/*
 * MATIC Studio — OpenAI-inspired design system
 * Clean, editorial, typography-led. Generous whitespace, soft palette.
 * Homepage (home-casper): dark editorial hero inspired by agency reference.
 */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Rubik+Mono+One&display=swap');

:root {
  /* OpenAI-style palette: clean, minimal, human */
  --bg: #fafafa;
  --bg-elevated: #ffffff;
  --bg-dark: #0a0a0a;
  --text: #171717;
  --text-muted: #525252;
  --text-muted-2: #737373;
  --border: #e5e5e5;
  --border-subtle: #f0f0f0;
  --accent: #10a37f;
  --accent-hover: #0d8c6a;
  --accent-soft: rgba(16, 163, 127, 0.12);
  --link: #10a37f;
  --link-hover: #0d8c6a;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --radius-lg: 16px;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Rubik Mono One', ui-monospace, monospace;
  --max-width: 1120px;
  --section-padding: clamp(64px, 9vw, 112px);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  background-image: linear-gradient(180deg, #fafafa 0%, #f7f7f7 48%, #fafafa 100%);
  color: var(--text);
  line-height: 1.6;
  letter-spacing: -0.01em;
  min-height: 100vh;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); margin-bottom: 0.5em; }
h3 { font-size: 1.25rem; }

p {
  color: var(--text-muted);
  max-width: 65ch;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Header — minimal, top-aligned */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 24px;
  background: rgba(250, 250, 250, 0.78);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid rgba(229, 229, 229, 0.65);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  height: 32px;
  width: auto;
  display: block;
}

/* If logo is white, use dark version on light bg */
body:not(.dark) .site-logo,
body:not(.dark) .hero-openai .logo-wrap img {
  filter: brightness(0);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--text);
  color: var(--bg-elevated);
}

.btn-primary:hover {
  background: var(--text-muted);
  color: var(--bg-elevated);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border-subtle);
  border-color: var(--text-muted-2);
}

/* Hero — calm, centered, no gimmicks */
.hero-openai {
  padding: calc(120px + 4rem) 24px clamp(4rem, 10vw, 5.5rem);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.hero-openai::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(100% - 48px, 560px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle) 20%, var(--border-subtle) 80%, transparent);
  pointer-events: none;
}

.hero-openai .logo-wrap {
  margin-bottom: 2rem;
}

.hero-openai .logo-wrap img {
  height: 48px;
  width: auto;
}

.hero-openai h1 {
  margin-bottom: 1rem;
  color: var(--text);
}

.hero-openai .tagline {
  font-size: 1.25rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-openai .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.cta-row--center {
  justify-content: center;
}

.section-actions {
  margin-top: 1.75rem;
  text-align: center;
}

/* Industry chips — compact grid */
.industries-grid {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.industry-chip {
  padding: 1.25rem 1.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.industry-chip:hover {
  border-color: var(--border);
  box-shadow: var(--card-shadow);
}

/* Section block */
main {
  display: flex;
  flex-direction: column;
}

.section {
  padding: var(--section-padding) 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

main > .section + .section {
  border-top: 1px solid rgba(229, 229, 229, 0.55);
}

/* First content section sits closer to hero for a single visual beat */
main > .hero-openai + .section,
main > .hero-casper + .section {
  padding-top: clamp(56px, 8vw, 88px);
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-header h2 {
  margin-bottom: 0.35em;
}

.section-header p {
  font-size: 1.0625rem;
  margin-bottom: 0;
}

/* Cards — OpenAI “Recent news” style */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border);
}

.card a {
  color: inherit;
  display: block;
}

.card a:hover {
  color: var(--link);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--border-subtle);
}

.card-body {
  padding: 1.25rem 1.5rem;
}

.card-meta {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

/* Team cards */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  justify-items: center;
}

.team-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  max-width: 280px;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.team-card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border);
}

.team-card a {
  color: inherit;
}

.team-card a:hover {
  color: var(--link);
}

.team-card .thumb {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: var(--border-subtle);
}

.team-card .info {
  padding: 1.25rem;
  text-align: center;
}

.team-card .name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.team-card .role {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text);
}

