/* ============================================================
   Wingu Digital — Nocturnal Atelier
   Palette: void / ink / bone · ice blue accents (from wingu-logo.png)
   Type: Conthrax (display) · Titillium Web (logo) · Source Sans 3 (body / UI)
   Fonts loaded via fonts/fonts.css (self-hosted)
   ============================================================ */

:root {
  /* Surfaces — cool nocturnal (slight blue cast to match ice logo) */
  --void: #070809;
  --ink: #0C0E12;
  --elevated: #14181E;
  --line: #2A3038;

  /* Text — cool neutrals (logo ice-white, not warm parchment) */
  --mute: #8A929C;
  --bone: #E4E9F0;
  --white: #F0F4F8;

  /* Accent — sparse; sampled from wingu-logo.png ice gradient */
  --accent: #B8D8F0;
  --accent-deep: #5A8FA8;
  --accent-soft: #152028;

  /* Type */
  --font-display: "Conthrax", "Helvetica Neue", sans-serif;
  --font-logo: "Titillium Web", "Helvetica Neue", sans-serif;
  --font-body: "Source Sans 3", "Helvetica Neue", sans-serif;
  --font-ui: "Source Sans 3", "Helvetica Neue", sans-serif;

  /* Scale */
  --text-xs: clamp(0.7rem, 0.65rem + 0.2vw, 0.8rem);
  --text-sm: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --text-base: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
  --text-lg: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --text-xl: clamp(1.65rem, 1.3rem + 1.4vw, 2.5rem);
  --text-brand: clamp(2.35rem, 1.6rem + 3.4vw, 4.5rem);

  /* Space */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 9rem;
  --measure: 38rem;
  --content: min(1120px, calc(100% - 3rem));

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 180ms;
  --dur-med: 420ms;
  --dur-slow: 900ms;

  /* Focus */
  --focus-ring: 0 0 0 2px var(--void), 0 0 0 4px var(--accent);
}

/* ---------- Reset & base ---------- */

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

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

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--bone);
  background-color: var(--void);
  background-image:
    radial-gradient(ellipse 100% 70% at 0% 0%, color-mix(in oklch, var(--elevated) 80%, transparent), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 30%, color-mix(in oklch, var(--ink) 90%, transparent), transparent 50%),
    linear-gradient(180deg, var(--void) 0%, var(--ink) 45%, var(--void) 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-2) var(--space-3);
  background: var(--accent);
  color: var(--void);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.skip-link:focus {
  top: var(--space-3);
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) clamp(1.25rem, 4vw, 3rem);
  transition: background var(--dur-med) var(--ease-out),
    backdrop-filter var(--dur-med) var(--ease-out);
}

.site-header.is-scrolled {
  background: color-mix(in oklch, var(--void) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in oklch, var(--line) 55%, transparent);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.nav-wordmark {
  font-family: var(--font-logo);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--bone);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 2.5vw, 2.25rem);
}

.site-nav a {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  transition: color var(--dur-fast) var(--ease-out);
}

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

.nav-cta {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent) !important;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav-cta:hover {
  color: color-mix(in oklch, var(--accent) 80%, var(--white)) !important;
}

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding:
    calc(5.5rem + env(safe-area-inset-top, 0px))
    clamp(1.25rem, 4vw, 3rem)
    clamp(2.5rem, 6vh, 4.5rem);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  transform: scale(1.06);
  animation: hero-drift 28s var(--ease-in-out) infinite alternate;
  will-change: transform;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      180deg,
      color-mix(in oklch, var(--void) 55%, transparent) 0%,
      color-mix(in oklch, var(--void) 30%, transparent) 32%,
      color-mix(in oklch, var(--ink) 75%, transparent) 68%,
      var(--void) 100%
    ),
    linear-gradient(
      90deg,
      color-mix(in oklch, var(--void) 60%, transparent) 0%,
      transparent 58%
    );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(1rem, 2.5vh, 1.5rem);
  margin-bottom: clamp(1.75rem, 4vh, 2.75rem);
}

/* Animated pixel-reveal logo — pieces fade in/out from transparent */
.logo-stage {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.logo-stage--hero {
  width: clamp(7.5rem, 18vw, 12rem);
  height: clamp(7.5rem, 18vw, 12rem);
}

