/* ==========================================================================
   Pixl Studio — Stylesheet
   Aesthetic: refined warm-dark editorial, technical precision, fluid responsive layout.
   ========================================================================== */

:root {
  /* Default Theme: Pixl Studio Indigo */
  --bg: #0b0a08;
  --bg-warm: #100d0a;
  --bg-panel: #15120e;
  --bg-panel-2: #1b1812;
  --border: #2a2520;
  --border-bright: #3d3630;
  --border-warm: #4a3f33;

  --text: #f4ecdc;
  --text-dim: #9e968a;
  --text-faint: #6a6458;
  --text-mute: #4a4640;

  --accent-hue: 239;
  --accent: hsl(var(--accent-hue), 84%, 67%);
  --accent-bright: hsl(var(--accent-hue), 89%, 75%);
  --accent-deep: hsl(var(--accent-hue), 80%, 58%);
  --accent-top: hsl(var(--accent-hue), 60%, 90%);
  --accent-bottom: hsl(var(--accent-hue), 80%, 53%);
  --accent-gradient: linear-gradient(180deg, var(--accent-top) 0%, var(--accent-bottom) 100%);
  --accent-glow: hsla(var(--accent-hue), 84%, 67%, 0.18);
  --accent-soft: hsla(var(--accent-hue), 84%, 67%, 0.08);

  --green: #7ec49a;
  --green-soft: rgba(126, 196, 154, 0.1);
  --blue: #7ab0d1;
  --red: #f43f5e;

  --serif: "Fraunces", "Times New Roman", serif;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(5rem, 10vw, 8rem);
  
  --transition-speed: 0.4s;
  --transition-easing: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   PRODUCT ACCENT OVERRIDES
   ========================================================================== */
body[data-theme="snappy"] {
  --accent-hue: 209; /* Electric macOS Blue */
}
body[data-theme="grantlet"] {
  --accent-hue: 38; /* Shield Amber/Gold */
}
body[data-theme="realtime"] {
  --accent-hue: 188; /* Map Teal/Cyan */
}
body[data-theme="project-manager"] {
  --accent-hue: 263; /* Workspace Violet */
}
body[data-theme="focused-brain"] {
  --accent-hue: 343; /* Sunset Rose */
}
body[data-theme="etudera"] {
  --accent-hue: 161; /* Tablature Emerald */
}

/* ==========================================================================
   RESET & FOUNDATIONS
   ========================================================================== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-speed) var(--transition-easing);
}

/* Subtle warm gradient underlay that shifts with theme */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 15% 0%, var(--accent-soft), transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 30%, hsla(var(--accent-hue), 84%, 67%, 0.04), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-warm) 40%, var(--bg) 100%);
  pointer-events: none;
  z-index: -2;
  transition: background var(--transition-speed) var(--transition-easing);
}

/* Film grain */
.grain {
  position: fixed;
  inset: -10%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.95' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.glow {
  position: fixed;
  z-index: -1;
  pointer-events: none;
  filter: blur(120px);
  opacity: 0.55;
  transition: background var(--transition-speed) var(--transition-easing), transform var(--transition-speed) var(--transition-easing);
}
.glow-tl {
  top: -20%; left: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, var(--accent-glow), transparent 65%);
}
.glow-br {
  bottom: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, hsla(var(--accent-hue), 84%, 67%, 0.08), transparent 65%);
}

/* Selection / focus */
::selection { background: var(--accent); color: var(--bg); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 4vw, 3rem);
  padding: 1rem var(--gutter);
  background: rgba(11, 10, 8, 0.75);
  backdrop-filter: saturate(140%) blur(18px);
  -webkit-backdrop-filter: saturate(140%) blur(18px);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition-speed) ease;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.3rem;
  letter-spacing: -0.015em;
}
.logo-mark {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex: none;
  transition: color var(--transition-speed) var(--transition-easing);
}
.logo-text { letter-spacing: -0.02em; }
.logo-studio {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  margin-left: 0.15rem;
  transform: translateY(-1px);
}

.nav-links {
  display: flex;
  gap: 2.25rem;
  margin-left: auto;
  margin-right: auto;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: -0.005em;
  font-weight: 500;
  transition: color 0.18s ease;
}
.nav-links a:hover { color: var(--text); }

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav { gap: 1rem; justify-content: space-between; }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  --btn-pad-y: 0.7rem;
  --btn-pad-x: 1.25rem;
  --btn-fs: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  font-family: var(--sans);
  font-size: var(--btn-fs);
  font-weight: 500;
  letter-spacing: -0.005em;
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: all 0.22s var(--transition-easing);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
}
.btn-sm { --btn-pad-y: 0.5rem; --btn-pad-x: 0.9rem; --btn-fs: 0.86rem; }
.btn-lg { --btn-pad-y: 0.95rem; --btn-pad-x: 1.5rem; --btn-fs: 1rem; }
.btn-xl { --btn-pad-y: 1.15rem; --btn-pad-x: 1.85rem; --btn-fs: 1.08rem; }
.btn-block { display: flex; justify-content: center; width: 100%; }

