/* Ben's AI Garage — shared stylesheet */

:root {
  --surface: #0f1417;
  --surface-lowest: #090f12;
  --surface-low: #171c1f;
  --surface-container: #1b2023;
  --surface-high: #252b2e;
  --surface-highest: #303639;
  --on-surface: #dee3e7;
  --on-surface-muted: #a3b8d0;
  --on-surface-soft: #7d8a9c;
  --primary: #adc7ff;
  --primary-container: #4a8eff;
  --tertiary: #4edea3;
  --outline: #414754;
  --danger: #ff8f8f;
  --space-grotesk: "Space Grotesk", system-ui, sans-serif;
  --manrope: "Manrope", system-ui, sans-serif;
  --inter: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

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

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

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--manrope);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 150ms ease;
}

a:hover { color: var(--tertiary); }

h1, h2, h3, h4 {
  font-family: var(--space-grotesk);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}

p { margin: 0 0 1rem; }

code, pre, .mono {
  font-family: var(--mono);
  font-size: 0.875em;
}

pre {
  background: var(--surface-lowest);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--on-surface);
  margin: 0 0 1.25rem;
}

code {
  background: var(--surface-high);
  padding: 0.1em 0.4em;
  border-radius: 6px;
  color: var(--on-surface);
}

pre code {
  background: none;
  padding: 0;
  border-radius: 0;
}

/* Layout ------------------------------------------------------------- */

.wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.asym {
  max-width: 1200px;
  margin-left: 8%;
  padding-right: 2rem;
}

@media (max-width: 900px) {
  .wrap { padding: 0 1.25rem; }
  .asym { margin-left: 0; padding: 0 1.25rem; }
}

.section {
  padding: 5rem 0;
}

.section--low {
  background: var(--surface-low);
}

.section--lowest {
  background: var(--surface-lowest);
}

/* Nav ---------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: rgba(15, 20, 23, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--space-grotesk);
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--on-surface);
}

.nav__mark {
  width: 36px; height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  display: grid;
  place-items: center;
  color: var(--surface);
  font-weight: 600;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.9375rem;
}

.nav__links a {
  color: var(--on-surface);
}

.nav__links a:hover { color: var(--tertiary); }

.nav__toggle {
  display: none;
  background: none;
  border: 0;
  color: var(--on-surface);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav__links--open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem 2rem 2rem;
    background: rgba(23, 28, 31, 0.95);
    backdrop-filter: blur(14px);
    gap: 1rem;
  }
  .nav__toggle { display: block; }
}

/* Buttons / chips ---------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1.5rem;
  border-radius: 14px;
  font-family: var(--manrope);
  font-size: 0.9375rem;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 200ms ease, background 200ms ease;
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: var(--surface);
}

.btn--primary:hover {
  color: var(--surface);
  transform: translateY(-1px);
  box-shadow: 0 14px 32px -10px rgba(173, 199, 255, 0.45);
}

.btn--ghost {
  background: var(--surface-container);
  color: var(--on-surface);
  border: 1px solid rgba(65, 71, 84, 0.35);
}

.btn--ghost:hover {
  color: var(--tertiary);
  border-color: rgba(78, 222, 163, 0.5);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.875rem;
  background: var(--surface-container);
  border-radius: 999px;
  color: var(--tertiary);
  font-family: var(--inter);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chip__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--tertiary);
  box-shadow: 0 0 10px var(--tertiary);
  animation: pulse 2.2s ease-in-out infinite;
}

.chip--muted {
  color: var(--on-surface-muted);
  background: var(--surface-high);
}

.chip--muted .chip__dot { background: var(--on-surface-muted); box-shadow: none; }

.chip--primary {
  color: var(--primary);
}

.chip--primary .chip__dot { background: var(--primary); box-shadow: 0 0 10px var(--primary); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Section header ----------------------------------------------------- */

.eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--inter);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tertiary);
  margin-bottom: 1rem;
}

.eyebrow__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(78, 222, 163, 0.35), transparent);
}

.h-display {
  font-family: var(--space-grotesk);
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  letter-spacing: -0.035em;
  line-height: 1;
}

.h-section {
  font-family: var(--space-grotesk);
  font-size: clamp(2rem, 3.5vw, 3rem);
  letter-spacing: -0.02em;
}

.h-card {
  font-family: var(--space-grotesk);
  font-size: 1.5rem;
}

.lead {
  font-size: 1.125rem;
  color: var(--on-surface-muted);
  max-width: 62ch;
}

