/* =========================================================
   Sustainability & Corporate ROI: borderless editorial theme
   Frosted slate-50 canvas, layered "cloud" surfaces,
   slate-950 type with slate-500 and blue-600 accents.
   Tailwind handles layout utilities; AOS handles scroll motion.
   ========================================================= */

:root {
  --canvas: #f8fafc;          /* slate-50, frosted ice-white */
  --strip: #f1f5f9;           /* slate-100 for layout strips */
  --cloud: #FFFFFF;

  --ink: #020617;             /* slate-950 */
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;

  --blue: #2563eb;            /* blue-600 */
  --blue-soft: rgba(37, 99, 235, 0.08);

  --font-serif: "Cormorant Garamond", ui-serif, Georgia, serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  background: var(--canvas);
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 300;
  overflow-x: hidden;
}

::selection { background: rgba(37, 99, 235, 0.14); color: var(--ink); }

/* Keyboard focus ring (accessibility; not a decorative border) */
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -56px;
  z-index: 60;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 500;
  transition: top 0.3s var(--ease);
}
.skip-link:focus { top: 14px; }

.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;
}

/* ---------- Header ---------- */
.site-header {
  background: rgba(248, 250, 252, 0.82);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
}

.brand {
  font-family: var(--font-serif);
  font-size: 23px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.nav-link {
  position: relative;
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.3s;
}
.nav-link:hover { color: var(--blue); }

/* ---------- Layout strips ----------
   Alternate sections sit on a soft slate-100 band that fades in and
   out at its edges, so sections blend instead of being ruled off.  */
.strip {
  background: linear-gradient(
    180deg,
    rgba(241, 245, 249, 0) 0%,
    var(--strip) 14%,
    var(--strip) 86%,
    rgba(241, 245, 249, 0) 100%
  );
}

/* ---------- Type ---------- */
.eyebrow {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.name-title {
  font-family: var(--font-serif);
  font-size: clamp(54px, 8.6vw, 116px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  color: var(--ink);
}

.lede {
  max-width: 36rem;
  font-family: var(--font-serif);
  font-size: clamp(26px, 2.8vw, 36px);
  font-weight: 600;
  line-height: 1.18;
  color: var(--ink);
}

.heading {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4.4vw, 56px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--ink);
}

/* Accent phrases: soft steel blue */
.accent {
  font-style: italic;
  font-weight: 600;
  color: var(--slate-500);
}

/* ---------- Buttons (filled, no outlines) ---------- */
.btn-dark,
.btn-soft {
  display: inline-flex;
  align-items: center;
  padding: 15px 28px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.35s var(--ease), color 0.35s, box-shadow 0.35s var(--ease);
}
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--blue); box-shadow: 0 14px 30px -14px rgba(37, 99, 235, 0.5); }
.btn-soft {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 10px 30px -14px rgba(15, 23, 42, 0.12);
}
.btn-soft:hover { color: var(--blue); }
.btn-sm { padding: 10px 20px; font-size: 11px; }

.text-link {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: rgba(51, 65, 85, 0.3);
  text-underline-offset: 6px;
  transition: color 0.3s, text-decoration-color 0.3s;
}
.text-link:hover { color: var(--blue); text-decoration-color: var(--blue); }

/* ---------- Hero portrait ---------- */
.portrait-wrap { position: relative; }
/* Soft organic glow behind the photo instead of a frame */
.portrait-halo {
  position: absolute;
  inset: 8% -10% -8% 12%;
  border-radius: 45% 55% 50% 50% / 50% 45% 55% 50%;
  background:
    radial-gradient(60% 60% at 30% 30%, rgba(37, 99, 235, 0.12), transparent 70%),
    radial-gradient(60% 60% at 75% 70%, rgba(51, 65, 85, 0.12), transparent 70%);
  filter: blur(30px);
  pointer-events: none;
}
.portrait img {
  position: relative;
  z-index: 1;
  display: block;
}
.portrait-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-size: 64px;
  font-style: italic;
  font-weight: 600;
  color: rgba(51, 65, 85, 0.25);
}

/* ---------- Cloud surfaces ----------
   Finish comes from the Tailwind classes on each block
   (bg-white/90 backdrop-blur-xl, diffused shadow, rounded-3xl).   */
.cloud { position: relative; }

/* ---------- By the numbers ---------- */
.figure {
  font-family: var(--font-serif);
  font-size: clamp(60px, 6.4vw, 84px);
  font-weight: 700;
  line-height: 1;
  color: var(--blue);
}
.figure-label {
  margin-top: 12px;
  max-width: 280px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--slate-500);
}

/* ---------- Expertise ---------- */
.card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.pill {
  display: inline-flex;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(51, 65, 85, 0.07);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate-500);
}
.pill-accent { background: var(--blue-soft); color: var(--blue); }

