/* ============================================================
   WWS AGRO CULTURE SANCTUARY — WALKTHROUGH PAGE
   Design system: organic / regenerative agriculture / Hawaiian
   ============================================================ */

/* ---------- Fonts ---------- */
@import url('https://api.fontshare.com/v2/css?f[]=zodiak@400,500,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@300..700&display=swap');

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.12; font-family: var(--font-display); font-weight: 500; }
p, li, figcaption { text-wrap: pretty; }
::selection { background: color-mix(in oklab, var(--color-primary) 30%, transparent); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 4px; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Design tokens ---------- */
:root {
  /* type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);
  --text-hero: clamp(2.75rem, 0.8rem + 6vw, 6.5rem);

  /* spacing */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  /* fonts */
  --font-display: 'Zodiak', Georgia, serif;
  --font-body: 'Work Sans', 'Helvetica Neue', sans-serif;

  /* radius */
  --radius-sm: 0.375rem; --radius-md: 0.625rem; --radius-lg: 1rem; --radius-xl: 1.5rem; --radius-full: 9999px;

  --transition: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ===== Light mode palette — Hawaiian regenerative agriculture ===== */
  --color-bg: #f8f7f1;
  --color-surface: #ffffff;
  --color-surface-2: #f2f0e6;
  --color-surface-offset: #ece7d8;
  --color-border: #ddd6c2;
  --color-divider: #e6e1d1;

  --color-text: #1c2418;
  --color-text-muted: #52604b;
  --color-text-faint: #93987f;
  --color-text-inverse: #f8f7f1;

  --color-primary: #026947;      /* deep green — WWS brand */
  --color-primary-hover: #015438;
  --color-primary-active: #013e29;
  --color-primary-highlight: #d3e6da;

  --color-accent: #a8c545;       /* lime accent */
  --color-accent-hover: #8fac36;
  --color-accent-dark: #5f7a1f;

  --color-earth: #8a5a2b;        /* volcanic soil / lava rock brown */
  --color-water: #1b6f89;        /* pond / aquaponic water blue */
  --color-flower: #c0472e;       /* ohia lehua / tropical flower red */

  --shadow-sm: 0 1px 2px rgba(20, 30, 15, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 30, 15, 0.10);
  --shadow-lg: 0 20px 48px rgba(20, 30, 15, 0.16);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1240px;
}

[data-theme='dark'] {
  --color-bg: #10160f;
  --color-surface: #161d13;
  --color-surface-2: #1b2317;
  --color-surface-offset: #1f281a;
  --color-border: #2c3626;
  --color-divider: #262f21;

  --color-text: #e7ecdf;
  --color-text-muted: #a3ae94;
  --color-text-faint: #6c7660;
  --color-text-inverse: #10160f;

  --color-primary: #3a9d72;
  --color-primary-hover: #4fb583;
  --color-primary-active: #2c7d59;
  --color-primary-highlight: #1f3a2b;

  --color-accent: #c3dd6a;
  --color-accent-hover: #d3e88a;
  --color-accent-dark: #94ab4c;

  --color-earth: #b98453;
  --color-water: #4fa3c0;
  --color-flower: #e17c5f;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 20px 48px rgba(0,0,0,0.45);
}

/* ---------- Layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-12));
}
.wrap--narrow { max-width: var(--content-default); }
section { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
  transition: transform var(--transition), box-shadow var(--transition);
}
.site-header--hidden { transform: translateY(-100%); }
.site-header--scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--space-4);
}
.brand { display: flex; align-items: center; gap: var(--space-3); }
.brand-mark { width: 40px; height: 40px; flex-shrink: 0; color: var(--color-primary); }
.brand-name { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 500; line-height: 1.1; }
.brand-name span { display: block; font-family: var(--font-body); font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 500; letter-spacing: 0.04em; }

.main-nav { display: flex; align-items: center; gap: var(--space-6); }
.main-nav a {
  font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted);
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--color-primary); }
.nav-links { display: flex; gap: var(--space-6); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-flower); color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: #a53a25; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline {
  border: 1.5px solid var(--color-primary); color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-ghost { color: var(--color-text-muted); }
.btn-ghost:hover { color: var(--color-primary); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }

.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: var(--radius-full);
  color: var(--color-text-muted); transition: background var(--transition), color var(--transition);
}
.theme-toggle:hover { background: var(--color-surface-2); color: var(--color-primary); }

