/* base color definitions */
:root {
  --color-accent: 33, 100%, 50%;
  --color-accent-light-2: 26, 99%, 69%;
  --mica-tint-opacity: .8
}

:root {
  --clr-accent: hsl(var(--color-accent));
  --clr-accent-hover: hsla(var(--color-accent-light-2), 90%);

  --clr-text-primary: hsla(0, 0%, 100%, 100%);
  --clr-text-secondary: hsla(0, 0%, 100%, 78.6%);
  --clr-text-tertiary: hsla(0, 0%, 100%, 54.42%);
  --clr-text-disabled: hsla(0, 0%, 100%, 36.28%);

  --clr-accent-subtle: hsla(var(--color-accent-light-2), 20%);

  --clr-mica-border: rgba(0, 0, 0, 0.05);
  --clr-mica-tint: 0, 0%, 13%;

  --clr-card-background-default: hsla(0, 0%, 100%, 3.26%);

  /* default dark mode */
  --clr-bg: #0c0c0c;
  --clr-surface: #141414;
  --clr-surface-2: #1c1c1c;
  --clr-surface-3: #242424;
  --clr-surface-4: #2e2e2e;
  --clr-border: rgba(255, 255, 255, 0.07);
  --clr-border-hover: rgba(255, 255, 255, 0.15);
  --clr-glass-border: rgba(255, 255, 255, 0.05);
  --clr-input-bg: rgba(255, 255, 255, 0.04);
  --clr-input-border: rgba(255, 255, 255, 0.09);
  --clr-sep: rgba(255, 255, 255, 0.06);

  /* status tokens */
  --clr-s-released: #22c55e;
  --clr-s-active: #3b82f6;
  --clr-s-paused: #f59e0b;
  --clr-s-planned: #a78bfa;
  --clr-s-discontinued: #ef4444;

  /* typography */
  --font: 'Bahnschrift', 'DIN Alternate', 'Franklin Gothic Medium', 'Gill Sans', sans-serif;

  /* layout */
  --header-h: 62px;
  --pad-section: 96px;
  --pad-x: 24px;
  --max-w: 1200px;

  /* shape */
  --r-xs: 3px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;

  /* animation durations */
  --t-xs: 80ms;
  --t-sm: 150ms;
  --t-md: 260ms;
  --t-lg: 420ms;
  --t-underline: 290ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* Blur */
  --blur-sm: blur(8px);
  --blur-md: blur(22px);
}

/* light mode */
[data-theme="light"] {

  --clr-text-primary: hsla(0, 0%, 0%, 89.56%);
  --clr-text-secondary: hsla(0, 0%, 0%, 60.63%);
  --clr-text-tertiary: hsla(0, 0%, 0%, 44.58%);
  --clr-text-disabled: hsla(0, 0%, 0%, 36.14%);

  --clr-mica-tint: 0, 0%, 95%;

  --clr-card-background-default: hsla(0, 0%, 100%, 70%);

  --clr-bg: #f0f0f0;
  --clr-surface: #fafafa;
  --clr-surface-2: #f4f4f4;
  --clr-surface-3: #ebebeb;
  --clr-surface-4: #e2e2e2;
  --clr-border: rgba(0, 0, 0, 0.07);
  --clr-border-hover: rgba(0, 0, 0, 0.14);
  --clr-input-bg: rgba(0, 0, 0, 0.03);
  --clr-input-border: rgba(0, 0, 0, 0.1);
  --clr-sep: rgba(0, 0, 0, 0.07);
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  :root {
    --t-xs: 0ms;
    --t-sm: 0ms;
    --t-md: 0ms;
    --t-lg: 0ms;
    --t-underline: 0ms;
  }
}

.mica {
  background-color: hsl(var(--clr-mica-tint), var(--mica-tint-opacity));
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  backdrop-filter: blur(20px) saturate(150%);
}

/* reset & base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--clr-bg);
  color: var(--clr-text-primary);
  font-family: var(--font);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  transition: background var(--t-md), color var(--t-md);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
}

button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea {
  font-family: var(--font);
}

/* typography */
.t-primary {
  color: var(--clr-text-primary);
}

.t-secondary {
  color: var(--clr-text-secondary);
}

.t-eyebrow {
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: lowercase;
  color: var(--clr-accent);
}

