/* ==========================================================================
   PersonaInn — personainn.com
   Hand-written CSS. No frameworks, no build step, no external requests.

    1. Tokens          7. Services
    2. Base            8. Process
    3. Layout          9. Work / case studies
    4. Header + menu  10. Stack, About, FAQ
    5. Buttons        11. Contact + footer
    6. Hero + stats   12. Motion, responsive, print
   ========================================================================== */

/* -------------------------------------------------------------- 1. Tokens */

:root {
  --bg:            #ffffff;
  --bg-alt:        #f7f7fb;
  --surface:       #ffffff;
  --surface-2:     #f9f9fd;
  --text:          #0f0f16;
  --text-soft:     #33333f;
  --muted:         #61617a;
  --faint:         #8b8ba3;
  --border:        #e7e7f0;
  --border-strong: #d4d4e2;

  --accent:        #5348e0;
  --accent-2:      #8b5cf6;
  --accent-text:   #4a3fd4;
  --accent-soft:   rgba(83, 72, 224, 0.08);
  --accent-line:   rgba(83, 72, 224, 0.22);
  --on-accent:     #ffffff;

  --ink-panel:     #11111a;   /* dark panels that stay dark in both themes */
  --ink-panel-2:   #1a1a28;

  --shadow-sm: 0 1px 2px rgba(16, 16, 40, 0.05);
  --shadow-md: 0 8px 24px -10px rgba(16, 16, 40, 0.14), 0 2px 6px rgba(16, 16, 40, 0.04);
  --shadow-lg: 0 28px 60px -24px rgba(30, 24, 90, 0.28), 0 8px 20px -12px rgba(16, 16, 40, 0.12);
  --shadow-xl: 0 44px 90px -36px rgba(30, 24, 90, 0.38), 0 12px 28px -16px rgba(16, 16, 40, 0.16);

  --glow-1: rgba(99, 102, 241, 0.30);
  --glow-2: rgba(139, 92, 246, 0.22);
  --grid:   rgba(20, 20, 60, 0.045);

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
               "Liberation Mono", monospace;

  --shell: 1140px;
  --gutter: clamp(1.15rem, 4.5vw, 2.5rem);
  --radius-sm: 10px;
  --radius:    14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --header-h: 4.5rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:            #08080c;
    --bg-alt:        #0d0d14;
    --surface:       #101019;
    --surface-2:     #15151f;
    --text:          #f5f5f9;
    --text-soft:     #d6d6e2;
    --muted:         #9494ad;
    --faint:         #6e6e88;
    --border:        #22222e;
    --border-strong: #32324a;

    --accent:        #8b87ff;
    --accent-2:      #b39bff;
    --accent-text:   #aaa6ff;
    --accent-soft:   rgba(139, 135, 255, 0.12);
    --accent-line:   rgba(139, 135, 255, 0.28);
    --on-accent:     #0c0c14;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 10px 28px -12px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 30px 64px -26px rgba(0, 0, 0, 0.8), 0 10px 24px -14px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 50px 100px -40px rgba(0, 0, 0, 0.9), 0 16px 36px -20px rgba(0, 0, 0, 0.7);

    --glow-1: rgba(99, 102, 241, 0.32);
    --glow-2: rgba(139, 92, 246, 0.22);
    --grid:   rgba(190, 190, 255, 0.05);
  }
}

:root[data-theme="dark"] {
  --bg:            #08080c;
  --bg-alt:        #0d0d14;
  --surface:       #101019;
  --surface-2:     #15151f;
  --text:          #f5f5f9;
  --text-soft:     #d6d6e2;
  --muted:         #9494ad;
  --faint:         #6e6e88;
  --border:        #22222e;
  --border-strong: #32324a;

