/* ============================================================
   IslandBytes — Main Stylesheet
   Design system documented in CLAUDE.md
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@100;200;300&display=swap');

/* ------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   ------------------------------------------------------------ */
:root {
  --color-bg: #000000;
  --color-text: #ffffff;
  --color-text-secondary: #bbbab2;
  --color-accent: #3e3d36;
  --color-hover: rgba(255, 255, 255, 0.08);

  --font-family: 'Barlow', sans-serif;

  --font-display: clamp(3rem, 8vw, 9rem);
  --font-heading: clamp(1.5rem, 4vw, 4rem);
  --font-subheading: clamp(1rem, 2vw, 1.75rem);
  --font-body: clamp(0.875rem, 1.2vw, 1rem);
  --font-label: 0.75rem;

  --nav-height: 60px;
  --section-padding: clamp(2rem, 6vw, 6rem);
  --content-max-width: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family);
  font-weight: 300;
  font-size: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

/* ------------------------------------------------------------
   Navigation
   ------------------------------------------------------------ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.nav.scrolled {
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav__brand {
  font-size: var(--font-body);
  font-weight: 200;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: opacity 0.3s ease;
}

.nav__brand:hover {
  opacity: 0.6;
}

.nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav__links a {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

.nav__links a:hover {
  color: var(--color-text);
}

/* ------------------------------------------------------------
   Scroll Container (landing page)
   ------------------------------------------------------------ */
.scroll-container {
  height: 100vh;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

/* ------------------------------------------------------------
   Full-Screen Sections
   ------------------------------------------------------------ */
.section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--nav-height) clamp(1.5rem, 5vw, 4rem) clamp(2rem, 5vw, 4rem);
  scroll-snap-align: start;
}

/* ------------------------------------------------------------
   Section: Hero — Background Image with Ken Burns zoom
   ------------------------------------------------------------ */
.section--hero {
  justify-content: center;
  overflow: hidden; /* clip the zooming image */
}

/* The image sits behind all content and slowly zooms in */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform-origin: center center;
  animation: kenBurns 24s ease-in-out infinite alternate;
  /* Desaturate slightly for a moodier, more cohesive look */
  filter: saturate(0.7) brightness(0.45);
}

@keyframes kenBurns {
  from {
    transform: scale(1) translate(0, 0);
  }
  to {
    transform: scale(1.12) translate(-1%, 1%);
  }
}

/* Dark gradient overlay — keeps text legible over the image */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom,
      rgba(0, 0, 0, 0.35) 0%,
      rgba(0, 0, 0, 0.1) 40%,
      rgba(0, 0, 0, 0.55) 100%
    );
}

/* All hero text content must sit above the background */
.section--hero > *:not(.hero__bg) {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: clamp(1rem, 3vw, 2rem);
}

.hero__wordmark {
  font-size: var(--font-display);
  font-weight: 100;
  letter-spacing: -0.01em;
  line-height: 0.9;
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
}

.hero__tagline {
  font-size: var(--font-subheading);
  font-weight: 200;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: clamp(0.5rem, 1.5vw, 1rem);
}

.hero__sub {
  font-size: var(--font-body);
  font-weight: 300;
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

/* ------------------------------------------------------------
   Scroll Indicator
   ------------------------------------------------------------ */
.scroll-indicator {
  position: absolute;
  bottom: clamp(1.5rem, 4vw, 3rem);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  transition: opacity 0.5s ease;
}

.scroll-indicator.hidden {
  opacity: 0;
  pointer-events: none;
}

.scroll-indicator__line {
  width: 1px;
  height: 40px;
  background: var(--color-accent);
  animation: scrollLine 2s ease-in-out infinite;
}

.scroll-indicator__label {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(0.6); }
}

/* ------------------------------------------------------------
   Shared section background (atmosphere + connect sections)
   Slower, more still than the hero — just a subtle alive quality
   ------------------------------------------------------------ */
.section__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.section__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform-origin: center center;
  animation: kenBurns 32s ease-in-out infinite alternate;
  filter: saturate(0.6) brightness(0.5);
}

/* Overlay for these sections — text must be very readable */
.section__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

/* All content in these sections sits above the background */
.section--atmosphere > *:not(.section__bg),
.section--connect > *:not(.section__bg) {
  position: relative;
  z-index: 1;
}

/* Connect section: sunset image benefits from a warmer overlay tone */
.section--connect .section__bg img {
  filter: saturate(0.5) brightness(0.4);
}

/* ------------------------------------------------------------
   Section: Atmosphere
   ------------------------------------------------------------ */
.section--atmosphere {
  overflow: hidden;
}

.atmosphere__label {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.atmosphere__statement {
  font-size: var(--font-heading);
  font-weight: 100;
  letter-spacing: 0.01em;
  line-height: 1.2;
  max-width: 900px;
}

.atmosphere__statement em {
  font-style: normal;
  color: var(--color-text-secondary);
}

/* ------------------------------------------------------------
   Section: Connect
   ------------------------------------------------------------ */
.section--connect {
  overflow: hidden;
}

.connect__label {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.connect__heading {
  font-size: var(--font-heading);
  font-weight: 100;
  letter-spacing: 0.01em;
  line-height: 1.2;
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
  max-width: 700px;
}

.connect__email {
  display: inline-block;
  font-size: var(--font-subheading);
  font-weight: 200;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 0.25rem;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.connect__email:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}

.connect__meta {
  margin-top: clamp(1rem, 3vw, 2rem);
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

/* ------------------------------------------------------------
   Footer
   ------------------------------------------------------------ */
.footer {
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  scroll-snap-align: start;
}

.footer__copy {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer__links a {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  transition: color 0.3s ease;
}

.footer__links a:hover {
  color: var(--color-text);
}

/* ------------------------------------------------------------
   Reveal Animations
   ------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }

/* Hero fires immediately (no delay for first visible content) */
.section--hero .reveal { transition-delay: 0s !important; }
.section--hero .reveal:nth-child(2) { transition-delay: 0.2s !important; }
.section--hero .reveal:nth-child(3) { transition-delay: 0.4s !important; }
.section--hero .reveal:nth-child(4) { transition-delay: 0.6s !important; }
.section--hero .reveal:nth-child(5) { transition-delay: 0.8s !important; }

/* ------------------------------------------------------------
   About Page Background
   ------------------------------------------------------------ */
.about__bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.about__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.5) brightness(0.25);
}

/* ------------------------------------------------------------
   Inner Pages (support, privacy)
   ------------------------------------------------------------ */
.page-body {
  overflow-y: auto;
}

.inner-page {
  min-height: 100vh;
  padding: calc(var(--nav-height) + clamp(3rem, 8vw, 6rem)) clamp(1.5rem, 5vw, 4rem) clamp(3rem, 8vw, 6rem);
}

.inner-content {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.inner-content h1 {
  font-size: var(--font-heading);
  font-weight: 100;
  letter-spacing: 0.01em;
  line-height: 1.2;
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
}

.inner-content h2 {
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 200;
  letter-spacing: 0.04em;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
  color: var(--color-text-secondary);
}

.inner-content p {
  font-size: var(--font-body);
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
}

.inner-content a {
  color: var(--color-text);
  border-bottom: 1px solid var(--color-accent);
  transition: border-color 0.3s ease;
}

.inner-content a:hover {
  border-color: var(--color-text);
}

.inner-content .eyebrow {
  font-size: var(--font-label);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: clamp(1rem, 3vw, 2rem);
}

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */
@media (max-width: 480px) {
  .nav__links {
    gap: 1.25rem;
  }

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

  .connect__meta {
    flex-direction: column;
    gap: 0.5rem;
  }
}