/* =====================================================
   easy code — Landing Page Styles (pure CSS)
   ===================================================== */

/* ---------- Theme tokens ---------- */
:root {
  --background: oklch(0.99 0.001 260);
  --foreground: oklch(0.12 0.02 260);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.12 0.02 260);
  --primary: oklch(0.42 0.16 265);
  --primary-foreground: oklch(0.99 0.001 0);
  --secondary: oklch(0.68 0.14 200);
  --secondary-foreground: oklch(0.12 0.02 260);
  --muted: oklch(0.94 0.01 260);
  --muted-foreground: oklch(0.48 0.02 260);
  --accent: oklch(0.60 0.15 280);
  --accent-foreground: oklch(0.99 0.001 0);
  --destructive: oklch(0.60 0.23 30);
  --border: oklch(0.90 0.02 260);
  --input: oklch(0.92 0.01 260);
  --ring: oklch(0.50 0.15 265);
  --radius: 0.625rem;

  /* Palette tints used across cards */
  --c-blue: 59 130 246;     /* blue-500 */
  --c-violet: 139 92 246;   /* violet-500 */
  --c-cyan: 6 182 212;      /* cyan-500 */
  --c-emerald: 16 185 129;  /* emerald-500 */
  --c-amber: 245 158 11;    /* amber-500 */
  --c-rose: 244 63 94;      /* rose-500 */
  --c-sky: 14 165 233;      /* sky-500 */
  --c-pink: 236 72 153;     /* pink-500 */
  --c-orange: 249 115 22;   /* orange-500 */

  /* Foreground color variants used for icons */
  --c-blue-fg: 37 99 235;       /* blue-600 */
  --c-violet-fg: 124 58 237;    /* violet-600 */
  --c-cyan-fg: 8 145 178;       /* cyan-600 */
  --c-emerald-fg: 5 150 105;    /* emerald-600 */
  --c-amber-fg: 217 119 6;      /* amber-600 */
  --c-rose-fg: 225 29 72;       /* rose-600 */
  --c-sky-fg: 2 132 199;        /* sky-600 */
  --c-pink-fg: 219 39 119;      /* pink-600 */
  --c-orange-fg: 234 88 12;     /* orange-600 */
}

html.dark {
  --background: oklch(0.11 0.01 260);
  --foreground: oklch(0.98 0.001 0);
  --card: oklch(0.15 0.01 260);
  --card-foreground: oklch(0.98 0.001 0);
  --primary: oklch(0.62 0.18 200);
  --primary-foreground: oklch(0.11 0.01 260);
  --secondary: oklch(0.52 0.12 280);
  --secondary-foreground: oklch(0.98 0.001 0);
  --muted: oklch(0.25 0.01 260);
  --muted-foreground: oklch(0.68 0.02 260);
  --accent: oklch(0.72 0.16 200);
  --accent-foreground: oklch(0.11 0.01 260);
  --destructive: oklch(0.62 0.20 30);
  --border: oklch(0.22 0.02 260);
  --input: oklch(0.18 0.02 260);
  --ring: oklch(0.60 0.16 200);

  /* Lighter icon foreground tones in dark mode (Tailwind's *-400) */
  --c-blue-fg: 96 165 250;
  --c-violet-fg: 167 139 250;
  --c-cyan-fg: 34 211 238;
  --c-emerald-fg: 52 211 153;
  --c-amber-fg: 251 191 36;
  --c-rose-fg: 251 113 133;
  --c-sky-fg: 56 189 248;
  --c-pink-fg: 244 114 182;
  --c-orange-fg: 251 146 60;
}

/* ---------- Reset / base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  border-color: var(--border);
}

html, body {
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }

h1, h2, h3, h4, p { margin: 0; }
ul { list-style: none; padding: 0; margin: 0; }

iconify-icon {
  display: inline-flex;
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
}

/* ---------- Animations ---------- */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes drift-slow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

@keyframes drift-reverse {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 30px) scale(1.05); }
  66% { transform: translate(30px, -20px) scale(0.95); }
}

@keyframes border-flow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes ping-slow {
  0% { transform: scale(1); opacity: 0.6; }
  75%, 100% { transform: scale(2); opacity: 0; }
}