.menu-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; color: var(--color-text); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: flex-end;
  padding-block: clamp(var(--space-10), 6vw, var(--space-16));
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,20,10,0.15) 0%, rgba(8,16,8,0.35) 55%, rgba(6,12,6,0.86) 100%);
}
.hero-content { position: relative; z-index: 1; color: #f8f7f1; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-accent); margin-bottom: var(--space-5);
}
.hero-eyebrow::before { content: ''; width: 24px; height: 1.5px; background: var(--color-accent); }
.hero h1 {
  font-size: clamp(2.5rem, 0.8rem + 5.5vw, 5.5rem); font-weight: 500; max-width: 16ch; color: #fdfcf6;
  text-shadow: 0 4px 24px rgba(0,0,0,0.25);
}
.hero-sub { font-size: var(--text-lg); max-width: 56ch; margin-top: var(--space-5); color: #eef0e4; font-weight: 300; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr));
  gap: var(--space-6); margin-top: var(--space-10);
  border-top: 1px solid rgba(255,255,255,0.22); padding-top: var(--space-6);
  max-width: 900px;
}
.hero-stat-num { font-family: var(--font-display); font-size: var(--text-xl); color: var(--color-accent); }
.hero-stat-label { font-size: var(--text-xs); color: #d8dccb; text-transform: uppercase; letter-spacing: 0.06em; margin-top: var(--space-1); }

/* ---------- Intro / overview ---------- */
.overview {
  background: var(--color-surface);
}
.overview-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-16); align-items: start; }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: var(--space-4);
}
.eyebrow::before { content: ''; width: 20px; height: 2px; background: var(--color-accent); border-radius: 2px; }
.section-title { font-size: var(--text-2xl); max-width: 16ch; }
.lede { font-size: var(--text-lg); color: var(--color-text-muted); margin-top: var(--space-5); max-width: 58ch; font-weight: 300; }
.overview-facts { display: grid; gap: var(--space-4); }
.fact-card {
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-6);
  display: flex; gap: var(--space-4); align-items: flex-start;
}
.fact-icon {
  width: 44px; height: 44px; flex-shrink: 0; border-radius: var(--radius-md);
  background: var(--color-primary-highlight); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
}
.fact-card h3 { font-size: var(--text-base); font-family: var(--font-body); font-weight: 700; }
.fact-card p { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-1); }

/* ---------- Walkthrough intro strip ---------- */
.walk-intro {
  background: var(--color-primary); color: #fdfcf6;
  position: relative; overflow: hidden;
}
.walk-intro::before {
  content: ''; position: absolute; inset: 0; opacity: 0.10;
  background-image: radial-gradient(circle at 15% 30%, #fff 0, transparent 40%), radial-gradient(circle at 85% 70%, #fff 0, transparent 45%);
}
.walk-intro-inner { position: relative; text-align: center; max-width: 760px; margin-inline: auto; }
.walk-intro h2 { font-size: var(--text-2xl); color: #fff; }
.walk-intro p { font-size: var(--text-lg); color: #dcecdf; margin-top: var(--space-5); font-weight: 300; }
.walk-steps {
  display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-10);
}
.walk-step-chip {
  font-size: var(--text-xs); font-weight: 600; padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(255,255,255,0.35); border-radius: var(--radius-full); color: #eef4e9;
}

/* ---------- Station / walkthrough sections ---------- */
.station {
  position: relative;
}
.station-number {
  font-family: var(--font-display); font-size: var(--text-3xl); color: var(--color-primary-highlight);
  -webkit-text-stroke: 1.5px var(--color-primary); color: transparent;
  line-height: 1; margin-bottom: var(--space-4);
}
.station-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-10), 6vw, var(--space-20)); align-items: center;
}
.station-grid.reverse .station-media { order: 2; }
.station-grid.reverse .station-text { order: 1; }
.station-media { position: relative; }
.station-media img {
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3; object-fit: cover; width: 100%;
}
.station-media.wide img { aspect-ratio: 16/9; }
.station-tag {
  position: absolute; bottom: var(--space-5); left: var(--space-5);
  background: color-mix(in oklab, var(--color-bg) 92%, transparent); backdrop-filter: blur(8px);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 700; color: var(--color-primary);
  box-shadow: var(--shadow-sm); text-transform: uppercase; letter-spacing: 0.05em;
}
.station-title { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.station-text p { color: var(--color-text-muted); margin-bottom: var(--space-4); }
.station-text p:last-child { margin-bottom: 0; }
.station-text strong { color: var(--color-text); font-weight: 600; }

.spec-list { display: grid; gap: var(--space-3); margin-top: var(--space-6); }
.spec-item {
  display: flex; gap: var(--space-3); align-items: flex-start;
  padding: var(--space-3) 0; border-top: 1px solid var(--color-divider);
}
.spec-item:first-child { border-top: none; padding-top: 0; }
.spec-item svg { flex-shrink: 0; color: var(--color-accent-dark); margin-top: 3px; }
.spec-item .label { font-weight: 600; font-size: var(--text-sm); }
.spec-item .val { color: var(--color-text-muted); font-size: var(--text-sm); }

.diy-callout {
  margin-top: var(--space-8); background: var(--color-primary-highlight);
  border-left: 3px solid var(--color-primary); border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
}
.diy-callout .label { font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-primary); display: flex; align-items: center; gap: var(--space-2); }
.diy-callout p { font-size: var(--text-sm); color: var(--color-text); margin-top: var(--space-2); }

.alt-bg { background: var(--color-surface-2); }
.alt-bg2 { background: var(--color-surface); }

/* Divider band between stations */
.station + .station { border-top: 1px solid var(--color-divider); }