.muted { color: var(--on-surface-muted); }

.tiny {
  font-family: var(--inter);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-surface-muted);
}

/* Glass surface ------------------------------------------------------ */

.glass {
  background: rgba(27, 32, 35, 0.62);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 22px;
}

.tile {
  background: var(--surface-container);
  border-radius: 20px;
  padding: 1.75rem;
}

.tile--deep {
  background: var(--surface-lowest);
}

.tile--high {
  background: var(--surface-high);
}

/* Hero --------------------------------------------------------------- */

.hero {
  padding: 8rem 0 5rem;
  background: radial-gradient(ellipse at top left, rgba(74, 142, 255, 0.08), transparent 50%),
              radial-gradient(ellipse at bottom right, rgba(78, 222, 163, 0.06), transparent 50%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.75rem, 6vw, 5rem);
  letter-spacing: -0.04em;
  margin: 1.25rem 0 1.5rem;
}

.hero__lead {
  font-size: 1.25rem;
  color: var(--on-surface-muted);
  max-width: 48ch;
  margin-bottom: 2rem;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-bottom: 2.75rem;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  font-size: 0.875rem;
  color: var(--on-surface-muted);
}

.hero__meta span {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
}

.hero__visual {
  position: relative;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--surface-low), var(--surface-high));
  border-radius: 28px;
  padding: 2rem;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(173, 199, 255, 0.1), transparent);
  pointer-events: none;
  border-radius: 28px;
}

@media (max-width: 900px) {
  .hero { padding: 6.5rem 0 3rem; }
  .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__visual { max-width: 360px; margin: 0 auto; }
}

/* Rig block --------------------------------------------------------- */

.rig {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 3rem;
  align-items: center;
  padding: 3rem;
  border-radius: 28px;
  background: var(--surface-container);
}

.rig__specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.rig__spec {
  background: var(--surface-lowest);
  border-radius: 16px;
  padding: 1.25rem;
}

.rig__spec strong {
  display: block;
  font-family: var(--space-grotesk);
  font-size: 1.0625rem;
  margin-bottom: 0.35rem;
}

.rig__spec span {
  font-size: 0.8125rem;
  color: var(--on-surface-muted);
}

@media (max-width: 900px) {
  .rig { grid-template-columns: 1fr; padding: 2rem; gap: 2rem; }
  .rig__specs { grid-template-columns: 1fr; }
}

/* Projects grid ------------------------------------------------------ */

.projects-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.project {
  display: flex;
  flex-direction: column;
  background: var(--surface-container);
  border-radius: 22px;
  overflow: hidden;
  transition: transform 250ms ease, box-shadow 250ms ease;
  color: inherit;
  text-decoration: none;
}

.project:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 56px -20px rgba(173, 199, 255, 0.18);
}

.project__thumb {
  aspect-ratio: 16 / 10;
  background: var(--surface-high);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.project__thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(9, 15, 18, 0.6));
  pointer-events: none;
}

.project__thumb-label {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  z-index: 1;
  font-family: var(--inter);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-surface);
}

.project__icon {
  font-size: 4rem;
  filter: drop-shadow(0 12px 22px rgba(0, 0, 0, 0.35));
}

.project__thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure {
  margin: 2rem 0;
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface-lowest);
  border: 1px solid var(--outline);
}
.figure img,
.figure svg,
.figure video {
  display: block;
  width: 100%;
  height: auto;
}
.figure figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  color: var(--on-surface-muted);
  font-family: var(--inter);
  border-top: 1px solid var(--outline);
}
.figure--narrow {
  max-width: 520px;
}
.figure--inline {
  margin: 1rem 0;
}

.project__body {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.project__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.project__title {
  font-family: var(--space-grotesk);
  font-size: 1.375rem;
  color: var(--on-surface);
  margin: 0;
}

.project__sub {
  font-family: var(--inter);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tertiary);
  margin-top: 0.2rem;
}

.project__status {
  font-family: var(--inter);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
}

.project__status--live { background: rgba(78, 222, 163, 0.12); color: var(--tertiary); }
.project__status--wip { background: rgba(173, 199, 255, 0.12); color: var(--primary); }
.project__status--experiment { background: rgba(255, 143, 143, 0.12); color: var(--danger); }

.project__blurb {
  color: var(--on-surface-muted);
  font-size: 0.9375rem;
  margin: 0;
}