.anim-fade-in-up {
  animation: fade-in-up 0.7s cubic-bezier(0.21, 0.99, 0.33, 1) both;
}

.anim-drift-slow { animation: drift-slow 18s ease-in-out infinite; }
.anim-drift-reverse { animation: drift-reverse 22s ease-in-out infinite; }

.anim-border-flow {
  background-size: 200% 200%;
  animation: border-flow 6s ease infinite;
}

/* Reveal: hidden by default, plays animation when .is-visible is added */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s cubic-bezier(0.21, 0.99, 0.33, 1),
    transform 0.7s cubic-bezier(0.21, 0.99, 0.33, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Backgrounds (mesh / grid / dots) ---------- */
.hero-bg-mesh,
.ax-guide-mesh,
.consulting-mesh,
.final-mesh {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(at 27% 37%, oklch(0.62 0.18 265 / 0.18) 0px, transparent 50%),
    radial-gradient(at 97% 21%, oklch(0.68 0.14 200 / 0.15) 0px, transparent 50%),
    radial-gradient(at 52% 99%, oklch(0.60 0.15 280 / 0.18) 0px, transparent 50%),
    radial-gradient(at 10% 80%, oklch(0.62 0.18 200 / 0.12) 0px, transparent 50%);
  pointer-events: none;
}

.hero-bg-mesh { opacity: 0.8; }
.ax-guide-mesh { opacity: 0.4; }
.consulting-mesh { opacity: 0.5; }
.final-mesh { opacity: 0.6; }

.hero-bg-grid,
.final-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
          mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
  pointer-events: none;
}
.hero-bg-grid { opacity: 0.3; }
.final-grid { opacity: 0.25; }

.consulting-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
          mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  opacity: 0.2;
  pointer-events: none;
}

.ax-guide-tint {
  position: absolute;
  inset: 0;
  background-color: color-mix(in oklab, var(--muted) 30%, transparent);
  pointer-events: none;
}

/* ---------- Orbs ---------- */
.orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 9999px;
  filter: blur(64px);
}
.orb-hero-1 {
  top: -5rem;
  left: 25%;
  width: 24rem;
  height: 24rem;
  opacity: 0.5;
  background: radial-gradient(circle, oklch(0.62 0.18 265 / 0.5) 0%, transparent 70%);
}
.orb-hero-2 {
  top: 10rem;
  right: 2.5rem;
  width: 20rem;
  height: 20rem;
  opacity: 0.4;
  background: radial-gradient(circle, oklch(0.68 0.14 200 / 0.5) 0%, transparent 70%);
}
.orb-hero-3 {
  bottom: 0;
  left: 2.5rem;
  width: 18rem;
  height: 18rem;
  opacity: 0.3;
  background: radial-gradient(circle, oklch(0.60 0.15 280 / 0.5) 0%, transparent 70%);
}
.orb-final-1 {
  top: 2.5rem;
  left: 25%;
  width: 24rem;
  height: 24rem;
  opacity: 0.4;
  background: radial-gradient(circle, oklch(0.62 0.18 265 / 0.5) 0%, transparent 70%);
}
.orb-final-2 {
  bottom: 0;
  right: 25%;
  width: 20rem;
  height: 20rem;
  opacity: 0.4;
  background: radial-gradient(circle, oklch(0.68 0.14 200 / 0.5) 0%, transparent 70%);
}

/* ---------- Gradient text ---------- */
.grad-text,
.grad-text-flow,
.grad-text-tri {
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.grad-text {
  background-image: linear-gradient(to right, var(--primary), var(--accent));
}
.grad-text-flow {
  background-image: linear-gradient(to right, var(--primary), var(--accent), var(--primary));
  background-size: 200% 200%;
  animation: border-flow 6s ease infinite;
}
.grad-text-tri {
  background-image: linear-gradient(to right, var(--primary), var(--accent), var(--secondary));
}

/* =====================================================
   NAV
   ===================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--background) 85%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) { .nav-container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .nav-container { padding: 0 2rem; } }

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
}
.nav-logo {
  display: block;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.625rem;
  box-shadow: 0 4px 16px -4px oklch(0.62 0.18 265 / 0.35);
}
.nav-brand-name {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--foreground);
}