  --accent:        #8b87ff;
  --accent-2:      #b39bff;
  --accent-text:   #aaa6ff;
  --accent-soft:   rgba(139, 135, 255, 0.12);
  --accent-line:   rgba(139, 135, 255, 0.28);
  --on-accent:     #0c0c14;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 10px 28px -12px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 30px 64px -26px rgba(0, 0, 0, 0.8), 0 10px 24px -14px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 50px 100px -40px rgba(0, 0, 0, 0.9), 0 16px 36px -20px rgba(0, 0, 0, 0.7);

  --glow-1: rgba(99, 102, 241, 0.32);
  --glow-2: rgba(139, 92, 246, 0.22);
  --grid:   rgba(190, 190, 255, 0.05);
}

/* ---------------------------------------------------------------- 2. Base */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.14;
  letter-spacing: -0.024em;
  font-weight: 680;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
strong { font-weight: 650; }

a { color: inherit; text-decoration: none; transition: color 0.18s var(--ease); }
svg { display: block; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 5px;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 200;
  transform: translate(-50%, -130%);
  padding: 0.7rem 1.2rem;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

/* -------------------------------------------------------------- 3. Layout */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(4rem, 9vw, 7rem); }
.section-alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
}

.section-head {
  max-width: 44rem;
  margin-bottom: clamp(2.25rem, 4.5vw, 3.5rem);
}

.section-index {
  display: inline-block;
  margin-bottom: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.section-title {
  font-size: clamp(1.85rem, 4.4vw, 2.7rem);
  margin-bottom: 0.85rem;
}

.section-sub {
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  max-width: 40rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
  padding: 0.36rem 0.9rem 0.36rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-soft);
}
.eyebrow-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ------------------------------------------------------ 4. Header + menu */

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.62rem;
  margin-right: auto;
  font-weight: 670;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 0.52rem;
  flex: none;
  transition: transform 0.35s var(--ease);
}
.brand:hover .brand-mark { transform: rotate(-7deg) scale(1.07); }

.site-nav { display: flex; align-items: center; gap: 0.2rem; }
.site-nav a {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 520;
  color: var(--muted);
}
.site-nav a:hover { color: var(--text); background: var(--accent-soft); }
.site-nav a.is-active { color: var(--accent-text); background: var(--accent-soft); }

.header-actions { display: flex; align-items: center; gap: 0.5rem; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  flex: none;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
              transform 0.18s var(--ease);
}
.theme-toggle:hover {
  color: var(--accent-text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.theme-toggle svg {
  grid-area: 1 / 1;
  width: 1.05rem;
  height: 1.05rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: opacity 0.2s var(--ease), transform 0.3s var(--ease);
}
.icon-moon { opacity: 1; transform: none; }
.icon-sun  { opacity: 0; transform: rotate(-70deg) scale(0.6); }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-moon { opacity: 0; transform: rotate(70deg) scale(0.6); }
  :root:not([data-theme="light"]) .icon-sun  { opacity: 1; transform: none; }
}
:root[data-theme="dark"]  .icon-moon { opacity: 0; transform: rotate(70deg) scale(0.6); }
:root[data-theme="dark"]  .icon-sun  { opacity: 1; transform: none; }
:root[data-theme="light"] .icon-moon { opacity: 1; transform: none; }
:root[data-theme="light"] .icon-sun  { opacity: 0; transform: rotate(-70deg) scale(0.6); }

/* Mobile menu — <details> so it works without JavaScript. */
.menu { display: none; position: relative; }
.menu summary { list-style: none; cursor: pointer; }
.menu summary::-webkit-details-marker { display: none; }

.menu-button {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
}
.menu-bars { display: grid; gap: 0.24rem; width: 1rem; }
.menu-bars i {
  display: block;
  height: 1.6px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.menu[open] .menu-bars i:nth-child(1) { transform: translateY(0.42rem) rotate(45deg); }
.menu[open] .menu-bars i:nth-child(2) { opacity: 0; }
.menu[open] .menu-bars i:nth-child(3) { transform: translateY(-0.42rem) rotate(-45deg); }