.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: auto;
  padding-top: 0.75rem;
}

.project__tag {
  font-family: var(--inter);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--surface-high);
  color: var(--on-surface-muted);
}

/* Feature / step rows ------------------------------------------------ */

.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

@media (max-width: 900px) {
  .two-col, .three-col { grid-template-columns: 1fr; }
}

.step {
  background: var(--surface-container);
  border-radius: 20px;
  padding: 1.75rem;
}

.step__num {
  font-family: var(--space-grotesk);
  font-size: 0.8125rem;
  color: var(--tertiary);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.step h3 {
  font-family: var(--space-grotesk);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.step p { color: var(--on-surface-muted); margin: 0; font-size: 0.9375rem; }

.step ol, .step ul {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
  color: var(--on-surface-muted);
  font-size: 0.9375rem;
}

.step li { margin-bottom: 0.35rem; }

/* Kv list ------------------------------------------------------------ */

.kv {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.kv li {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
  font-size: 0.9375rem;
  padding: 0.65rem 0;
  border-bottom: 1px dashed rgba(65, 71, 84, 0.4);
}

.kv li:last-child { border-bottom: 0; }

.kv dt, .kv .key {
  font-family: var(--inter);
  color: var(--on-surface-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
}

.kv dd, .kv .val {
  margin: 0;
  color: var(--on-surface);
}

/* Callout ------------------------------------------------------------ */

.callout {
  background: var(--surface-container);
  border-radius: 22px;
  padding: 2rem 2.25rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.callout__icon {
  width: 44px; height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  display: grid; place-items: center;
  font-size: 1.25rem;
  color: var(--surface);
  flex-shrink: 0;
}

.callout h3 { margin: 0 0 0.4rem; font-size: 1.125rem; }
.callout p { margin: 0; color: var(--on-surface-muted); font-size: 0.9375rem; }

/* Footer ------------------------------------------------------------- */

.footer {
  background: var(--surface-lowest);
  padding: 3rem 0;
  margin-top: 4rem;
}

.footer__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: center;
  color: var(--on-surface-muted);
  font-size: 0.875rem;
}

.footer__links {
  display: flex;
  gap: 1.75rem;
}

.footer__links a {
  color: var(--on-surface-muted);
}

.footer__links a:hover { color: var(--tertiary); }

/* Utility ------------------------------------------------------------ */

.stack-sm > * + * { margin-top: 0.75rem; }
.stack > * + * { margin-top: 1.25rem; }
.stack-lg > * + * { margin-top: 2rem; }

.divider {
  height: 32px;
}

.arrow::after {
  content: "→";
  display: inline-block;
  margin-left: 0.35rem;
  transition: transform 200ms ease;
}

a:hover .arrow::after { transform: translateX(4px); }

.prose h2 {
  font-family: var(--space-grotesk);
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  margin: 2.5rem 0 1rem;
}

.prose h3 {
  font-family: var(--space-grotesk);
  font-size: 1.25rem;
  margin: 1.75rem 0 0.6rem;
}

.prose p, .prose li { color: var(--on-surface-muted); }

.prose strong { color: var(--on-surface); }

.prose ul, .prose ol {
  padding-left: 1.5rem;
  margin: 0 0 1.25rem;
}

.prose li { margin-bottom: 0.35rem; }

.prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--tertiary);
  background: var(--surface-low);
  border-radius: 0 12px 12px 0;
  color: var(--on-surface-muted);
}

/* Page header (non-home) -------------------------------------------- */

.page-head {
  padding: 8rem 0 3rem;
  background: radial-gradient(ellipse at top, rgba(74, 142, 255, 0.08), transparent 60%);
}

.page-head h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.035em;
  margin: 1rem 0 1rem;
}

/* Breadcrumb -------------------------------------------------------- */

.crumb {
  font-family: var(--inter);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-surface-muted);
}

.crumb a { color: var(--on-surface-muted); }
.crumb a:hover { color: var(--primary); }

/* Code block w/ label ----------------------------------------------- */

.code-block {
  background: var(--surface-lowest);
  border-radius: 16px;
  overflow: hidden;
  margin: 0 0 1.5rem;
}

.code-block__label {
  padding: 0.6rem 1rem;
  font-family: var(--inter);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-surface-muted);
  background: var(--surface-high);
}

.code-block pre { margin: 0; background: transparent; }

/* Anchor scroll offset for fixed nav */
:target {
  scroll-margin-top: 88px;
}