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

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  height: 2.25rem;
  padding: 0 0.875rem;
  border-radius: 0.4375rem;
  border: 1px solid var(--border);
  background-color: var(--background);
  color: var(--foreground);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.theme-toggle:hover {
  background-color: color-mix(in oklab, var(--accent) 6%, var(--background));
  border-color: color-mix(in oklab, var(--foreground) 25%, var(--border));
}
.theme-toggle .theme-icon { font-size: 1rem; }

/* =====================================================
   HERO
   ===================================================== */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
}
.hero-content {
  position: relative;
  max-width: 80rem;
  margin: 0 auto;
  padding: 6rem 1rem 7rem;
}
@media (min-width: 640px) { .hero-content { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) {
  .hero-content { padding: 8rem 2rem; }
}

.hero-inner {
  max-width: 56rem;
  margin: 0 auto;
}

/* Eyebrow */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  border-radius: 9999px;
  padding: 0.375rem 1rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.eyebrow-primary {
  border: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  background-color: color-mix(in oklab, var(--primary) 5%, transparent);
  color: var(--primary);
}

.dot-ping {
  position: relative;
  display: inline-flex;
  width: 0.5rem;
  height: 0.5rem;
}
.dot-ping-ring {
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  background-color: var(--primary);
  opacity: 0.75;
  animation: ping-slow 2.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}
.dot-ping-core {
  position: relative;
  display: inline-flex;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background-color: var(--primary);
}

/* Hero title */
.hero-title {
  margin-top: 1.75rem;
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--foreground);
}
@media (min-width: 640px) { .hero-title { font-size: 3rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 3.75rem; } }

.hero-sub {
  margin-top: 1.75rem;
  max-width: 48rem;
  font-size: 1rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}
@media (min-width: 640px) { .hero-sub { font-size: 1.125rem; } }

.hero-tags {
  margin-top: 3.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  border-radius: 0.375rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--background) 40%, transparent);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}
.hero-tag iconify-icon { font-size: 0.875rem; }
.hero-tag:hover {
  border-color: color-mix(in oklab, var(--primary) 40%, transparent);
  color: var(--foreground);
  background-color: color-mix(in oklab, var(--background) 60%, transparent);
}

/* Statement card */
.statement-card {
  position: relative;
  margin: 5rem auto 0;
  max-width: 56rem;
}
.statement-glow {
  position: absolute;
  inset: -1px;
  border-radius: 1rem;
  background: linear-gradient(to right,
    color-mix(in oklab, var(--primary) 40%, transparent),
    color-mix(in oklab, var(--accent) 40%, transparent),
    color-mix(in oklab, var(--primary) 40%, transparent));
  opacity: 0.5;
  filter: blur(12px);
}
.statement-card-inner {
  position: relative;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--card) 80%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 2rem;
}
@media (min-width: 640px) { .statement-card-inner { padding: 2.5rem; } }

.statement-tag {
  position: absolute;
  top: -0.75rem;
  left: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background-color: var(--background);
  padding: 0.25rem 0.75rem;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--muted-foreground);
}
.statement-tag iconify-icon { color: var(--primary); font-size: 0.75rem; }

.statement-title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--foreground);
}
@media (min-width: 640px) { .statement-title { font-size: 1.875rem; } }

.statement-desc {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}
@media (min-width: 640px) { .statement-desc { font-size: 1rem; } }

/* =====================================================
   SECTION (common)
   ===================================================== */
.section {
  position: relative;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
  padding: 6rem 0;
  overflow: hidden;
}
@media (min-width: 640px) { .section { padding: 8rem 0; } }

.section-container {
  position: relative;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) { .section-container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .section-container { padding: 0 2rem; } }

.section-header { max-width: 42rem; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--background) 40%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.25rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-foreground);
}
.section-eyebrow-dot {
  display: inline-block;
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 9999px;
  background-color: var(--foreground);
}
.section-title {
  margin-top: 1.25rem;
  font-size: 1.875rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--foreground);
}
@media (min-width: 640px) { .section-title { font-size: 2.25rem; } }
@media (min-width: 1024px) { .section-title { font-size: 3rem; } }