.btn-primary {
  background: var(--accent-gradient);
  color: #15120e;
  border-color: var(--accent-bottom);
  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.1);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.3) inset,
    0 0 0 1px hsla(var(--accent-hue), 84%, 67%, 0.35),
    0 10px 30px -8px hsla(var(--accent-hue), 84%, 67%, 0.45),
    0 2px 6px rgba(0, 0, 0, 0.2);
  font-weight: 600;
}
.btn-primary:hover {
  transform: translateY(-1.5px);
  filter: brightness(1.06);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 0 0 1px hsla(var(--accent-hue), 84%, 67%, 0.5),
    0 14px 40px -8px hsla(var(--accent-hue), 84%, 67%, 0.6),
    0 2px 6px rgba(0, 0, 0, 0.25);
}
.btn-primary .btn-arrow { transition: transform 0.22s var(--transition-easing); }
.btn-primary:hover .btn-arrow { transform: translateX(3px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-bright);
}
.btn-ghost:hover {
  background: var(--bg-panel);
  border-color: var(--border-warm);
  transform: translateY(-0.5px);
}
.btn-arrow { width: 14px; height: 14px; stroke-width: 1.8px; }

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5.5rem) var(--gutter) clamp(3rem, 6vw, 5.5rem);
  position: relative;
  text-align: center;
}

.hero-copy {
  max-width: 48rem;
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin: 0 0 1.75rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: rgba(21, 18, 14, 0.4);
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  animation: pulse-glow 2.5s ease-in-out infinite;
  transition: background var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.eyebrow-sep { color: var(--text-mute); }

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent-soft); }
  50% { box-shadow: 0 0 0 6px hsla(var(--accent-hue), 84%, 67%, 0.22); }
}

.display {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.8rem, 7vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  color: var(--text);
  font-variation-settings: "opsz" 144, "SOFT" 30, "WONK" 0;
}
.display em {
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-feature-settings: "ss01";
  transition: filter 0.3s ease;
}

.lede {
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  line-height: 1.55;
  color: var(--text-dim);
  margin: 0 0 2.25rem;
  letter-spacing: -0.005em;
}

.accent-text {
  color: var(--text);
  font-style: italic;
  font-family: var(--serif);
  font-weight: 400;
}

.cta-row {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}
.cta-sub {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  margin: 0;
  letter-spacing: 0.01em;
}



/* ==========================================================================
   PRODUCTS DEEP DIVE SECTION
   ========================================================================== */
.products-section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--section-y) var(--gutter);
  border-top: 1px solid var(--border);
}

.section-head {
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
  text-align: left;
}
.section-kicker {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition-speed) ease;
}
.section-kicker::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  transition: background var(--transition-speed) ease;
}
.section-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--text);
}
.section-title.small { font-size: clamp(1.8rem, 4vw, 2.75rem); }

.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
}

.product-item {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border);
}
.product-item:last-child { border-bottom: 0; padding-bottom: 0; }
.product-item.product-item-flip {
  grid-template-columns: 0.9fr 1.1fr;
}

.product-copy {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.product-num {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}
.product-item-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0;
}
.product-item-title a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}
.product-item-title a:hover {
  color: var(--accent);
}
.product-description {
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin: 0;
}
.product-tech-stack {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.tech-badge {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.product-graphic {
  position: relative;
  margin: 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  aspect-ratio: 16/10;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.product-graphic::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 -60px 80px rgba(0, 0, 0, 0.22);
}

.product-screenshot {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#detail-project-manager .product-screenshot {
  object-fit: contain;
  background: #202020;
}

@media (max-width: 800px) {
  .product-item {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .product-item.product-item-flip {
    grid-template-columns: 1fr;
  }
  .product-item.product-item-flip .product-copy {
    order: 1;
  }
  .product-item.product-item-flip .product-graphic {
    order: 2;
  }
}

/* ==========================================================================
   STUDIO PHILOSOPHY
   ========================================================================== */
.philosophy-section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--section-y) var(--gutter);
  border-top: 1px solid var(--border);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-items: start;
  gap: 1.5rem;
}

.philosophy-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: all 0.25s var(--transition-easing);
}
.philosophy-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
  background: var(--bg-panel-2);
}

.philosophy-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 0.05em;
  transition: color var(--transition-speed) ease;
}

.philosophy-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--text);
}

.philosophy-body {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin: 0;
}

/* ==========================================================================
   CAPABILITIES / TECH MATRIX
   ========================================================================== */
.capabilities-section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--section-y) var(--gutter);
  border-top: 1px solid var(--border);
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.matrix-desc {
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin: 0;
}

.capabilities-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem 2rem;
}

.cap-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.cap-title {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin: 0;
}
.cap-techs {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.01em;
}

@media (max-width: 760px) {
  .matrix-grid { grid-template-columns: 1fr; gap: 2rem; }
  .capabilities-list { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CONTACT / WORK WITH US
   ========================================================================== */
.contact-section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--section-y) var(--gutter) clamp(6rem, 12vw, 10rem);
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact-card {
  max-width: 680px;
  margin: 0 auto;
  background: linear-gradient(180deg, var(--bg-panel) 0%, rgba(21, 18, 14, 0.2) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(2.5rem, 6vw, 4rem) clamp(1.5rem, 4vw, 3rem);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent-gradient);
  opacity: 0.8;
  transition: background var(--transition-speed) ease;
}

.contact-head {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  color: white;
}

.contact-body {
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin: 0 auto 2.5rem;
  max-width: 32rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-btn {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.contact-btn:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-1px);
}
.contact-btn-icon {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border);
  background: #090807;
  padding: 4rem var(--gutter) 5rem;
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem clamp(2rem, 4vw, 4rem);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
}

.footer-tag {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin: 0;
  max-width: 18rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-col-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  margin: 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s ease;
  width: fit-content;
}
.footer-links a:hover { color: var(--text); }

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 2rem;
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-legal {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  margin: 0;
}

.footer-credit {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin: 0;
}

@media (max-width: 760px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 1rem; }
}