.t-eyebrow::before {
  content: '';
  display: inline-block;
  width: 26px;
  height: 1px;
  background: var(--clr-accent);
  margin-right: 10px;
  vertical-align: middle;
}

.t-h1 {
  font-weight: 700;
  font-size: clamp(2.5rem, 5.5vw, 5rem);
  line-height: 1.0;
  letter-spacing: -0.025em;
}

.t-h2 {
  font-weight: 600;
  font-size: clamp(1.75rem, 3vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  text-transform: lowercase;
}

.t-h3 {
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.25;
}

.t-body {
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--clr-text-secondary);
  line-height: 1.65;
}

.t-small {
  font-weight: 300;
  font-size: 0.78rem;
  color: var(--clr-text-tertiary);
}

.t-accent {
  color: var(--clr-accent);
}

/* button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  padding: 9px 20px;
  border-radius: var(--r-sm);
  font-family: var(--font);
  font-weight: 400;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  white-space: nowrap;
  transition:
    background var(--t-sm),
    border-color var(--t-sm),
    box-shadow var(--t-sm),
    color var(--t-sm),
    transform var(--t-xs);
}

.btn:active {
  transform: translateY(0px);
}

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--clr-accent-hover);
}

.btn-secondary {
  background: var(--clr-surface-3);
  color: var(--clr-text-primary);
  border: 1px solid var(--clr-border);
}

.btn-secondary:hover {
  background: var(--clr-surface-4);
  border-color: var(--clr-border-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-text-secondary);
  border: 1px solid var(--clr-border);
}

.btn-ghost:hover {
  color: var(--clr-text-primary);
  border-color: var(--clr-border-hover);
  background: var(--clr-surface-2);
}

.btn-lg {
  padding: 12px 28px;
  font-size: 0.95rem;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.78rem;
}

/* layout */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section {
  padding: var(--pad-section) 0;
}

.sep {
  width: 100%;
  height: 1px;
  background: var(--clr-sep);
}

.section-header {
  margin-bottom: 44px;
}

.section-header .t-eyebrow {
  display: block;
  margin-bottom: 8px;
}

/* scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--t-lg) var(--ease-out), transform var(--t-lg) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-d1 {
  transition-delay: 80ms;
}

.reveal-d2 {
  transition-delay: 160ms;
}

.reveal-d3 {
  transition-delay: 240ms;
}

.reveal-d4 {
  transition-delay: 320ms;
}

/* header */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 1000;
  border-bottom: 1px solid var(--clr-mica-border);
  transition: background var(--t-md), border-color var(--t-md);
}

#header.scrolled {
  border-bottom-color: var(--clr-border);
}

.header-inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  gap: 4px;
}

.logo-mark {
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: 0.05em;
}

/* desktop navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.nav-link {
  position: relative;
  padding: 6px 14px;
  font-weight: 400;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  color: var(--clr-text-secondary);
  border-radius: var(--r-xs);
  transition: color var(--t-sm);
}

/* underline: left-to-right on hover */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 1px;
  left: 14px;
  right: 14px;
  height: 1.5px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-underline) var(--ease-out);
}

.nav-link:hover {
  color: var(--clr-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--clr-text-primary);
}

/* header controls */
.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
}

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-secondary);
  border: 1px solid var(--clr-border);
  background: transparent;
  transition: color var(--t-sm), border-color var(--t-sm), background var(--t-sm);
}

.icon-btn:hover {
  color: var(--clr-text-primary);
  border-color: var(--clr-border-hover);
  background: var(--clr-surface-2);
}

.icon-btn svg {
  pointer-events: none;
}

svg.icon {
  width: 20px;
  height: 20px;
}

/* theme toggle icon swap */
.icon-moon {
  display: block;
}

.icon-sun {
  display: none;
}

[data-theme="light"] .icon-moon {
  display: none;
}

[data-theme="light"] .icon-sun {
  display: block;
}

/* hamburger */
.hamburger {
  display: none;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  border: 1px solid var(--clr-border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  transition: border-color var(--t-sm);
}

.hamburger:hover {
  border-color: var(--clr-border-hover);
}

.h-bar {
  width: 18px;
  height: 1px;
  background: var(--clr-text-secondary);
  border-radius: 2px;
  transition: transform var(--t-md) var(--ease-out), opacity var(--t-md), background var(--t-sm);
}