.section-desc {
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}
@media (min-width: 640px) { .section-desc { font-size: 1.125rem; } }

/* =====================================================
   AX DEFINITION
   ===================================================== */
.ax-def-line {
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background-image: linear-gradient(to right, transparent,
    color-mix(in oklab, var(--primary) 30%, transparent), transparent);
}
.def-grid {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 640px) { .def-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .def-grid { grid-template-columns: repeat(3, 1fr); } }

.def-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  height: 100%;
  border-radius: 0.75rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--card) 40%, transparent);
  padding: 1.25rem;
  transition: transform 0.3s, border-color 0.3s, background-color 0.3s, box-shadow 0.3s;
}
.def-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--foreground) 20%, var(--border));
  background-color: var(--card);
  box-shadow: 0 10px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.08);
}
.def-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.75rem;
  font-size: 1.25rem;
  transition: transform 0.3s;
}
.def-card:hover .def-icon { transform: scale(1.1); }
.def-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  line-height: 1.625;
  padding-top: 0.5rem;
}

/* Quote block */
.quote-block {
  margin-top: 4rem;
  margin-inline: auto;
  max-width: 48rem;
  position: relative;
}
.quote-bg {
  position: absolute;
  inset: 0;
  border-radius: 1rem;
  background-image: linear-gradient(to bottom right,
    color-mix(in oklab, var(--primary) 10%, transparent),
    color-mix(in oklab, var(--accent) 10%, transparent),
    color-mix(in oklab, var(--secondary) 10%, transparent));
}
.quote-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.3;
  border-radius: 1rem;
}
.quote-inner {
  position: relative;
  border: 1px solid color-mix(in oklab, var(--foreground) 10%, transparent);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
}
@media (min-width: 640px) { .quote-inner { padding: 2.5rem; } }
.quote-icon {
  position: absolute;
  font-size: 1.5rem;
  color: color-mix(in oklab, var(--primary) 40%, transparent);
}
.quote-icon-tl { top: 1rem; left: 1rem; }
.quote-icon-br { bottom: 1rem; right: 1rem; }
.quote-text {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.4;
  color: var(--foreground);
}
@media (min-width: 640px) { .quote-text { font-size: 1.5rem; } }

/* =====================================================
   AX GUIDE PREVIEW
   ===================================================== */
.guide-header {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .guide-header { flex-direction: row; align-items: flex-end; justify-content: space-between; }
}

.usecase-grid {
  margin-top: 3.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 768px) { .usecase-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .usecase-grid { grid-template-columns: repeat(3, 1fr); } }

.usecase-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: var(--card);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.usecase-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--foreground) 20%, var(--border));
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}
.usecase-overlay {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.usecase-card:hover .usecase-overlay { opacity: 1; }
.usecase-content {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.5rem;
}
.usecase-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.usecase-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  font-size: 1.5rem;
  transition: transform 0.3s;
}
.usecase-card:hover .usecase-icon { transform: scale(1.1) rotate(3deg); }
.usecase-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--foreground);
  line-height: 1.25;
  padding-top: 0.625rem;
}
.usecase-desc {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.625;
  margin-bottom: 1.25rem;
}
.usecase-examples {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
}
.usecase-examples-label {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-foreground);
  margin-bottom: 0.75rem;
}
.usecase-list { display: flex; flex-direction: column; gap: 0.375rem; }
.usecase-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: color-mix(in oklab, var(--foreground) 80%, transparent);
}
.usecase-list li iconify-icon {
  font-size: 0.875rem;
  margin-top: 0.125rem;
  flex-shrink: 0;
  opacity: 0.7;
}
.usecase-list li span { line-height: 1.625; }
.more-text {
  font-size: 0.75rem;
  font-weight: 500;
  padding-left: 1.375rem;
}

/* =====================================================
   AX TECH STACK
   ===================================================== */
.stack-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 768px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }

.stack-card {
  position: relative;
  height: 100%;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: var(--card);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.stack-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--foreground) 20%, var(--border));
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.15);
}
.stack-overlay {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.stack-card:hover .stack-overlay { opacity: 1; }
.stack-top-line {
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background-image: linear-gradient(to right, transparent,
    color-mix(in oklab, var(--primary) 50%, transparent), transparent);
  opacity: 0;
  transition: opacity 0.5s;
}
.stack-card:hover .stack-top-line { opacity: 1; }
.stack-content { position: relative; padding: 1.5rem; }
.stack-head { display: flex; align-items: flex-start; gap: 1rem; }
.stack-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  font-size: 1.5rem;
  transition: transform 0.3s;
}
.stack-card:hover .stack-icon { transform: scale(1.1) rotate(3deg); }
.stack-text { flex: 1; min-width: 0; }
.stack-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--foreground);
  line-height: 1.25;
}
.stack-desc {
  margin-top: 0.375rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}
.stack-items {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.stack-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 0.375rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--background) 40%, transparent);
  padding: 0.25rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 500;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--muted-foreground);
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}
.stack-chip:hover {
  background-color: color-mix(in oklab, var(--foreground) 5%, transparent);
  color: var(--foreground);
  border-color: color-mix(in oklab, var(--foreground) 30%, var(--border));
}

.brand-notice {
  margin-top: 3rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--muted) 30%, transparent);
  padding: 1rem 1.25rem;
}
.brand-notice iconify-icon {
  font-size: 1rem;
  margin-top: 0.125rem;
  flex-shrink: 0;
  color: var(--muted-foreground);
}
.brand-notice p {
  font-size: 0.75rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}

/* =====================================================
   CONSULTING PROCESS
   ===================================================== */
.process-desktop { display: none; margin-top: 5rem; }
.process-mobile {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
@media (min-width: 1024px) {
  .process-desktop { display: block; }
  .process-mobile { display: none; }
}

.process-desktop > div { position: relative; }
.process-line {
  position: absolute;
  top: 2.25rem;
  left: 10%;
  right: 10%;
  height: 1px;
  background-image: linear-gradient(to right, transparent,
    color-mix(in oklab, var(--primary) 40%, transparent), transparent);
}
.process-line-flow {
  background-image: linear-gradient(to right, transparent,
    var(--accent), transparent);
  opacity: 0.6;
}
.process-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.process-step { position: relative; text-align: center; }
.process-circle-wrap {
  position: relative;
  display: inline-flex;
}
.process-circle-glow {
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  filter: blur(20px);
  transform: scale(1.25);
  opacity: 0.7;
}
.process-circle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background-color: var(--card);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  transition: transform 0.3s;
  font-size: 1.75rem;
}
.process-circle::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 9999px;
  border: 4px solid transparent;
  background: var(--background);
  z-index: -2;
}
.process-circle { box-shadow: 0 0 0 2px var(--background), 0 0 0 6px var(--ring-color, transparent), 0 10px 15px -3px rgb(0 0 0 / 0.1); }
.process-circle.ring-blue { --ring-color: rgb(var(--c-blue) / 0.3); }
.process-circle.ring-violet { --ring-color: rgb(var(--c-violet) / 0.3); }
.process-circle.ring-cyan { --ring-color: rgb(var(--c-cyan) / 0.3); }
.process-circle.ring-emerald { --ring-color: rgb(var(--c-emerald) / 0.3); }
.process-circle.ring-amber { --ring-color: rgb(var(--c-amber) / 0.3); }
.process-circle:hover { transform: scale(1.1); }

.process-meta { margin-top: 1.5rem; }
.process-step-label {
  font-size: 0.6875rem;
  font-weight: 600;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.1em;
}
.process-title {
  margin-top: 0.25rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--foreground);
}
.process-desc {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}

/* Mobile process */
.m-step {
  display: flex;
  gap: 1rem;
  position: relative;
}
.m-step-side {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.m-step-circle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background-color: var(--card);
  font-size: 1.25rem;
  box-shadow: 0 0 0 2px var(--background), 0 0 0 6px var(--ring-color, transparent);
}
.m-step-circle.ring-blue { --ring-color: rgb(var(--c-blue) / 0.3); }
.m-step-circle.ring-violet { --ring-color: rgb(var(--c-violet) / 0.3); }
.m-step-circle.ring-cyan { --ring-color: rgb(var(--c-cyan) / 0.3); }
.m-step-circle.ring-emerald { --ring-color: rgb(var(--c-emerald) / 0.3); }
.m-step-circle.ring-amber { --ring-color: rgb(var(--c-amber) / 0.3); }
.m-step-line {
  width: 1px;
  flex: 1;
  margin: 0.5rem 0;
  background-image: linear-gradient(to bottom, var(--border), transparent);
}
.m-step-body { flex: 1; padding-bottom: 1.5rem; }
.m-step-label {
  font-size: 0.625rem;
  font-weight: 600;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.1em;
}