.logo-stage--nav {
  height: 4.5rem;
  width: calc(4.5rem * 846 / 234);
  aspect-ratio: 846 / 234;
  flex-shrink: 0;
}

/* Static fallback (reduced motion) */
.logo-underlay {
  position: absolute;
  inset: 0;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0;
  pointer-events: none;
}

.logo-stage.is-static .logo-underlay {
  opacity: 1;
}

.pixel-background {
  position: absolute;
  inset: 0;
  display: grid;
  pointer-events: none;
  z-index: 1;
}

.pixel {
  background-color: transparent;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.pixel.reveal {
  opacity: 1;
}

.logo-stage.is-static .pixel-background {
  display: none;
}

/* Hero mark: lift dark PNG to white */
.logo-stage--hero .logo-underlay,
.logo-stage--hero .pixel-background {
  filter: brightness(1000);
  mix-blend-mode: screen;
}

/* Nav wordmark: knock out black field, keep logo colors */
.logo-stage--nav .logo-underlay,
.logo-stage--nav .pixel-background {
  mix-blend-mode: screen;
}

.brand-name {
  font-family: var(--font-logo);
  font-size: var(--text-brand);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 1.2rem + 7vw, 6.5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: var(--space-4);
  max-width: 12ch;
  text-wrap: balance;
}

.hero-support {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1.65;
  color: var(--mute);
  max-width: 34ch;
  margin-bottom: var(--space-5);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-scroll {
  position: absolute;
  right: clamp(1.25rem, 4vw, 3rem);
  bottom: clamp(2rem, 5vh, 3.5rem);
  z-index: 1;
  width: 1px;
  height: 3.5rem;
  background: color-mix(in oklch, var(--line) 70%, transparent);
  overflow: hidden;
}

.hero-scroll span {
  display: block;
  width: 100%;
  height: 40%;
  background: var(--accent);
  animation: scroll-pulse 2.4s var(--ease-in-out) infinite;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.btn-primary {
  background: var(--accent);
  color: var(--void);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: color-mix(in oklch, var(--accent) 82%, var(--white));
  border-color: color-mix(in oklch, var(--accent) 82%, var(--white));
  transform: translateY(-1px);
}

.btn-primary:active {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  transform: translateY(0);
}

/* ---------- Contact modal ---------- */

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: var(--space-4);
}

.contact-modal[hidden] {
  display: none;
}

.contact-modal-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in oklch, var(--void) 72%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 0;
  cursor: pointer;
}

.contact-modal-panel {
  position: relative;
  z-index: 1;
  width: min(32rem, 100%);
  overflow: hidden;
  padding:
    clamp(1.5rem, 4vw, 2.25rem)
    clamp(1.5rem, 4vw, 2.25rem)
    clamp(2rem, 5vw, 2.75rem);
  background: var(--elevated);
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: 0 24px 64px color-mix(in oklch, var(--void) 65%, transparent);
  animation: modal-in 280ms var(--ease-out);
}

.contact-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.contact-modal-brand {
  min-width: 0;
  flex: 1;
}

.contact-modal-logo {
  display: block;
  width: auto;
  height: clamp(1.35rem, 1.15rem + 0.6vw, 1.65rem);
  aspect-ratio: 846 / 234;
  object-fit: contain;
  margin-bottom: var(--space-3);
  mix-blend-mode: screen;
}

.contact-modal-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1.15;
}

.contact-modal-close {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--mute);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.contact-modal-close:hover {
  color: var(--bone);
  border-color: var(--mute);
}

.contact-form {
  display: grid;
  gap: var(--space-4);
}

.contact-field {
  display: grid;
  gap: 0.45rem;
}

.contact-field label {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}

.contact-field input,
.contact-field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--bone);
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 2px;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.contact-field input:focus,
.contact-field textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.contact-field input.is-invalid,
.contact-field textarea.is-invalid {
  border-color: #c45c5c;
}

.contact-field textarea {
  max-height: 7rem;
  resize: none;
}

.contact-form-note {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--mute);
  line-height: 1.5;
}

.contact-form-note a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.contact-form-actions {
  display: flex;
  justify-content: flex-start;
  padding-bottom: var(--space-2);
}

body.modal-open {
  overflow: hidden;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(0.75rem) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-modal-panel {
    animation: none;
  }
}

