@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=Syne:wght@600;700;800&display=swap");

:root {
  --accent: #0d7377;
  --accent-soft: #14919b;
  --ink: #14202b;
  --muted: #5a6b7a;
  --paper: #eef2f5;
  --paper-deep: #d9e2ea;
  --surface: #ffffff;
  --glass: rgb(255 255 255 / 65%);
  --glass-strong: rgb(255 255 255 / 55%);
  --atmosphere-mid: #f7fafc;
  --atmosphere-end: #e7eef3;
  --shadow: 0 18px 40px rgb(20 32 43 / 10%);
  --radius: 18px;
  --font-display: "Syne", sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --btn-primary-fg: #ffffff;
  --mix-white: #ffffff;
}

html[data-theme="dark"] {
  --accent: #3ec6c9;
  --accent-soft: #2a9d9f;
  --ink: #e8eef4;
  --muted: #9aafc0;
  --paper: #0e151c;
  --paper-deep: #1a2530;
  --surface: #16212b;
  --glass: rgb(22 33 43 / 72%);
  --glass-strong: rgb(22 33 43 / 65%);
  --atmosphere-mid: #101820;
  --atmosphere-end: #0b1117;
  --shadow: 0 18px 40px rgb(0 0 0 / 35%);
  --btn-primary-fg: #0e151c;
  --mix-white: #1a2530;
}

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

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
  cursor: pointer;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0;
}

p {
  margin: 0;
  line-height: 1.65;
  color: var(--muted);
}

.atmosphere {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 500px at 12% -10%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%),
    radial-gradient(700px 420px at 90% 8%, color-mix(in srgb, var(--paper-deep) 80%, var(--mix-white)), transparent 55%),
    linear-gradient(180deg, var(--atmosphere-mid) 0%, var(--paper) 45%, var(--atmosphere-end) 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: radial-gradient(rgb(20 32 43 / 8%) 0.7px, transparent 0.7px);
  background-size: 3px 3px;
  mask-image: linear-gradient(180deg, black, transparent 85%);
}

.prerelease-banner {
  padding: 0.65rem 1.25rem;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff7e8;
  background: linear-gradient(90deg, #8a4b12, #b45309 45%, #0d7377);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1.25rem, 4vw, 3rem);
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  border-bottom: 1px solid rgb(20 32 43 / 6%);
  animation: fade-down 0.5s var(--ease) both;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent);
}

.site-nav {
  display: flex;
  gap: 0.35rem;
}

.nav-link {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  color: var(--muted);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

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

.theme-toggle {
  border: 1px solid rgb(20 32 43 / 10%);
  background: var(--glass-strong);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

html[data-theme="dark"] .theme-toggle {
  border-color: rgb(232 238 244 / 12%);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  background: var(--glass);
}

.nav-link:hover,
.nav-link.active {
  color: var(--ink);
  background: var(--glass);
}

.shell-main {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgb(20 32 43 / 8%);
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.hero {
  /* Full-bleed: break out of .shell-main width */
  position: relative;
  width: 100vw;
  left: 50%;
  margin-left: -50vw;
  min-height: calc(100vh - 6rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2.5rem, 8vh, 5rem) max(1.25rem, calc((100vw - 1120px) / 2)) 3rem;
  overflow: hidden;
  box-sizing: border-box;
}

.hero-spotlight {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(
    min(70vw, 720px) circle at var(--spot-x, 50%) var(--spot-y, 40%),
    color-mix(in srgb, var(--accent) 28%, transparent),
    transparent 58%
  );
  transition: background 0.15s linear;
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.32;
  background:
    linear-gradient(rgb(20 32 43 / 8%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(20 32 43 / 8%) 1px, transparent 1px);
  background-size: 48px 48px;
  /* Fade only toward the bottom so sides stay full-bleed */
  mask-image: linear-gradient(180deg, black 0%, black 55%, transparent 100%);
}

html[data-theme="dark"] .hero-grid {
  background:
    linear-gradient(rgb(232 238 244 / 7%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(232 238 244 / 7%) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-kicker {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  animation: fade-up 0.55s var(--ease) both;
}

.hero-brand {
  font-size: clamp(3.4rem, 10vw, 6.8rem);
  max-width: 12ch;
  margin-bottom: 1.25rem;
  animation: fade-up 0.7s var(--ease) 0.08s both;
}

.hero-tagline {
  max-width: 36rem;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  margin-bottom: 2rem;
  animation: fade-up 0.6s var(--ease) 0.16s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: fade-up 0.6s var(--ease) 0.24s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