.menu-panel {
  position: absolute;
  top: calc(100% + 0.7rem);
  right: 0;
  z-index: 95;
  display: grid;
  gap: 0.15rem;
  min-width: 14rem;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  animation: menu-in 0.18s var(--ease) both;
}
@keyframes menu-in {
  from { opacity: 0; transform: translateY(-6px); }
}
.menu-panel a {
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 540;
  color: var(--text-soft);
}
.menu-panel a:hover { background: var(--accent-soft); color: var(--accent-text); }
.menu-cta {
  margin-top: 0.3rem;
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent) !important;
  font-weight: 620;
}

/* ------------------------------------------------------------- 5. Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 610;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition: transform 0.18s var(--ease), box-shadow 0.22s var(--ease),
              background 0.18s var(--ease), border-color 0.18s var(--ease),
              color 0.18s var(--ease);
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.88rem; }
.btn-lg { padding: 0.9rem 1.6rem; font-size: 1rem; }

.btn-icon {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.22s var(--ease);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-primary:hover .btn-icon { transform: translateX(3px); }

.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

/* -------------------------------------------------------- 6. Hero + stats */

.hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(3rem, 8vw, 5.5rem) clamp(2.5rem, 6vw, 4rem);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: -20% -15% auto -15%;
  height: 150%;
  z-index: -2;
}
.orb {
  position: absolute;
  display: block;
  border-radius: 50%;
  filter: blur(70px);
}
.orb-a {
  width: 46vw; height: 46vw;
  min-width: 320px; min-height: 320px;
  top: -6%; left: 2%;
  background: var(--glow-1);
  animation: float-a 22s ease-in-out infinite alternate;
}
.orb-b {
  width: 38vw; height: 38vw;
  min-width: 260px; min-height: 260px;
  top: 4%; right: 4%;
  background: var(--glow-2);
  animation: float-b 26s ease-in-out infinite alternate;
}
@keyframes float-a { to { transform: translate3d(6%, 8%, 0) scale(1.14); } }
@keyframes float-b { to { transform: translate3d(-7%, 5%, 0) scale(1.1); } }

/* Fine grid, fading out downward. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

/* Grid children default to min-width:auto, which lets long words and the
   monospace rows below push the track wider than its share. */
.hero-copy, .case-main { min-width: 0; }

.hero-title {
  font-size: clamp(2.25rem, 5.6vw, 3.65rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  margin-bottom: 1.25rem;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: clamp(1rem, 1.7vw, 1.12rem);
  line-height: 1.62;
  color: var(--muted);
  max-width: 34rem;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.6rem;
}

.hero-note {
  font-size: 0.85rem;
  color: var(--faint);
  letter-spacing: 0.01em;
}

/* --- The ranking-surface panel ------------------------------------------ */

.engine {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.engine-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.engine-dots { display: flex; gap: 0.32rem; }
.engine-dots i {
  width: 0.55rem; height: 0.55rem;
  border-radius: 999px;
  background: var(--border-strong);
}
.engine-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--faint);
  letter-spacing: 0.02em;
}
.engine-live {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #12a594;
}
.engine-live i {
  width: 0.4rem; height: 0.4rem;
  border-radius: 999px;
  background: currentColor;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.25; transform: scale(0.75); } }

.engine-body { padding: 1.15rem 1.15rem 1.25rem; }

.engine-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.6rem;
}

.engine-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.3rem;
}
.engine-chips li {
  padding: 0.24rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 0.45rem;
  background: var(--surface-2);
  font-size: 0.74rem;
  color: var(--muted);
}