/* =====================================================
   AX BENEFITS
   ===================================================== */
.benefits-grid {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 640px) { .benefits-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .benefits-grid { grid-template-columns: repeat(3, 1fr); } }

.benefit-card {
  position: relative;
  height: 100%;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: var(--card);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.benefit-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--foreground) 20%, var(--border));
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.15);
}
.benefit-overlay {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.benefit-card:hover .benefit-overlay { opacity: 1; }
.benefit-content { position: relative; padding: 1.75rem; }
.benefit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: transform 0.3s;
}
.benefit-card:hover .benefit-icon { transform: scale(1.1) rotate(3deg); }
.benefit-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}
.benefit-desc {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}

/* =====================================================
   FINAL CLOSING
   ===================================================== */
.final-cta { text-align: center; }
.final-container {
  position: relative;
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1rem;
  text-align: center;
}
@media (min-width: 640px) { .final-container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .final-container { padding: 0 2rem; } }

.final-title {
  margin-top: 1.75rem;
  font-size: 1.875rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--foreground);
}
@media (min-width: 640px) { .final-title { font-size: 2.25rem; } }
@media (min-width: 1024px) { .final-title { font-size: 3rem; } }

.final-desc {
  margin: 1.5rem auto 0;
  max-width: 32rem;
  font-size: 1rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}
@media (min-width: 640px) { .final-desc { font-size: 1.125rem; } }

.final-info {
  margin-top: 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}
@media (min-width: 640px) {
  .final-info { flex-direction: row; gap: 2.5rem; }
}
.final-info-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.final-info-item iconify-icon { font-size: 1rem; }
.final-info-divider {
  display: none;
  width: 1px;
  height: 1rem;
  background-color: var(--border);
}
@media (min-width: 640px) { .final-info-divider { display: block; } }

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  position: relative;
  background-color: color-mix(in oklab, var(--muted) 20%, transparent);
}
.footer-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 4rem 1rem;
}
@media (min-width: 640px) { .footer-container { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) { .footer-container { padding-left: 2rem; padding-right: 2rem; } }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: repeat(6, 1fr); } }

.footer-brand { grid-column: span 2 / span 2; }
.footer-brand-name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--foreground);
}
.footer-brand-desc {
  margin-top: 1rem;
  max-width: 20rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.625;
}
.footer-socials {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.footer-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background-color: color-mix(in oklab, var(--background) 40%, transparent);
  color: var(--muted-foreground);
  transition: color 0.2s, border-color 0.2s;
  font-size: 1rem;
}
.footer-social:hover {
  color: var(--foreground);
  border-color: color-mix(in oklab, var(--foreground) 30%, var(--border));
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-foreground);
  margin-bottom: 1rem;
}
.footer-col-links { display: flex; flex-direction: column; gap: 0.625rem; }
.footer-col-links a {
  font-size: 0.875rem;
  color: color-mix(in oklab, var(--foreground) 80%, transparent);
  transition: color 0.2s;
}
.footer-col-links a:hover { color: var(--foreground); }

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid color-mix(in oklab, var(--border) 40%, transparent);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
@media (min-width: 640px) { .footer-bottom { flex-direction: row; } }
.footer-copy {
  font-size: 0.75rem;
  color: var(--muted-foreground);
}
.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--muted-foreground);
}
.footer-bottom-links a { transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--foreground); }