/* ---------- Sections shared ---------- */

.section-inner {
  width: var(--content);
  margin-inline: auto;
}

.section-header {
  margin-bottom: var(--space-6);
  max-width: 28rem;
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--white);
  text-wrap: balance;
}

/* ---------- Services ---------- */

.services {
  position: relative;
  padding: var(--space-8) 0 var(--space-7);
  background: linear-gradient(180deg, var(--void) 0%, var(--ink) 45%, var(--void) 100%);
}

.services::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
}

.services-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.service {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
  padding: clamp(2rem, 4vw, 3rem) 0;
  border-bottom: 1px solid var(--line);
}

.service-index {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  line-height: 1;
  padding-top: 0.35em;
}

.service-body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.2rem + 0.7vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: var(--space-2);
}

.service-body p {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--mute);
  max-width: var(--measure);
  line-height: 1.7;
}

/* ---------- Approach ---------- */

.approach {
  padding: var(--space-7) 0;
  background: var(--elevated);
  border-block: 1px solid var(--line);
}

.approach-inner {
  max-width: 40rem;
}

.approach-copy {
  font-size: clamp(1.15rem, 1.05rem + 0.55vw, 1.45rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--bone);
  text-wrap: pretty;
}

/* ---------- Closing ---------- */

.closing {
  padding: var(--space-7) 0 var(--space-8);
  background: var(--void);
}

.closing-inner {
  text-align: center;
  max-width: 32rem;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.closing-inner h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--white);
}

.closing-inner p {
  font-size: var(--text-sm);
  color: var(--mute);
  max-width: 30ch;
  line-height: 1.7;
}

.closing-inner .btn {
  margin-top: var(--space-2);
}

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

.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-5) 0;
  background: var(--void);
}

.footer-inner {
  width: var(--content);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-logo);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--mute);
}

.footer-wordmark {
  display: inline-flex;
  align-items: baseline;
}

.footer-wordmark-strong {
  font-weight: 700;
  color: var(--bone);
}

.footer-wordmark-light {
  font-weight: 300;
  color: var(--mute);
}

.footer-brand img {
  width: 1.35rem;
  height: 1.35rem;
  object-fit: contain;
}

.footer-copy {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: color-mix(in oklch, var(--mute) 65%, var(--void));
}

/* ---------- Reveal motion ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

[data-reveal][data-delay="1"] { transition-delay: 100ms; }
[data-reveal][data-delay="2"] { transition-delay: 200ms; }
[data-reveal][data-delay="3"] { transition-delay: 300ms; }
[data-reveal][data-delay="4"] { transition-delay: 450ms; }

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero.is-ready [data-reveal] {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Keyframes ---------- */

@keyframes hero-drift {
  from { transform: scale(1.06) translate3d(0, 0, 0); }
  to   { transform: scale(1.12) translate3d(-1.5%, -1%, 0); }
}

@keyframes scroll-pulse {
  0%   { transform: translateY(-100%); }
  40%  { transform: translateY(160%); }
  100% { transform: translateY(160%); }
}

/* ---------- Reduced motion ---------- */

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

  .hero-image {
    animation: none;
    transform: scale(1.04);
  }

  .hero-scroll span {
    animation: none;
    transform: translateY(60%);
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .pixel {
    opacity: 0;
    transition: none;
  }

  .logo-stage.is-static .logo-underlay {
    opacity: 1;
  }

  .btn-primary:hover {
    transform: none;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .site-header {
    padding-block: var(--space-3);
  }

  .site-nav {
    gap: 0.9rem;
  }

  .hero-scroll {
    display: none;
  }

  .nav-wordmark {
    font-size: 0.85rem;
  }

  .logo-stage--nav {
    height: 3rem;
    width: calc(3rem * 846 / 234);
  }

  .contact-modal {
    padding: var(--space-3);
  }

  .contact-modal-panel {
    width: 100%;
    padding-bottom: 2rem;
  }

  .contact-modal-logo {
    height: 1.25rem;
  }

  .service {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 900px) {
  .hero-content {
    max-width: 50rem;
  }

  .hero-support {
    max-width: 38ch;
  }

  .service {
    grid-template-columns: 4rem 1fr;
  }

  .approach-inner {
    max-width: 44rem;
  }
}