/* ---------------------------------------------------------------------------
   Beshula pre-announcement site (ACT-058).
   Night-wood canvas: deep evergreen shadow, bark cream, one ember per view.
   Warm photography reads like the single bright tree in a stand. Palette and
   type from documentation/strategy/marketing. No product detail.
--------------------------------------------------------------------------- */

:root {
  /* Birch-woodland palette (assets/palette/beshula-colors.css) */
  --evergreen-950: #1A2520;
  --evergreen-900: #22302A;
  --evergreen-700: #3B5247;
  --evergreen-500: #5C7A6B;
  --evergreen-300: #9DB3A7;
  --evergreen-200: #C2D0C8;
  --ember-500: #C4762F;
  --ember-400: #D28E4F;
  --ember-300: #DFA97A;
  --bark-100: #E7E2D8;
  --bark-50:  #F6F1E7;

  --bg: var(--evergreen-950);
  --surface: var(--evergreen-900);
  --text: var(--bark-50);
  --text-soft: var(--evergreen-300);
  --accent: var(--ember-400);
  --line: rgba(246, 241, 231, 0.10);

  --display: "Spectral", Georgia, "Times New Roman", serif;
  --body: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 1.02rem;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Two soft pools of light, well under 5% coverage. */
  background-image:
    radial-gradient(circle at 15% 8%, rgba(92,122,107,0.13), transparent 42%),
    radial-gradient(circle at 85% 92%, rgba(59,82,71,0.22), transparent 46%);
  background-attachment: fixed;
}

a { color: inherit; }

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--ember-300);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: 66rem;
  margin: 0 auto;
  padding: 0 1.6rem;
}

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 1rem;
}

/* --- Masthead ---------------------------------------------------------- */
.masthead {
  display: flex;
  align-items: center;
  padding-top: 1.8rem;
  padding-bottom: 1.8rem;
}
.lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--bark-50);
}
.lockup-mark { width: 34px; height: 34px; color: var(--bark-50); }
.wordmark {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.85rem;
  letter-spacing: 0.01em;
  line-height: 1;
}

/* --- Hero -------------------------------------------------------------- */
.hero { position: relative; }
.hero-media {
  position: relative;
  width: 100%;
  height: clamp(30rem, 82vh, 52rem);
  overflow: hidden;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  display: block;
}
/* Evergreen wash so the type stays readable and the photo joins the night wood. */
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(26,37,32,0.30) 0%, rgba(26,37,32,0.05) 30%, rgba(26,37,32,0.55) 72%, var(--bg) 100%),
    linear-gradient(90deg, rgba(26,37,32,0.55) 0%, rgba(26,37,32,0.10) 55%, transparent 100%);
}
.hero-body {
  position: absolute;
  left: 50%;
  bottom: clamp(2.4rem, 7vh, 5rem);
  transform: translateX(-50%);
  text-align: left;
}
.hero-body h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.5rem, 7.2vw, 5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 16ch;
  text-shadow: 0 1px 30px rgba(20,28,24,0.45);
}
.hero-sub {
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  color: var(--bark-100);
  max-width: 34ch;
  margin: 1.4rem 0 2rem;
  text-shadow: 0 1px 20px rgba(20,28,24,0.5);
}
.scroll-cue {
  display: inline-block;
  margin-left: 1.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bark-50);
  text-decoration: none;
  opacity: 0.85;
}
.scroll-cue:hover { opacity: 1; }

/* --- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.95rem 1.7rem;
  font-family: var(--body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--evergreen-950);
  background: var(--ember-400);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease;
}
.btn:hover { background: var(--ember-300); }
.btn:active { transform: translateY(1px); }

/* --- The idea ---------------------------------------------------------- */
.idea {
  padding: clamp(4rem, 10vh, 7rem) 1.6rem clamp(2rem, 5vh, 3.5rem);
  max-width: 46rem;
  text-align: center;
}
.idea h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.8rem, 4.6vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 1.6rem;
}
.idea .eyebrow { text-align: center; }
.lead {
  color: var(--bark-100);
  font-size: 1.12rem;
  margin: 0 auto 1.2rem;
  max-width: 42ch;
}

/* --- Principles -------------------------------------------------------- */
.principles {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(2rem, 5vh, 4rem) 1.6rem;
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 8vh, 6rem);
}
.principle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(1.8rem, 5vw, 4rem);
}
.principle:nth-child(even) .principle-media { order: 2; }
.principle-media {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,0.7);
  aspect-ratio: 16 / 10;
}
.principle-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.principle-body h3 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 0 0 0.9rem;
}
.principle-body p {
  color: var(--bark-100);
  max-width: 40ch;
  margin: 0;
}

/* Gentle scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.is-in { opacity: 1; transform: none; }

/* --- Signup ------------------------------------------------------------ */
.signup {
  padding: clamp(4rem, 9vh, 6.5rem) 1.6rem clamp(3rem, 7vh, 5rem);
  text-align: center;
}
.signup-eyebrow { margin-bottom: 1.4rem; }
.signup-inner {
  max-width: 40rem;
  margin: 0 auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: clamp(2.4rem, 5vw, 3.4rem);
}
.signup .eyebrow { text-align: center; }
.signup h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  margin: 0 0 1rem;
  letter-spacing: -0.015em;
}
.form {
  display: flex;
  gap: 0.6rem;
  max-width: 32rem;
  margin: 2rem auto 0;
  flex-wrap: wrap;
  justify-content: center;
}
.form input[type="email"] {
  flex: 1 1 16rem;
  min-width: 0;
  padding: 0.95rem 1.1rem;
  font-family: var(--body);
  font-size: 1rem;
  color: var(--text);
  background: var(--evergreen-950);
  border: 1px solid rgba(246,241,231,0.22);
  border-radius: 999px;
}
.form input::placeholder { color: var(--evergreen-300); }
.form-note {
  margin: 1.4rem auto 0;
  max-width: 36ch;
  color: var(--ember-300);
  font-family: var(--display);
  font-style: italic;
  min-height: 1.2em;
}
.honest {
  margin: 1.4rem auto 0;
  max-width: 40ch;
  font-size: 0.86rem;
  color: var(--text-soft);
  line-height: 1.55;
}

/* --- Footer ------------------------------------------------------------ */
.foot {
  border-top: 1px solid var(--line);
  padding-top: 2.6rem;
  padding-bottom: 3.2rem;
  text-align: center;
  color: var(--text-soft);
  font-size: 0.85rem;
}
.foot-mark {
  width: 30px;
  height: 30px;
  color: var(--evergreen-300);
  margin: 0 auto 0.9rem;
  display: block;
  opacity: 0.85;
}

/* --- Responsive -------------------------------------------------------- */
@media (max-width: 760px) {
  .principle { grid-template-columns: 1fr; gap: 1.4rem; }
  .principle:nth-child(even) .principle-media { order: 0; }
  .hero-body { text-align: left; }
  .btn-hero { display: block; text-align: center; }
  .scroll-cue { margin-left: 0; margin-top: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}