/* site.css — doubletime.co.kr primitives.
 *
 * Reads tokens from tokens.css. Two atmospheric images live at
 * /img/hero.png and /img/principles.png — gpt-image-2 painterly
 * compositions, used as the hero bg, principles divider strip, and
 * a low-opacity footer texture.
 */

/* — top bar (single fixed-width container, hairline below) */
.top { border-bottom: 1px solid var(--d-border); background: var(--d-bg); }
.top-inner {
  padding: 22px 0;
  display: flex; justify-content: space-between; align-items: center;
}
.top .brand {
  font-family: var(--d-sans);
  font-weight: var(--d-w-bold);
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--d-text);
}
.top nav { display: flex; gap: 28px; }
.top nav a {
  font-size: 13.5px;
  color: var(--d-text-2);
  font-weight: var(--d-w-medium);
}
.top nav a:hover { color: var(--d-text); }

/* — hero (full-bleed atmospheric image; text on the left over white gradient) */
.hero {
  position: relative;
  padding: 120px 0 100px;
  background: url('/img/hero.png') center right / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(
    to right,
    rgba(255,255,255,0.96) 0%,
    rgba(255,255,255,0.92) 36%,
    rgba(255,255,255,0.55) 65%,
    rgba(255,255,255,0.18) 100%
  );
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }

.hero .index {
  display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap;
  font-size: 12px;
  color: var(--d-text-3);
  font-weight: var(--d-w-medium);
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}
.hero .index .num { font-variant-numeric: tabular-nums; }
.hero h1 {
  font-family: var(--d-sans);
  font-weight: var(--d-w-bold);
  font-size: clamp(36px, 5.6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--d-text);
  margin-bottom: 24px;
  max-width: 18ch;
}
.hero .lede {
  font-size: 17px;
  color: var(--d-text-2);
  line-height: 1.65;
  max-width: 56ch;
  font-weight: var(--d-w-regular);
}

/* — section heading (numbered label stacked above the headline so the
     H2 and the body content below it share the same container-left
     baseline; the two-column gutter layout caused the About section's
     H2 to float right of its prose). */
.section {
  padding: var(--d-sp-8) 0;
  border-top: 1px solid var(--d-border);
}
.section-head {
  margin-bottom: var(--d-sp-5);
}
.section-head .label {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--d-text-3);
  font-weight: var(--d-w-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.section-head h2 {
  font-family: var(--d-sans);
  font-weight: var(--d-w-bold);
  font-size: clamp(26px, 3.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--d-text);
  max-width: 30ch;
}

/* — practice rows (table-like, business-register tone) */
.practice-table { border-top: 1px solid var(--d-border); }
.practice-row {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: var(--d-sp-3);
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--d-border);
  transition: background var(--d-dur-fast);
}
.practice-row:hover { background: var(--d-bg-alt); }
.practice-row .idx {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--d-text-3);
  font-weight: var(--d-w-semibold);
  letter-spacing: 0.04em;
}
.practice-row .title-block .name {
  font-size: 18px;
  font-weight: var(--d-w-semibold);
  color: var(--d-text);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.practice-row .title-block .desc {
  font-size: 14px;
  color: var(--d-text-2);
  line-height: 1.55;
}
.practice-row .out {
  font-size: 12.5px;
  color: var(--d-text-3);
  font-weight: var(--d-w-medium);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .practice-row { grid-template-columns: 40px 1fr; }
  .practice-row .out { display: none; }
}

/* — studio paragraph (big body) */
.studio-prose {
  font-size: 17px;
  line-height: 1.75;
  color: var(--d-text);
  max-width: 60ch;
  font-weight: var(--d-w-regular);
}
.studio-prose + .studio-prose { margin-top: 1.25em; }

/* — divider strip (between About and Principles, atmospheric paper texture) */
.strip {
  height: 120px;
  background: url('/img/principles.png') center / cover no-repeat;
  border-top: 1px solid var(--d-border);
  border-bottom: 1px solid var(--d-border);
}

/* — principles (3 col, no card, just top-stroke + text) */
.values {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--d-sp-4);
  margin-top: var(--d-sp-1);
}
@media (min-width: 760px) {
  .values { grid-template-columns: repeat(3, 1fr); gap: var(--d-sp-6); }
}
.value {
  border-top: 1px solid var(--d-accent);
  padding-top: var(--d-sp-2);
  max-width: 28ch;
}
.value .label {
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--d-text-3);
  font-weight: var(--d-w-medium);
  letter-spacing: 0.04em;
  margin-bottom: var(--d-sp-1);
}
.value h4 {
  font-size: 18px;
  font-weight: var(--d-w-semibold);
  color: var(--d-text);
  margin-bottom: var(--d-sp-1);
  letter-spacing: -0.01em;
}
.value p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--d-text-2);
}

/* — contact rows (press-kit fact list) */
.facts { border-top: 1px solid var(--d-border); }
.fact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 22px 0;
  border-bottom: 1px solid var(--d-border);
}
@media (min-width: 760px) {
  .fact-row {
    grid-template-columns: 200px 1fr;
    gap: var(--d-sp-6);
    align-items: baseline;
  }
}
.fact-row .key {
  font-size: 12.5px;
  font-weight: var(--d-w-medium);
  color: var(--d-text-3);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.fact-row .val {
  font-size: 15.5px;
  color: var(--d-text);
  line-height: 1.6;
  font-weight: var(--d-w-regular);
}
.fact-row .val a {
  border-bottom: 1px solid var(--d-border-2);
  padding-bottom: 1px;
}
.fact-row .val a:hover {
  color: var(--d-accent);
  border-bottom-color: var(--d-accent);
}

/* — footer (subtle hero bg at low opacity) */
.footer {
  position: relative;
  border-top: 1px solid var(--d-border);
  background: var(--d-bg-alt);
  padding: 56px 0 40px;
  margin-top: var(--d-sp-5);
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute; inset: 0;
  background: url('/img/hero.png') center / cover no-repeat;
  opacity: 0.10;
  pointer-events: none;
}
.footer .container { position: relative; z-index: 1; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--d-sp-4);
}
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 64px; }
}
.footer .col h5 {
  font-size: 12px;
  font-weight: var(--d-w-semibold);
  color: var(--d-text-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.footer .col p,
.footer .col li {
  font-size: 13.5px;
  color: var(--d-text-2);
  line-height: 1.85;
}
.footer .legal {
  margin-top: var(--d-sp-5);
  padding-top: var(--d-sp-3);
  border-top: 1px solid var(--d-border);
  font-size: 12px;
  color: var(--d-text-3);
  line-height: 1.85;
}
.footer .legal strong { color: var(--d-text-2); font-weight: var(--d-w-medium); }