/* =====================================================
   COLOR TINTS (icon backgrounds + colors)
   ===================================================== */
.tint-blue    { background-color: rgb(var(--c-blue) / 0.10);    color: rgb(var(--c-blue-fg)); }
.tint-violet  { background-color: rgb(var(--c-violet) / 0.10);  color: rgb(var(--c-violet-fg)); }
.tint-cyan    { background-color: rgb(var(--c-cyan) / 0.10);    color: rgb(var(--c-cyan-fg)); }
.tint-emerald { background-color: rgb(var(--c-emerald) / 0.10); color: rgb(var(--c-emerald-fg)); }
.tint-amber   { background-color: rgb(var(--c-amber) / 0.10);   color: rgb(var(--c-amber-fg)); }
.tint-rose    { background-color: rgb(var(--c-rose) / 0.10);    color: rgb(var(--c-rose-fg)); }
.tint-sky     { background-color: rgb(var(--c-sky) / 0.10);     color: rgb(var(--c-sky-fg)); }
.tint-pink    { background-color: rgb(var(--c-pink) / 0.10);    color: rgb(var(--c-pink-fg)); }
.tint-orange  { background-color: rgb(var(--c-orange) / 0.10);  color: rgb(var(--c-orange-fg)); }

.tint-blue-blur    { background-color: rgb(var(--c-blue) / 0.10); }
.tint-violet-blur  { background-color: rgb(var(--c-violet) / 0.10); }
.tint-cyan-blur    { background-color: rgb(var(--c-cyan) / 0.10); }
.tint-emerald-blur { background-color: rgb(var(--c-emerald) / 0.10); }
.tint-amber-blur   { background-color: rgb(var(--c-amber) / 0.10); }

.text-blue    { color: rgb(var(--c-blue-fg)); }
.text-violet  { color: rgb(var(--c-violet-fg)); }
.text-cyan    { color: rgb(var(--c-cyan-fg)); }
.text-emerald { color: rgb(var(--c-emerald-fg)); }
.text-amber   { color: rgb(var(--c-amber-fg)); }
.text-rose    { color: rgb(var(--c-rose-fg)); }
.text-primary { color: var(--primary); }
.text-accent  { color: var(--accent); }

.check-blue    { color: rgb(var(--c-blue-fg)); }
.check-violet  { color: rgb(var(--c-violet-fg)); }
.check-cyan    { color: rgb(var(--c-cyan-fg)); }
.check-emerald { color: rgb(var(--c-emerald-fg)); }
.check-amber   { color: rgb(var(--c-amber-fg)); }

.more-blue    { color: rgb(var(--c-blue-fg)); }
.more-violet  { color: rgb(var(--c-violet-fg)); }
.more-cyan    { color: rgb(var(--c-cyan-fg)); }
.more-emerald { color: rgb(var(--c-emerald-fg)); }
.more-amber   { color: rgb(var(--c-amber-fg)); }

/* Card background gradients (overlay shown on hover) */
.grad-blue   .usecase-overlay,
.grad-blue   .stack-overlay,
.grad-blue   .benefit-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-blue) / 0.15), rgb(var(--c-blue) / 0.05), transparent);
}
.grad-violet .usecase-overlay,
.grad-violet .stack-overlay,
.grad-violet .benefit-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-violet) / 0.15), rgb(var(--c-violet) / 0.05), transparent);
}
.grad-cyan   .usecase-overlay,
.grad-cyan   .stack-overlay,
.grad-cyan   .benefit-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-cyan) / 0.15), rgb(var(--c-cyan) / 0.05), transparent);
}
.grad-emerald .usecase-overlay,
.grad-emerald .stack-overlay,
.grad-emerald .benefit-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-emerald) / 0.15), rgb(var(--c-emerald) / 0.05), transparent);
}
.grad-amber  .usecase-overlay,
.grad-amber  .stack-overlay,
.grad-amber  .benefit-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-amber) / 0.15), rgb(var(--c-amber) / 0.05), transparent);
}
.grad-rose   .usecase-overlay,
.grad-rose   .stack-overlay,
.grad-rose   .benefit-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-rose) / 0.15), rgb(var(--c-rose) / 0.05), transparent);
}
.grad-sky    .stack-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-sky) / 0.15), rgb(var(--c-sky) / 0.05), transparent);
}
.grad-pink   .stack-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-pink) / 0.15), rgb(var(--c-pink) / 0.05), transparent);
}
.grad-orange .stack-overlay {
  background-image: linear-gradient(to bottom right,
    rgb(var(--c-orange) / 0.15), rgb(var(--c-orange) / 0.05), transparent);
}