/* ============================================================
   purwarkrishna.dev — dark editorial system
   ============================================================ */

:root {
  /* base surfaces — warm near-black */
  --bg:        oklch(0.158 0.004 80);
  --bg-2:      oklch(0.185 0.005 80);
  --surface:   oklch(0.215 0.006 80);
  --surface-2: oklch(0.255 0.006 80);

  /* ink */
  --text:   oklch(0.935 0.006 80);
  --muted:  oklch(0.72 0.008 80);
  --faint:  oklch(0.55 0.008 80);

  /* hairlines */
  --line:        oklch(1 0 0 / 0.10);
  --line-strong: oklch(1 0 0 / 0.18);

  /* accent — restrained warm gold */
  --accent:     oklch(0.785 0.105 78);
  --accent-2:   oklch(0.70 0.10 70);
  --accent-ink: oklch(0.20 0.04 80);
  --accent-soft: oklch(0.785 0.105 78 / 0.12);

  /* type */
  --display: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Hanken Grotesk", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  /* layout */
  --container: 1280px;
  --gutter: clamp(20px, 5vw, 80px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--accent-ink); }

a { color: inherit; text-decoration: none; }
img, svg { display: block; }

/* subtle film grain over everything */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9000;
  opacity: var(--grain-opacity, 0.04);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { position: relative; padding-block: clamp(72px, 11vh, 150px); }
.section + .section { border-top: 1px solid var(--line); }

/* kicker / eyebrow label */
.kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
  display: flex;
  align-items: center;
  gap: 12px;
}
.kicker .idx { color: var(--accent); }
.kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--line-strong);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: clamp(36px, 6vh, 64px);
  flex-wrap: wrap;
}
.section-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.section-title em { font-style: italic; color: var(--muted); }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.5s var(--ease), border-color 0.5s var(--ease), backdrop-filter 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: oklch(0.158 0.004 80 / 0.72);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand .dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.brand .name { font-size: 16px; white-space: nowrap; }
.brand .name span { color: var(--faint); font-family: var(--mono); font-size: 13px; white-space: nowrap; }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
}
.nav-links {
  display: flex;
  gap: clamp(18px, 2.5vw, 34px);
  list-style: none;
}
.nav-links a {
  font-size: 14.5px;
  color: var(--muted);
  position: relative;
  padding-block: 4px;
  transition: color 0.3s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

/* buttons */
.btn {
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.005em;
  border: 0;
  cursor: pointer;
  padding: 13px 22px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.4s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: oklch(0.83 0.11 80); }
.btn-primary .arrow { transition: transform 0.4s var(--ease); }
.btn-primary:hover .arrow { transform: translateX(3px); }
.btn-ghost {
  background: oklch(1 0 0 / 0.035);
  color: var(--text);
  border: 1px solid oklch(1 0 0 / 0.30);
}
.btn-ghost:hover { border-color: var(--text); background: oklch(1 0 0 / 0.07); }
.btn-sm { padding: 10px 16px; font-size: 13.5px; border-radius: 7px; }

.nav-toggle { display: none; }

/* ---------- hero ---------- */
.hero {
  padding-top: clamp(100px, 13vh, 152px);
  padding-bottom: clamp(56px, 9vh, 104px);
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -10%; right: -5%;
  width: 60vw; height: 60vw;
  max-width: 900px; max-height: 900px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 62%);
  pointer-events: none;
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }

/* hero portrait variant (off by default; toggled via Tweaks) */
.hero-portrait-slot { display: none; }
body.hero-portrait .hero .wrap {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
body.hero-portrait .hero-portrait-slot {
  display: block;
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
  aspect-ratio: 4 / 5;
}
body.hero-portrait .hero-portrait-slot image-slot {
  display: block;
  width: 100%;
  height: 100%;
  filter: grayscale(0.28) contrast(1.04) brightness(0.9) sepia(0.12);
}
body.hero-portrait .hero-portrait-slot::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 40%, oklch(0.16 0.02 70 / 0.6) 100%);
  mix-blend-mode: multiply;
}
body.hero-portrait .hero-portrait-slot .portrait-cap {
  position: absolute;
  left: 16px; bottom: 14px;
  z-index: 2;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}
@media (max-width: 860px) {
  body.hero-portrait .hero .wrap { grid-template-columns: 1fr; }
  body.hero-portrait .hero-portrait-slot { display: none; }
}

.hero-headline {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.15rem, 4.6vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: -0.022em;
  max-width: 19ch;
  margin-top: 20px;
  text-wrap: balance;
}
.hero-headline em { font-style: italic; color: var(--accent); }