.card-title {
  margin-top: 24px;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.08;
  color: var(--ink);
}
.card-body {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
}
.card-meta {
  margin-top: auto;
  padding-top: 24px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-500);
}

/* ---------- CAA story ---------- */
.story {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 44px;
}
.chapter p {
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}
.chapter p + p { margin-top: 16px; }
p.chapter-label {
  margin-bottom: 12px;
  font-family: var(--font-serif);
  font-size: 23px;
  font-style: italic;
  font-weight: 600;
  color: var(--slate-500);
}

.feature { padding: 40px 36px; }
.feature-figure {
  font-family: var(--font-serif);
  font-size: clamp(84px, 10vw, 120px);
  font-weight: 700;
  line-height: 0.9;
  color: var(--ink);
}
.feature figcaption {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}
@media (max-width: 640px) { .feature { padding: 30px 24px; } }

.disclaimer {
  padding: 16px 20px;
  border-radius: 1.25rem;
  background: rgba(51, 65, 85, 0.05);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate-600);
}
.disclaimer-label { font-weight: 500; color: var(--ink); }

/* ---------- Workflow viewer ---------- */
.workflow { overflow: hidden; }
.wf-tabs {
  display: flex;
  gap: 8px;
  padding: 16px 16px 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.wf-tabs::-webkit-scrollbar { display: none; }
.wf-tab {
  flex-shrink: 0;
  padding: 9px 17px;
  border: 0;
  border-radius: 999px;
  background: rgba(51, 65, 85, 0.06);
  font: inherit;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--slate-500);
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}
.wf-tab:hover { background: rgba(51, 65, 85, 0.1); }
.wf-tab[aria-selected="true"] { background: var(--ink); color: #fff; }
.wf-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px 0 26px;
}
.copy-btn {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 0;
  border-radius: 999px;
  background: rgba(51, 65, 85, 0.06);
  font: inherit;
  font-size: 12px;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}
.copy-btn:hover { background: rgba(51, 65, 85, 0.1); }
.copy-btn.is-copied { background: var(--ink); color: #fff; }
.prompt {
  max-height: 420px;
  margin: 0;
  padding: 16px 26px 30px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--slate-600);
  white-space: pre-wrap;
  word-break: break-word;
  scrollbar-color: rgba(51, 65, 85, 0.2) transparent;
}
.is-entering { animation: soft-in 0.6s var(--ease) both; }
@keyframes soft-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ---------- Philosophy ---------- */
.principles {
  display: grid;
  gap: 44px;
  list-style: none;
  padding: 0;
}
.principle {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 32px;
}
.principle-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-style: italic;
  font-weight: 600;
  line-height: 1.15;
  color: var(--slate-500);
}
.principle h3 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.12;
  color: var(--ink);
}
.principle p {
  margin-top: 14px;
  max-width: 680px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}
@media (max-width: 640px) {
  .principle { grid-template-columns: 1fr; gap: 6px; }
}

/* ---------- Experience: case study cards ---------- */
.case {
  display: flex;
  flex-direction: column;
  padding: 12px;
}
.case-media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 1.25rem;
  padding: 28px;
}
.case-media-1 { background: radial-gradient(120% 90% at 20% 0%, rgba(255,255,255,0.18), transparent 55%), linear-gradient(165deg, #64748b, #1e293b); }  /* slate */
.case-media-2 { background: radial-gradient(120% 90% at 80% 0%, rgba(255,255,255,0.22), transparent 55%), linear-gradient(165deg, #7d8ea3, #334155); }  /* slate blue */
.case-media-3 { background: radial-gradient(120% 90% at 50% 0%, rgba(255,255,255,0.16), transparent 55%), linear-gradient(165deg, #3b5b8f, #1e293b); }  /* steel blue */

.case-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.case-media:has(.case-img)::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(2, 6, 23, 0.32);
}
.case-org {
  position: relative;
  z-index: 2;
  max-width: 90%;
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.4vw, 30px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-align: center;
  text-transform: uppercase;
  color: #fff;
  text-wrap: balance;
}
.case-text { padding: 22px 14px 18px; }

.role-date {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate-500);
}
.role-title {
  margin-top: 8px;
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.12;
  color: var(--ink);
}
.role-body {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- Core skills ---------- */
.skill-heading {
  font-family: var(--font-serif);
  font-size: 27px;
  font-weight: 700;
  color: var(--ink);
}
.skill-pill {
  padding: 8px 15px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 8px 20px -12px rgba(15, 23, 42, 0.12);
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink);
  transition: color 0.3s;
}
.skill-pill:hover { color: var(--blue); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .is-entering { animation: none; }
}