.hamburger.open .h-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.open .h-bar:nth-child(2) {
  opacity: 0;
}

.hamburger.open .h-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* mobile nav drawer */
.nav-mobile {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  border-bottom: 1px solid var(--clr-border);
  padding: 10px var(--pad-x) 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 998;
  /* Hidden by default */
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--t-md) var(--ease-out), transform var(--t-md) var(--ease-out), visibility 0ms var(--t-md);
}

.nav-mobile.open {
  visibility: visible;
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
  transition: opacity var(--t-md) var(--ease-out), transform var(--t-md) var(--ease-out), visibility 0ms;
}

.nav-mobile-link {
  padding: 10px 12px;
  font-weight: 400;
  font-size: 0.92rem;
  color: var(--clr-text-secondary);
  border-radius: var(--r-sm);
  transition: color var(--t-sm), background var(--t-sm);
}

.nav-mobile-link:hover {
  color: var(--clr-text-primary);
  background: var(--clr-surface-2);
}

/* badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: var(--r-xs);
  font-weight: 400;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  flex-shrink: 0;
}

.badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-released {
  background: rgba(34, 197, 94, 0.1);
  color: var(--clr-s-released);
}

.badge-released::before {
  background: var(--clr-s-released);
}

.badge-active {
  background: rgba(59, 130, 246, 0.1);
  color: var(--clr-s-active);
}

.badge-active::before {
  background: var(--clr-s-active);
}

.badge-paused {
  background: rgba(245, 158, 11, 0.1);
  color: var(--clr-s-paused);
}

.badge-paused::before {
  background: var(--clr-s-paused);
}

.badge-planned {
  background: rgba(167, 139, 250, 0.1);
  color: var(--clr-s-planned);
}

.badge-planned::before {
  background: var(--clr-s-planned);
}

.badge-discontinued {
  background: rgba(239, 68, 68, 0.1);
  color: var(--clr-s-discontinued);
}

.badge-discontinued::before {
  background: var(--clr-s-discontinued);
}

/* light box */
.lightbox-img {
  cursor: pointer;
}

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.lightbox.show {
  display: flex;
}

.lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(12px);
}

.lightbox-content {
  position: relative;
  max-width: 94vw;
  max-height: 94vh;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
}

.lightbox-image-wrapper {
  position: relative;
  overflow: hidden;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0a0a0a;
  cursor: grab;
}

.lightbox-image-wrapper:active {
  cursor: grabbing;
}

#lightbox-image {
  max-width: 100%;
  max-height: 100%;
  transition: transform 0.1s ease-out;
  user-select: none;
  transform-origin: center center;
}

/* Close button */
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-sm);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--t-sm);
}

.lightbox-close:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
}

/* Toolbar */
.lightbox-toolbar {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 20, 20, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  padding: 6px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 10;
}

.zoom-level {
  font-size: 0.82rem;
  color: var(--clr-text-secondary);
  min-width: 52px;
  text-align: center;
}

/* footer */
#footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 44px 0 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: start;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--clr-border);
  margin-bottom: 22px;
}

.footer-brand {
  font-size: 1.4rem;
}

.footer-brand .logo-slogan {
  font-size: 0.58rem;
  margin-top: 3px;
  display: block;
}

.footer-links-col {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.footer-ext-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: var(--r-sm);
  font-weight: 300;
  font-size: 0.75rem;
  color: var(--clr-text-tertiary);
  border: 1px solid transparent;
  transition: color var(--t-sm), border-color var(--t-sm), background var(--t-sm);
}

.footer-ext-link:hover {
  color: var(--clr-text-secondary);
  border-color: var(--clr-border);
  background: var(--clr-surface-2);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-copy {
  font-weight: 300;
  font-size: 0.75rem;
  color: var(--clr-text-tertiary);
}

.footer-legal {
  display: flex;
  gap: 18px;
}

.footer-legal-link {
  font-weight: 300;
  font-size: 0.75rem;
  color: var(--clr-text-tertiary);
  transition: color var(--t-sm);
}

.footer-legal-link:hover {
  color: var(--clr-text-secondary);
}

/* responsive */
@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-links-col {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  :root {
    --pad-section: 64px;
  }

  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

@media (max-width: 500px) {
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}