: 1rem 0 .55rem;
  font-family: var(--display);
  font-size: clamp(1.25rem, 3vw, 1.45rem);
  font-weight: 500;
  letter-spacing: .01em;
}

.card__body {
  margin: 0;
  font-size: clamp(.9rem, 2.3vw, .96rem);
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- footer ---------- */

.foot {
  margin-top: clamp(3.5rem, 9vw, 6rem);
  padding: clamp(1.5rem, 4vw, 2rem) 0 clamp(2.5rem, 6vw, 3.5rem);
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: .82rem;
  color: var(--ink-soft);
}

.foot__line { margin: 0; }
.foot__word { font-family: var(--bengali); font-size: 1rem; color: var(--ink); }
.foot__sep { margin: 0 .5em; opacity: .5; }
.foot__contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .35rem .75rem;
  margin: .7rem 0 0;
}
.foot__contact a { white-space: nowrap; }

/* Two contact lines are too long to share a row on a phone — stack them
   and drop the middot rather than let it orphan. */
@media (max-width: 30rem) {
  .foot__contact .foot__sep { display: none; }
  .foot__contact a { flex: 0 0 100%; }
}

.foot a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--laterite);
  padding-bottom: 1px;
}
.foot a:hover, .foot a:focus-visible { color: var(--laterite); }

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

/* ---------- entrance ---------- */

.reveal {
  animation: rise .9s cubic-bezier(.2, .7, .2, 1) both;
  animation-delay: var(--d, 0s);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; }
}