.hero-sub {
  margin-top: 22px;
  font-size: clamp(1.02rem, 1.5vw, 1.22rem);
  line-height: 1.55;
  color: var(--muted);
  max-width: 54ch;
}
.hero-cta {
  margin-top: 28px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}
.hero-proof {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: clamp(16px, 2.6vw, 40px);
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--faint);
  text-transform: uppercase;
}
.hero-proof span { display: inline-flex; align-items: center; gap: 9px; }
.hero-proof span::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  flex: none;
}

/* ---------- credibility marquee ---------- */
.credstrip {
  padding-block: 26px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background: var(--bg-2);
}
.marquee {
  display: flex;
  gap: 0;
  width: max-content;
  animation: scrollx 38s linear infinite;
}
.marquee:hover { animation-play-state: paused; }
@keyframes scrollx { to { transform: translateX(-50%); } }
.marquee .item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-inline: 30px;
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  color: var(--muted);
  white-space: nowrap;
}
.marquee .item::after {
  content: "✦";
  font-family: var(--sans);
  font-style: normal;
  color: var(--accent);
  font-size: 0.7em;
  margin-left: 30px;
}

/* ---------- work ---------- */
.work-list { border-top: 1px solid var(--line); overflow-x: clip; }
.work-item {
  display: grid;
  grid-template-columns: 88px 1fr 320px;
  gap: clamp(20px, 4vw, 56px);
  align-items: center;
  padding-block: clamp(34px, 5vh, 52px);
  border-bottom: 1px solid var(--line);
  position: relative;
  cursor: pointer;
  transition: padding-left 0.5s var(--ease);
}
.work-item::before {
  content: "";
  position: absolute;
  left: -24px; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.5s var(--ease);
}
.work-item:hover { padding-left: 16px; }
.work-item:hover::before { transform: scaleY(1); }

.work-idx { font-family: var(--mono); font-size: 13px; color: var(--faint); padding-top: 6px; }
.work-main { max-width: 46ch; }
.work-name {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.8rem, 3.4vw, 2.9rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  transition: color 0.4s var(--ease);
}
.work-item:hover .work-name { color: var(--accent); }
.work-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin-left: 14px;
  vertical-align: middle;
}
.work-desc { color: var(--muted); margin-top: 14px; font-size: 1.02rem; line-height: 1.55; }
.work-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.chip {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--muted);
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 5px;
  white-space: nowrap;
}
.work-thumb {
  align-self: stretch;
  min-height: 168px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}

/* striped placeholder */
.ph {
  width: 100%;
  height: 100%;
  min-height: inherit;
  position: relative;
  background:
    repeating-linear-gradient(135deg, oklch(1 0 0 / 0.035) 0 2px, transparent 2px 11px),
    var(--surface);
  display: flex;
  align-items: flex-end;
  padding: 14px;
  transition: transform 0.6s var(--ease);
}
.work-item:hover .ph { transform: scale(1.04); }
.ph .ph-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}
.ph::before {
  content: "";
  position: absolute;
  top: 14px; left: 14px;
  width: 26px; height: 26px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

/* ---------- capabilities (what gets built) — asymmetric ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.cap {
  background: var(--bg);
  padding: clamp(24px, 3.2vw, 40px);
  transition: background 0.4s var(--ease);
  position: relative;
  display: flex;
  flex-direction: column;
}
.cap::after {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.5s var(--ease);
}
.cap:hover { background: var(--bg-2); }
.cap:hover::after { transform: scaleY(1); }
.cap .cap-num { font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: 0.06em; }
.cap h3 {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-top: 14px;
}
.cap p { color: var(--muted); margin-top: 10px; font-size: 0.98rem; line-height: 1.55; }

/* pinwheel spans */
.cap-1 { grid-column: span 7; }
.cap-2 { grid-column: span 5; }
.cap-3 { grid-column: span 5; }
.cap-4 { grid-column: span 7; }

/* lead card is visually dominant */
.cap-lead { background: linear-gradient(150deg, var(--bg-2), var(--bg)); }
.cap-lead h3 { font-size: clamp(1.7rem, 2.6vw, 2.3rem); margin-top: 18px; }
.cap-lead p { font-size: 1.06rem; max-width: 42ch; }
.cap-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 26px;
}

/* ---------- writing ---------- */
.feature-article {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: stretch;
  margin-bottom: 56px;
  padding: clamp(24px, 3vw, 40px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  transition: border-color 0.4s var(--ease), transform 0.5s var(--ease);
  cursor: pointer;
}
.feature-article:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.fa-flag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.fa-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  line-height: 1.1;
  letter-spacing: -0.018em;
  margin-top: 18px;
}
.fa-excerpt { color: var(--muted); margin-top: 18px; max-width: 50ch; }
.fa-meta {
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  gap: 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.04em;
}
.fa-meta span { white-space: nowrap; }
.fa-visual { min-height: 240px; border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }

