/* =========================================================
   I Spark Change — Movement placeholder
   Warm, community-driven aesthetic. Cream + deep teal + spark amber.
   ========================================================= */

:root {
  --paper: #FBF7F0;
  --paper-2: #F3EDE1;
  --ink: #14312F;
  --teal: #1E5A56;
  --teal-deep: #144442;
  --spark: #E8A93C;
  --spark-deep: #C48A20;
  --text: #1F2937;
  --text-mute: #5A6E6C;
  --line: rgba(20, 49, 47, 0.10);

  --font-display: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --container: 1120px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-pad: clamp(4rem, 8vw, 7rem);
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--text);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--spark); color: var(--ink); }

/* Typography */
.eyebrow {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--spark-deep);
}
.eyebrow.on-dark { color: var(--spark); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.05;
  color: var(--ink);
}

.h-display {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.02;
}
.h-1 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 500; }
.h-2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 500; }

.lead {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.6;
  color: var(--text-mute);
  max-width: 58ch;
}

.italic-serif { font-family: var(--font-display); font-style: italic; font-weight: 400; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: var(--section-pad) 0; }
.section--dark { background: var(--teal); color: var(--paper); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--paper); }
.section--dark .lead { color: rgba(251, 247, 240, 0.82); }
.section--paper-2 { background: var(--paper-2); }

/* Nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(251, 247, 240, 0.94);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--ink);
  display: inline-block;
}
.nav__logo .spark { color: var(--spark-deep); font-style: italic; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav__links a {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--spark-deep); }
.nav__cta {
  background: var(--spark);
  color: var(--ink) !important;
  padding: 0.6rem 1.3rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s;
}
.nav__cta:hover { background: var(--spark-deep) !important; color: var(--paper) !important; }

.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav__toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--ink); margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

@media (max-width: 800px) {
  .nav__toggle { display: block; z-index: 101; }
  .nav__links {
    display: none;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--paper);
    border-top: 1px solid var(--line);
    padding: 1.5rem var(--gutter) 2rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav__inner.is-open .nav__links { display: flex; }
  .nav__links li { padding: 0.9rem 0; border-bottom: 1px solid var(--line); width: 100%; }
  .nav__links li:last-child { border-bottom: none; padding-top: 1.4rem; }
  .nav__links a { color: var(--ink); font-size: 1.05rem; }
  .nav__links .nav__cta { display: inline-block; text-align: center; padding: 0.9rem 1.4rem; }
  .nav__inner.is-open .nav__toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav__inner.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav__inner.is-open .nav__toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}

/* Hero */
.hero {
  padding: calc(72px + 5rem) 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero__inner { max-width: 780px; }
.hero__spark {
  display: inline-block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--spark-deep);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}
.hero h1 { margin-bottom: 1.5rem; }
.hero h1 em {
  font-style: italic;
  color: var(--spark-deep);
  font-weight: 400;
}
.hero__sub {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--text-mute);
  max-width: 56ch;
  line-height: 1.55;
  margin-bottom: 2.5rem;
}
.hero__ctas { display: flex; gap: 0.85rem; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.7rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  background: var(--spark);
  color: var(--ink);
}
.btn:hover { background: var(--spark-deep); color: var(--paper); transform: translateY(-1px); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--ghost-light {
  background: transparent;
  color: var(--paper);
  border: 1px solid rgba(251, 247, 240, 0.4);
}
.btn--ghost-light:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

/* Podcast section */
.podcast {
  background: var(--teal);
  color: var(--paper);
  padding: var(--section-pad) 0;
  position: relative;
}
.podcast__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.podcast h2 { font-size: clamp(2rem, 4vw, 3rem); color: var(--paper); }
.podcast h2 em { font-style: italic; color: var(--spark); font-weight: 400; }
.podcast p { color: rgba(251, 247, 240, 0.85); max-width: 45ch; margin-top: 1.2rem; }
.podcast__actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-items: flex-start;
}
.podcast__link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 1.6rem;
  background: rgba(255,255,255, 0.06);
  border: 1px solid rgba(255,255,255, 0.14);
  color: var(--paper);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.25s;
  min-width: 260px;
}
.podcast__link:hover { background: rgba(255,255,255, 0.12); }
.podcast__link strong { font-weight: 600; }
.podcast__link .arrow { margin-left: auto; color: var(--spark); }

@media (max-width: 800px) {
  .podcast__inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* About */
.about {
  padding: var(--section-pad) 0;
}
.about__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.about h2 { max-width: 20ch; }
.about p { margin-top: 1.2rem; }

@media (max-width: 800px) {
  .about__inner { grid-template-columns: 1fr; gap: 2rem; }
}

/* App teaser */
.app-teaser {
  background: var(--paper-2);
  padding: var(--section-pad) 0;
  text-align: center;
}
.app-teaser__inner { max-width: 640px; margin: 0 auto; }
.app-teaser h2 { margin: 1rem auto 1.5rem; }
.app-teaser p { color: var(--text-mute); max-width: 52ch; margin: 0 auto 2rem; line-height: 1.6; }

/* Social */
.social-strip {
  padding: 4rem 0;
  text-align: center;
}
.social-strip h3 {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--spark-deep);
  margin-bottom: 1.8rem;
}
.social-strip__grid {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.social-strip__grid a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.6rem 1rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.social-strip__grid a:hover { color: var(--spark-deep); border-bottom-color: var(--spark); }

/* Footer */
.footer {
  background: var(--teal-deep);
  color: rgba(251, 247, 240, 0.75);
  padding: 3.5rem 0 2rem;
  font-size: 0.88rem;
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255, 0.08);
}
.footer__brand h4 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--paper);
  font-weight: 400;
  margin-bottom: 0.6rem;
}
.footer__brand h4 em { color: var(--spark); font-style: italic; }
.footer__brand p { color: rgba(251, 247, 240, 0.55); max-width: 34ch; }
.footer h5 {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--spark);
  font-weight: 600;
  margin-bottom: 1rem;
}
.footer ul { list-style: none; }
.footer li { padding: 0.3rem 0; }
.footer a { color: rgba(251, 247, 240, 0.72); transition: color 0.2s; }
.footer a:hover { color: var(--paper); }
.footer__bottom {
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: rgba(251, 247, 240, 0.5);
}

@media (max-width: 800px) {
  .footer__top { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom { flex-direction: column; }
}