.engine-rows { display: grid; gap: 0.6rem; }
.engine-row {
  display: grid;
  grid-template-columns: 1.1rem 1fr 2.4rem;
  align-items: center;
  gap: 0.7rem;
}
.engine-rank {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--faint);
}
.engine-bar {
  height: 0.55rem;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  overflow: hidden;
}
.engine-bar i {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left;
  transform: scaleX(var(--s));
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: bar-grow 1s var(--ease) both;
}
@keyframes bar-grow { from { transform: scaleX(0); } }
.engine-bar .f1 { --s: 0.94; animation-delay: 0.05s; }
.engine-bar .f2 { --s: 0.88; animation-delay: 0.14s; }
.engine-bar .f3 { --s: 0.71; animation-delay: 0.23s; }
.engine-bar .f4 { --s: 0.63; animation-delay: 0.32s; }
.engine-bar .f5 { --s: 0.49; animation-delay: 0.41s; }
.engine-score {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-soft);
  text-align: right;
}

.engine-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 1.25rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--faint);
}

/* --- 404 ---------------------------------------------------------------- */

.hero-error {
  display: grid;
  align-items: center;
  min-height: 100svh;
}
.error-inner { max-width: 40rem; }
.error-brand { margin: 0 0 2.5rem; }
.hero-error .hero-title { margin-bottom: 1rem; }

/* --- Stats -------------------------------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--border);
  overflow: hidden;
}
.stats li {
  padding: 1.35rem 1.4rem;
  background: var(--surface);
}
.stat-value {
  display: block;
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

/* ------------------------------------------------------------ 7. Services */

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17.5rem), 1fr));
  gap: clamp(0.9rem, 2vw, 1.25rem);
}

.service {
  position: relative;
  isolation: isolate;
  padding: clamp(1.4rem, 2.6vw, 1.8rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
              border-color 0.28s var(--ease);
}
.service::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  background: radial-gradient(110% 80% at 8% 0%, var(--accent-soft), transparent 60%);
  transition: opacity 0.3s var(--ease);
}
.service:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-lg);
}
.service:hover::before { opacity: 1; }

.service-icon {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 1.1rem;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: var(--surface-2);
  color: var(--accent-text);
  transition: border-color 0.28s var(--ease), transform 0.3s var(--ease);
}
.service:hover .service-icon {
  transform: scale(1.06) rotate(-4deg);
  border-color: var(--accent-line);
}
.service-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service h3 {
  font-size: 1.12rem;
  margin-bottom: 0.55rem;
}
.service p {
  font-size: 0.94rem;
  color: var(--muted);
}

/* ------------------------------------------------------------- 8. Process */

.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: clamp(1rem, 2.2vw, 1.5rem);
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 2.6rem;
  border-top: 2px solid var(--border);
}
.step::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 2.2rem;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.step-num {
  position: absolute;
  top: 1rem;
  left: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent-text);
}
.step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.step p {
  font-size: 0.93rem;
  color: var(--muted);
}

/* ------------------------------------------------- 9. Work / case studies */

.case-list { display: grid; gap: clamp(1rem, 2.2vw, 1.5rem); }

.case {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: 1fr 15rem;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding: clamp(1.6rem, 3.2vw, 2.4rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
              border-color 0.3s var(--ease);
  --case-accent: var(--accent);
  --case-accent-2: var(--accent-2);
}
.case::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  background: radial-gradient(90% 120% at 100% 0%,
    color-mix(in srgb, var(--case-accent) 14%, transparent), transparent 58%);
  transition: opacity 0.34s var(--ease);
}
.case::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--case-accent), var(--case-accent-2), transparent);
  transition: transform 0.5s var(--ease);
}
.case:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--case-accent) 40%, var(--border));
  box-shadow: var(--shadow-lg);
}
.case:hover::before { opacity: 1; }
.case:hover::after { transform: scaleX(1); }

.case-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--case-accent);
  margin-bottom: 0.7rem;
}
.case-title {
  font-size: clamp(1.5rem, 3vw, 1.95rem);
  margin-bottom: 0.75rem;
}
.case-summary {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 1.3rem;
  max-width: 38rem;
}