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

.btn-primary {
  background: var(--ink);
  color: var(--btn-primary-fg);
}

.btn-ghost {
  background: var(--glass-strong);
  border-color: rgb(20 32 43 / 10%);
}

html[data-theme="dark"] .btn-ghost {
  border-color: rgb(232 238 244 / 12%);
}

.section {
  padding: 2.5rem 0 1rem;
}

.section-head,
.page-intro {
  margin-bottom: 1.75rem;
  max-width: 40rem;
}

.page {
  padding-top: 2.5rem;
}

.page-intro h1 {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  margin-bottom: 0.75rem;
}

.project-grid,
.post-list {
  display: grid;
  gap: 1.1rem;
}

.project-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.project-card,
.post-card,
.about-panel,
.detail-hero {
  display: block;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid rgb(20 32 43 / 8%);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.project-card:hover,
.post-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 44px rgb(20 32 43 / 14%);
}

.project-card-band,
.detail-band {
  height: 8px;
  background: linear-gradient(
    90deg,
    var(--card-accent, var(--accent)),
    color-mix(in srgb, var(--card-accent, var(--accent)) 40%, var(--mix-white))
  );
}

.project-card-body,
.post-card,
.about-panel,
.detail-body {
  padding: 1.25rem 1.3rem 1.4rem;
}

.project-card h3,
.post-card h2 {
  margin: 0.35rem 0 0.55rem;
  font-size: 1.35rem;
}

.project-card-meta,
.post-card time,
.article-header time {
  color: var(--muted);
  font-size: 0.9rem;
}

.pill {
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, var(--surface));
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.tag-row li {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--paper-deep);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 500;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.filter-chip {
  border: 0;
  background: var(--glass-strong);
  color: var(--muted);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.filter-chip.active {
  background: var(--ink);
  color: var(--btn-primary-fg);
}

.about-panel {
  display: grid;
  gap: 1rem;
  justify-items: start;
  padding: 1.8rem;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent) 14%, var(--surface)),
      var(--surface) 45%
    ),
    var(--surface);
}

code {
  font-size: 0.92em;
  padding: 0.1em 0.35em;
  border-radius: 6px;
  background: var(--paper-deep);
}

.version-card {
  display: grid;
  gap: 0.85rem;
  padding: 1.4rem 1.5rem;
  margin-bottom: 1rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid rgb(20 32 43 / 8%);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

html[data-theme="dark"] .version-card {
  border-color: rgb(232 238 244 / 10%);
}

.version-card-latest {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.version-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.version-notes {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.version-notes li {
  margin-bottom: 0.35rem;
}

.about-prose {
  display: grid;
  gap: 1.25rem;
  max-width: 46rem;
}

.about-prose p {
  font-size: 1.05rem;
}

.about-wing {
  display: grid;
  gap: 0.85rem;
  padding-top: 0.5rem;
}

.about-wing h2 {
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  margin-top: 0.75rem;
}

.contact-card {
  display: grid;
  gap: 1rem;
  max-width: 36rem;
  padding: 1.6rem 1.7rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid rgb(20 32 43 / 8%);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

html[data-theme="dark"] .contact-card {
  border-color: rgb(232 238 244 / 10%);
}

.contact-email {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--accent);
  word-break: break-word;
}

.contact-email:hover {
  color: var(--ink);
}

.header-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.detail-hero {
  margin: 1rem 0 1.5rem;
  padding: 1.5rem;
  position: relative;
}

.detail-hero .detail-band {
  position: absolute;
  inset: 0 0 auto;
}

.detail-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: 0.4rem 0 0.8rem;
}

.text-link {
  color: var(--accent);
  font-weight: 600;
}

.article-page {
  max-width: 720px;
}

.article-header {
  margin: 1rem 0 1.75rem;
}

.article-header h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  margin: 0.4rem 0 0.8rem;
}

.article-body {
  color: color-mix(in srgb, var(--ink) 88%, var(--muted));
  font-size: 1.05rem;
  line-height: 1.75;
}

.article-body p,
.article-body ul {
  margin: 0 0 1.1rem;
}

.article-body strong {
  color: var(--ink);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.stagger > * {
  opacity: 0;
  transform: translateY(18px);
  animation: fade-up 0.5s var(--ease) both;
}

.stagger.is-visible > *:nth-child(1) { animation-delay: 0.02s; }
.stagger.is-visible > *:nth-child(2) { animation-delay: 0.08s; }
.stagger.is-visible > *:nth-child(3) { animation-delay: 0.14s; }
.stagger.is-visible > *:nth-child(4) { animation-delay: 0.2s; }
.stagger.is-visible > *:nth-child(5) { animation-delay: 0.26s; }
.stagger.is-visible > *:nth-child(6) { animation-delay: 0.32s; }

.stagger:not(.is-visible) > * {
  animation: none;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fade-down {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .shell-main,
  .site-footer {
    width: min(1120px, calc(100% - 1.5rem));
  }

  .hero-brand {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal,
  .stagger > * {
    opacity: 1 !important;
    transform: none !important;
  }
}