.article-list { display: flex; flex-direction: column; }
.article-row {
  display: grid;
  grid-template-columns: 112px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding-block: 22px;
  border-top: 1px solid var(--line);
  cursor: pointer;
  transition: padding-left 0.4s var(--ease);
}
.article-row:last-child { border-bottom: 1px solid var(--line); }
.article-row:hover { padding-left: 12px; }
.ar-cat { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); line-height: 1.4; }
.ar-title {
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: color 0.3s var(--ease);
  line-height: 1.2;
}
.article-row:hover .ar-title { color: var(--accent); }
.ar-meta { font-family: var(--mono); font-size: 12px; color: var(--faint); white-space: nowrap; }

/* ---------- operating method (how I work) ---------- */
.principles {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.work-intro .section-title { margin-top: 22px; }
.lead-para { color: var(--text); margin-top: 24px; max-width: 42ch; font-size: 1.08rem; line-height: 1.6; }
.lead-sub { color: var(--muted); margin-top: 18px; max-width: 42ch; font-size: 0.98rem; }

.method-col { display: flex; flex-direction: column; gap: 30px; }

/* how-I-work: text + steps on the left, standing figure on the right */
.method-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: clamp(28px, 4vw, 72px);
  align-items: end;
  margin-top: clamp(20px, 3.5vh, 36px);
}
.method-text .lead-para { margin-top: 0; }
.method-text .method-list { margin-top: 32px; }

.method-figure {
  position: relative;
  align-self: stretch;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 420px;
  overflow-x: clip;
}
.figure-img {
  position: relative;
  z-index: 1;
  width: auto;
  max-width: 100%;
  height: clamp(540px, 55vw, 740px);
  object-fit: contain;
  object-position: bottom center;
  /* warm, slightly muted treatment so the photo sits in the dark palette */
  filter: saturate(0.88) brightness(0.92) contrast(1.03) sepia(0.06)
          drop-shadow(0 26px 34px oklch(0 0 0 / 0.55));
}
.figure-glow {
  position: absolute;
  z-index: 0;
  bottom: 4%;
  left: 50%;
  transform: translateX(-50%);
  width: 118%;
  height: 82%;
  background: radial-gradient(ellipse at 50% 58%, var(--accent-soft) 0%, transparent 62%);
  pointer-events: none;
}
.method-figure::after {
  content: "";
  position: absolute;
  z-index: 0;
  bottom: 2.5%;
  left: 50%;
  transform: translateX(-50%);
  width: 58%;
  height: 22px;
  border-radius: 50%;
  background: radial-gradient(ellipse, oklch(0 0 0 / 0.6) 0%, transparent 72%);
  filter: blur(7px);
  pointer-events: none;
}
.figure-cap {
  position: absolute;
  z-index: 2;
  left: -2px;
  top: 50%;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
}

.method-list { list-style: none; display: flex; flex-direction: column; }
.method-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding-block: 20px;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.method-step:last-child { border-bottom: 1px solid var(--line); }
.method-step .m-num { font-family: var(--mono); font-size: 13px; color: var(--accent); }
.method-step h4 { font-family: var(--display); font-weight: 500; font-size: 1.3rem; letter-spacing: -0.01em; }
.method-step p { color: var(--muted); margin-top: 6px; font-size: 0.97rem; line-height: 1.5; }

/* ---------- selected client work (secondary) ---------- */
.clientwork .section-head { margin-bottom: clamp(24px, 4vh, 40px); }
.client-list { display: flex; flex-direction: column; }
.client-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding-block: 20px;
  border-top: 1px solid var(--line);
  transition: padding-left 0.4s var(--ease);
}
.client-row:last-child { border-bottom: 1px solid var(--line); }
.client-row:hover { padding-left: 12px; }
.client-main { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.client-name {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: color 0.3s var(--ease);
}
.client-row:hover .client-name { color: var(--accent); }
.client-kind { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.client-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.client-row:hover .client-link { color: var(--text); }
.client-link .ext { transition: transform 0.4s var(--ease); }
.client-row:hover .client-link .ext { transform: translate(2px, -2px); }

/* ---------- final cta ---------- */
.final-cta { text-align: center; position: relative; overflow: hidden; }
.final-cta .hero-glow { top: auto; bottom: -30%; left: 50%; transform: translateX(-50%); right: auto; }
.cta-headline {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.4rem, 5.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  max-width: 20ch;
  margin-inline: auto;
}
.cta-headline em { font-style: italic; color: var(--accent); }
.cta-sub { color: var(--muted); margin-top: 24px; max-width: 48ch; margin-inline: auto; font-size: 1.1rem; }
.cta-actions { margin-top: 38px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 56px 40px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.footer-brand { font-family: var(--display); font-size: 1.6rem; max-width: 24ch; line-height: 1.2; }
.footer-cols { display: flex; gap: clamp(40px, 6vw, 90px); flex-wrap: wrap; }
.footer-col h5 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 16px;
  white-space: nowrap;
}
.footer-col a { display: block; color: var(--muted); padding-block: 5px; transition: color 0.3s var(--ease); font-size: 14.5px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 48px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}