.case-points {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.case-points li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.93rem;
  color: var(--text-soft);
}
.case-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 999px;
  background: var(--case-accent);
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--case-accent);
}
.arrow {
  width: 0.95rem;
  height: 0.95rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.22s var(--ease);
}
.case-link:hover .arrow { transform: translate(2px, -2px); }

.case-side {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
}
.case-badge {
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--case-accent), var(--case-accent-2));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s var(--ease);
}
.case:hover .case-badge { transform: scale(1.06) rotate(-5deg); }

.case-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.case-stack li {
  padding: 0.22rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 0.45rem;
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.case-reviewinn  { --case-accent: #d97e17; --case-accent-2: #f0b429; }
.case-researchar { --case-accent: #0f9c8c; --case-accent-2: #35c2b1; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .case-reviewinn  { --case-accent: #f5b355; --case-accent-2: #ffd166; }
  :root:not([data-theme="light"]) .case-researchar { --case-accent: #3fd0bd; --case-accent-2: #7ce0d3; }
}
:root[data-theme="dark"] .case-reviewinn  { --case-accent: #f5b355; --case-accent-2: #ffd166; }
:root[data-theme="dark"] .case-researchar { --case-accent: #3fd0bd; --case-accent-2: #7ce0d3; }

/* Homepage notes teaser — borrows the .service card so /notes/ needs no
   stylesheet of its own on this page. */
.note-teaser { display: flex; flex-direction: column; }
.note-teaser-meta {
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--faint);
}
.note-teaser h3 { margin-bottom: 0.5rem; }
.note-teaser-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 1.1rem;
  font-size: 0.9rem;
  font-weight: 620;
  color: var(--accent-text);
}
.note-teaser:hover h3 { color: var(--accent-text); }
.note-teaser:hover .arrow { transform: translateX(4px); }

.notes-more { margin-top: clamp(1.25rem, 3vw, 2rem); }

/* ------------------------------------------- 10. Stack, About, FAQ */

/* Fixed column counts that divide the 12 items evenly — auto-fit leaves a
   half-empty last row where the grid's own background shows through. */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--border);
  overflow: hidden;
}
.stack-grid li {
  padding: 1.1rem 1rem;
  background: var(--surface);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text-soft);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.stack-grid li:hover { background: var(--accent-soft); color: var(--accent-text); }

.about {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(1.5rem, 3.5vw, 3rem);
  align-items: start;
}
.about-copy p {
  color: var(--muted);
  margin-bottom: 1.1rem;
  max-width: 38rem;
}

.about-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 0.7rem;
  margin-top: 1.8rem;
}
.mini {
  display: block;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease),
              box-shadow 0.22s var(--ease);
}
.mini:hover {
  transform: translateY(-2px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-md);
}
.mini-label { display: block; font-size: 0.94rem; font-weight: 620; letter-spacing: -0.01em; }
.mini:hover .mini-label { color: var(--accent-text); }
.mini-note { display: block; margin-top: 0.1rem; font-size: 0.8rem; color: var(--muted); }

.about-card {
  padding: clamp(1.4rem, 3vw, 1.9rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(140deg, var(--accent-soft), transparent 55%),
    var(--surface);
  box-shadow: var(--shadow-sm);
}
.about-card h3 { font-size: 1.05rem; margin-bottom: 1rem; }
.focus-list { display: grid; gap: 0.6rem; margin-bottom: 1.5rem; }
.focus-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.93rem;
  color: var(--text-soft);
}
.focus-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.about-affil {
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.5;
}
.about-affil span {
  display: block;
  font-weight: 640;
  color: var(--text);
  font-size: 0.95rem;
}

.faq {
  display: grid;
  gap: 0.7rem;
  max-width: 52rem;
}
.qa {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}
.qa:hover { border-color: var(--border-strong); }
.qa[open] { border-color: var(--accent-line); box-shadow: var(--shadow-md); }