.site-footer a:hover {
  color: var(--link);
}

.site-footer .contact {
  margin-top: 0.75rem;
}

.site-footer .legal {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* Dark section variant (optional) */
.section-dark {
  background: var(--bg-dark);
  color: var(--bg-elevated);
}

.section-dark h2,
.section-dark .section-header p {
  color: var(--bg-elevated);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.7);
}

.section-dark .card {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.section-dark .card:hover {
  border-color: rgba(255, 255, 255, 0.18);
}

/* Mobile nav */
.mobile-nav {
  display: none;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--text);
}

/* Workshop / content page: step cards and pills */
.step-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.step-card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border);
}

.step-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.step-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-card h2,
.step-card h3 {
  margin: 0;
  font-size: 1.2rem;
}

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 1rem;
}

.pill {
  font-size: 0.8125rem;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}

.section-dark .step-card {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.section-dark .step-card-icon {
  background: rgba(16, 163, 127, 0.25);
  color: #34d399;
}

.section-dark .pill {
  background: rgba(16, 163, 127, 0.25);
  color: #34d399;
}

/* ——— Homepage: matches Casper Studios (Framer) — DM Sans + Rubik Mono One, #131313 surfaces ——— */
.home-casper {
  --casper-bg: #0a0a0a;
  --casper-surface: #131313;
  --casper-border: rgba(255, 255, 255, 0.07);
  --casper-muted: rgba(255, 255, 255, 0.52);
  --casper-font: 'DM Sans', var(--font-sans);
  font-family: var(--casper-font);
  background: var(--casper-bg);
  background-image: none;
  color: #fafafa;
}

.home-casper .btn {
  font-family: var(--casper-font);
}

.home-casper p {
  color: var(--casper-muted);
}

.home-casper a:not(.btn) {
  color: rgba(255, 255, 255, 0.82);
}

.home-casper a:not(.btn):hover {
  color: #fff;
}

.home-casper .site-header--hero-dark {
  background: rgba(10, 10, 10, 0.65);
  backdrop-filter: blur(20px) saturate(1.1);
  -webkit-backdrop-filter: blur(20px) saturate(1.1);
  border-bottom: 1px solid var(--casper-border);
}

.home-casper .site-header--hero-dark .site-logo {
  filter: brightness(0) invert(1);
  opacity: 0.95;
}

.home-casper .site-header--hero-dark .site-nav a {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 500;
  font-size: 0.9375rem;
}

.home-casper .site-header--hero-dark .site-nav a:hover {
  color: #fff;
}

.home-casper .mobile-menu-btn {
  color: #fafafa;
}

/* Hero — stacked Rubik Mono One, near-black (casperstudios.xyz) */
.hero-casper {
  position: relative;
  min-height: min(88vh, 820px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(96px + 3rem) 24px clamp(5.5rem, 14vw, 8rem);
  text-align: center;
  overflow: hidden;
}

.hero-casper-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 45% at 50% 0%, rgba(59, 130, 246, 0.06), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 60%, rgba(255, 255, 255, 0.04), transparent 50%),
    linear-gradient(180deg, #0c0c0c 0%, #060606 100%);
  pointer-events: none;
}

.hero-casper::after {
  display: none;
}

.hero-casper-inner {
  position: relative;
  z-index: 2;
  max-width: min(920px, 100%);
  margin: 0 auto;
}

.hero-casper .logo-wrap {
  margin-bottom: 2rem;
}

.hero-casper .logo-wrap img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.hero-eyebrow {
  font-family: var(--casper-font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
  margin: 0 0 1.75rem;
}

.hero-display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 5.5vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: #fafafa;
  margin: 0 0 1.5rem;
  text-transform: none;
}

.hero-display .display-line {
  display: block;
}

.hero-display .display-line--accent {
  margin-top: 0.12em;
  color: #34d399;
}

.hero-casper .tagline {
  font-family: var(--casper-font);
  font-size: clamp(1rem, 2vw, 1.125rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.65;
  margin: 0 auto 2.5rem;
  max-width: 36ch;
}

.hero-casper .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.home-casper .hero-casper .btn-primary {
  background: #fafafa;
  color: #0a0a0a;
  font-weight: 600;
}