/* ---------- booking modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: oklch(0.1 0.004 80 / 0.6);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s var(--ease);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-backdrop.open { opacity: 1; pointer-events: auto; }
.modal {
  width: 100%;
  max-width: 860px;
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  transform: translateY(24px) scale(0.98);
  opacity: 0;
  transition: transform 0.5s var(--ease), opacity 0.5s var(--ease);
  max-height: 90vh;
}
.modal-backdrop.open .modal { transform: none; opacity: 1; }
.modal-aside {
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  padding: 36px 32px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
.modal-aside .kicker { margin-bottom: 22px; }
.modal-aside h3 { font-family: var(--display); font-weight: 500; font-size: 1.9rem; line-height: 1.1; letter-spacing: -0.02em; }
.modal-aside p { color: var(--muted); margin-top: 16px; font-size: 0.96rem; }
.modal-aside .meet-meta { margin-top: auto; padding-top: 28px; display: flex; flex-direction: column; gap: 12px; }
.modal-aside .meet-meta div { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--muted); }
.modal-aside .meet-meta .ic { width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 7px; display: grid; place-items: center; color: var(--accent); font-family: var(--mono); font-size: 12px; flex: none; }

.modal-body { padding: 32px; overflow-y: auto; }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-head .month { font-family: var(--display); font-size: 1.25rem; }
.modal-close {
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  width: 34px; height: 34px; border-radius: 8px; cursor: pointer; font-size: 16px;
  transition: all 0.3s var(--ease);
}
.modal-close:hover { border-color: var(--text); color: var(--text); }

.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal-grid .dow { font-family: var(--mono); font-size: 10.5px; color: var(--faint); text-align: center; padding-bottom: 6px; letter-spacing: 0.05em; }
.cal-day {
  aspect-ratio: 1;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 8px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.cal-day.muted { color: var(--faint); opacity: 0.4; cursor: default; }
.cal-day.avail:hover { background: var(--surface); border-color: var(--line-strong); }
.cal-day.selected { background: var(--accent); color: var(--accent-ink); font-weight: 700; }

.slots { margin-top: 26px; }
.slots h4 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); margin-bottom: 14px; }
.slot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.slot {
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.slot:hover { border-color: var(--accent); color: var(--accent); }
.slot.selected { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.modal-confirm { margin-top: 22px; }
.modal-confirm .btn { width: 100%; justify-content: center; }
.modal-foot-note { margin-top: 14px; text-align: center; font-family: var(--mono); font-size: 11px; color: var(--faint); }

/* ---------- scroll reveal ----------
   Default = visible. The hidden state only engages once JS adds
   .reveal-ready to <html> (which it does only after confirming
   animation frames actually run), so content can never get stuck
   invisible in environments that freeze CSS transitions. */
.r {
  opacity: 1;
  transform: none;
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0s);
}
html.reveal-ready .r:not(.in) {
  opacity: 0;
  transform: translateY(26px);
}
@media (prefers-reduced-motion: reduce) {
  html.reveal-ready .r:not(.in) { opacity: 1; transform: none; }
  .marquee { animation: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .work-item { grid-template-columns: 76px 1fr; }
  .work-idx { white-space: nowrap; }
  .work-thumb { display: none; }
  .feature-article { grid-template-columns: 1fr; }
  .fa-visual { min-height: 180px; order: -1; }
  .principles { grid-template-columns: 1fr; }
  .method-col { order: -1; }
  .method-layout { grid-template-columns: 1fr 300px; gap: 32px; }
  .cap-1, .cap-2, .cap-3, .cap-4 { grid-column: span 6; }
  .modal { grid-template-columns: 1fr; max-height: 92vh; overflow-y: auto; }
  .modal-aside { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 720px) {
  body { font-size: 16.5px; }
  .header-inner { height: 64px; }
  .nav-links { display: none; }
  .brand .name span { display: none; }
  .cap-grid { grid-template-columns: 1fr; }
  .cap-1, .cap-2, .cap-3, .cap-4 { grid-column: span 1; }
  .nav .btn-ghost { display: none; }
  .slot-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding-block: clamp(56px, 9vh, 96px); }
  .hero-proof { gap: 12px 22px; }
  .work-item { grid-template-columns: 1fr; gap: 4px; }
  .work-idx { padding-top: 0; }
  .client-main { gap: 4px 14px; }
  .method-layout { grid-template-columns: 1fr; }
  .method-figure { order: -1; min-height: 0; justify-content: flex-start; }
  .figure-img { height: clamp(360px, 78vw, 460px); }
  .figure-cap { left: auto; right: -2px; }
}