.qa summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.05rem 1.3rem;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.012em;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "";
  flex: none;
  width: 0.6rem;
  height: 0.6rem;
  margin-left: auto;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.qa[open] summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
  border-color: var(--accent-text);
}
.qa p {
  padding: 0 1.3rem 1.25rem;
  color: var(--muted);
  font-size: 0.96rem;
  max-width: 46rem;
}

/* -------------------------------------------- 11. Contact + footer */

.cta {
  position: relative;
  isolation: isolate;
  padding: clamp(2.25rem, 5.5vw, 4rem);
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, var(--ink-panel), var(--ink-panel-2));
  color: #f3f3fa;
  overflow: hidden;
  text-align: center;
}
.cta-glow {
  position: absolute;
  inset: -60% -20% auto -20%;
  height: 180%;
  z-index: -1;
  background:
    radial-gradient(42% 46% at 22% 22%, rgba(99, 102, 241, 0.5), transparent 68%),
    radial-gradient(38% 42% at 82% 78%, rgba(139, 92, 246, 0.42), transparent 70%);
  animation: float-a 20s ease-in-out infinite alternate;
}
.cta .section-index { color: #b0abff; }
.cta-title {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
  max-width: 24ch;
  margin-inline: auto;
}
.cta-text {
  color: #b9b9cf;
  max-width: 42rem;
  margin: 0 auto 2rem;
  font-size: 1.02rem;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.cta .btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
  color: #f3f3fa;
}
.cta .btn-ghost:hover { background: rgba(255, 255, 255, 0.12); }

.site-footer {
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr repeat(3, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  padding-bottom: 2.5rem;
}
.footer-brand .brand-mark { width: 2.2rem; height: 2.2rem; border-radius: 0.6rem; }
.footer-name {
  margin-top: 0.8rem;
  font-weight: 670;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.footer-blurb {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 22rem;
}

.footer-col { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-col h2 {
  font-size: 0.76rem;
  font-weight: 660;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.35rem;
}
.footer-col a { font-size: 0.9rem; color: var(--muted); }
.footer-col a:hover { color: var(--accent-text); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}
.footer-legal a:hover { color: var(--accent-text); }
.footer-sep { opacity: 0.5; }

/* --------------------------------- 12. Motion, responsive, print */

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      animation: rise-in linear both;
      animation-timeline: view();
      /* Ends inside `entry` on purpose: anything already fully in view — even
         on a viewport tall enough that the page barely scrolls — is past this
         point and renders at full opacity. */
      animation-range: entry 0% entry 70%;
    }
  }
}
@keyframes rise-in {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

@media (max-width: 62rem) {
  .hero-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(4, 1fr); }
  .engine { max-width: 30rem; }
  .about { grid-template-columns: 1fr; }
  .case { grid-template-columns: 1fr; }
  .case-side { flex-direction: row; align-items: center; flex-wrap: wrap; gap: 1rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 54rem) {
  .site-nav, .header-cta { display: none; }
  .menu { display: block; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 34rem) {
  :root { --header-h: 3.9rem; }
  .brand-name { display: none; }
  .stats { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .cta { text-align: left; }
  .cta-title, .cta-text { margin-inline: 0; }
  .cta-actions { justify-content: flex-start; }
  .btn { width: 100%; }
  .cta-actions .btn { width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orb, .cta-glow, .engine-live i { animation: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Windows High Contrast: gradient-clipped text renders invisible. */
@media (forced-colors: active) {
  .hero-title em, .stat-value {
    background: none;
    -webkit-text-fill-color: currentColor;
    color: CanvasText;
  }
  .service, .case, .mini, .qa, .stats, .stack-grid { border-color: CanvasText; }
}

@media print {
  .site-header, .theme-toggle, .menu, .hero-canvas, .cta-glow, .engine { display: none; }
  body { background: #fff; color: #000; }
  .service, .case, .qa, .about-card { break-inside: avoid; box-shadow: none; }
  .qa[open] p, .qa p { display: block; }
}