.home-casper .hero-casper .btn-primary:hover {
  background: #fff;
  color: #0a0a0a;
}

.btn-pill {
  border-radius: 999px;
  padding: 14px 28px;
}

.btn-on-dark {
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--casper-border);
}

.btn-on-dark:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

/* Sections — same dark canvas as Casper cards sit on */
.home-casper .section {
  border-color: transparent;
}

.home-casper main > .section + .section {
  border-top: 1px solid var(--casper-border);
}

.home-casper .section-header h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #fafafa;
  margin-bottom: 0.4em;
}

.home-casper .section-header p {
  font-size: 1.0625rem;
  color: var(--casper-muted);
}

.section-eyebrow {
  font-family: var(--casper-font);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
  margin: 0 0 0.75rem;
  max-width: none;
}

.home-casper .btn-primary {
  background: #fafafa;
  color: #0a0a0a;
  font-weight: 600;
}

.home-casper .btn-primary:hover {
  background: #fff;
  color: #0a0a0a;
}

.home-casper .btn-secondary {
  background: var(--casper-surface);
  color: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--casper-border);
}

.home-casper .btn-secondary:hover {
  background: #1a1a1a;
  border-color: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* Cards / chips / team — Framer-style #131313 + hairline border + 20px radius */
.home-casper .card,
.home-casper .team-card,
.home-casper .industry-chip {
  background: var(--casper-surface);
  border: 1px solid var(--casper-border);
  border-radius: 20px;
  box-shadow: none;
}

.home-casper .card:hover,
.home-casper .team-card:hover,
.home-casper .industry-chip:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.home-casper .card-meta {
  color: rgba(255, 255, 255, 0.45);
}

.home-casper .card-title {
  color: #fafafa;
}

.home-casper .card a:hover .card-title {
  color: #fff;
}

.home-casper .team-card .name {
  color: #fafafa;
}

.home-casper .team-card .role {
  color: var(--casper-muted);
}

.home-casper .industry-chip {
  color: rgba(255, 255, 255, 0.65);
  padding: 1.15rem 1.35rem;
}

.home-casper .section--closing {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
}

.site-footer--dark {
  background: #050505;
  color: rgba(255, 255, 255, 0.42);
  border-top: 1px solid var(--casper-border);
  padding: 56px 24px 48px;
}

.site-footer--dark p {
  color: rgba(255, 255, 255, 0.42);
  max-width: none;
}

.site-footer--dark a {
  color: rgba(255, 255, 255, 0.82);
}

.site-footer--dark a:hover {
  color: #34d399;
}

.home-casper .card a:hover {
  color: inherit;
}

.home-casper .team-grid > a {
  color: inherit;
}

.home-casper .team-grid > a:hover {
  color: inherit;
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-nav {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.28s ease;
    border-bottom: 1px solid transparent;
  }

  .mobile-nav > * {
    min-height: 0;
    overflow: hidden;
  }

  .mobile-nav.is-open {
    grid-template-rows: 1fr;
    border-bottom-color: var(--border-subtle);
  }

  .mobile-nav-inner {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0 24px;
    background: var(--bg-elevated);
  }

  .mobile-nav.is-open .mobile-nav-inner {
    padding-top: 8px;
    padding-bottom: 24px;
  }

  .mobile-nav a {
    padding: 12px 0;
    color: var(--text);
    border-bottom: 1px solid var(--border-subtle);
  }

  .home-casper .mobile-nav-inner {
    background: #131313;
  }

  .home-casper .mobile-nav a {
    color: rgba(255, 255, 255, 0.88);
    border-bottom-color: rgba(255, 255, 255, 0.07);
  }

  .home-casper .mobile-nav.is-open {
    border-bottom-color: rgba(255, 255, 255, 0.07);
  }

  .mobile-nav a:last-child {
    border-bottom: none;
  }

  .hero-casper {
    min-height: unset;
    padding-top: calc(88px + 2.5rem);
    padding-bottom: clamp(5rem, 14vw, 7rem);
  }

  .hero-display {
    font-size: clamp(1.65rem, 8vw, 2.75rem);
  }
}