/* ---------- Signature feature banner ---------- */
.signature-banner {
  text-align: center; padding-block: clamp(var(--space-10), 5vw, var(--space-16));
  background: var(--color-surface-offset);
}
.signature-banner .eyebrow { justify-content: center; }
.signature-banner h2 { font-size: var(--text-2xl); max-width: 20ch; margin-inline: auto; }

/* ---------- Grounds map / grid features (secondary spots) ---------- */
.grounds-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6);
}
.ground-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.ground-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.ground-card img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.ground-card-body { padding: var(--space-6); }
.ground-card h3 { font-size: var(--text-base); font-family: var(--font-body); font-weight: 700; }
.ground-card p { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-2); }

/* ---------- Plant index ---------- */
.plant-index { background: var(--color-primary); color: #fdfcf6; }
.plant-index .eyebrow { color: var(--color-accent); }
.plant-index .eyebrow::before { background: var(--color-accent); }
.plant-index h2 { color: #fff; font-size: var(--text-2xl); max-width: 20ch; }
.plant-index .lede { color: #dcecdf; }
.plant-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-3); margin-top: var(--space-10);
}
.plant-chip {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-md); padding: var(--space-4);
  font-size: var(--text-sm); font-weight: 500; text-align: center;
  transition: background var(--transition);
}
.plant-chip:hover { background: rgba(255,255,255,0.16); }

/* ---------- Donate campaign ---------- */
.donate {
  position: relative; overflow: hidden;
  background: var(--color-surface-offset);
}
.donate-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-16); align-items: center; }
.donate h2 { font-size: var(--text-2xl); }
.donate .lede { margin-top: var(--space-5); }
.donate-progress { margin-top: var(--space-10); }
.progress-labels { display: flex; justify-content: space-between; font-size: var(--text-sm); margin-bottom: var(--space-2); font-weight: 600; }
.progress-track { height: 12px; background: var(--color-border); border-radius: var(--radius-full); overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent)); border-radius: var(--radius-full); }
.progress-caption { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-2); }

.donate-tiers { display: grid; gap: var(--space-4); }
.tier-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-6);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.tier-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }
.tier-amount { font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-primary); flex-shrink: 0; }
.tier-desc { font-size: var(--text-sm); color: var(--color-text-muted); flex: 1; }
.tier-card .btn { flex-shrink: 0; }

.donate-cta-box {
  background: var(--color-primary); color: #fff; border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-12)); text-align: center;
  box-shadow: var(--shadow-lg);
}
.donate-cta-box h3 { color: #fff; font-size: var(--text-xl); }
.donate-cta-box p { color: #dcecdf; margin-top: var(--space-3); font-size: var(--text-sm); }
.donate-cta-box .btn-primary { margin-top: var(--space-6); width: 100%; }
.donate-cta-box .fine-print { font-size: var(--text-xs); color: #b9d0bf; margin-top: var(--space-4); }

/* ---------- CTA banner (bottom) ---------- */
.cta-banner {
  text-align: center; background: var(--color-surface);
}
.cta-banner h2 { font-size: var(--text-2xl); max-width: 18ch; margin-inline: auto; }
.cta-banner p { color: var(--color-text-muted); margin-top: var(--space-4); max-width: 52ch; margin-inline: auto; font-size: var(--text-lg); font-weight: 300; }
.cta-banner .hero-actions { justify-content: center; margin-top: var(--space-8); }

/* ---------- Footer ---------- */
.site-footer { background: #10160f; color: #cdd6c3; padding-block: var(--space-16) var(--space-10); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-12); }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-name span { color: #97a487; }
.footer-brand p { font-size: var(--text-sm); color: #97a487; margin-top: var(--space-4); max-width: 40ch; }
.footer-col h4 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; color: #97a487; font-family: var(--font-body); font-weight: 700; margin-bottom: var(--space-4); }
.footer-col a, .footer-col p { display: block; font-size: var(--text-sm); color: #d5dbc9; margin-bottom: var(--space-3); transition: color var(--transition); }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  margin-top: var(--space-16); padding-top: var(--space-8); border-top: 1px solid #263021;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-4);
  font-size: var(--text-xs); color: #7c8a6e;
}

/* ---------- Reveal-on-scroll ---------- */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .overview-grid, .station-grid, .donate-grid { grid-template-columns: 1fr; }
  .station-grid.reverse .station-media, .station-grid.reverse .station-text { order: initial; }
  .grounds-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .nav-links, .header-actions .btn-outline { display: none; }
  .menu-toggle { display: flex; }
  .grounds-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .tier-card { flex-direction: column; align-items: flex-start; }
  .tier-card .btn { width: 100%; }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed; inset: 0; z-index: 200; background: var(--color-bg);
  display: flex; flex-direction: column; padding: var(--space-6);
  transform: translateX(100%); transition: transform var(--transition);
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-10); }
.mobile-nav a { font-size: var(--text-xl); font-family: var(--font-display); padding-block: var(--space-4); border-bottom: 1px solid var(--color-divider); }
.mobile-nav .btn { margin-top: var(--space-8); }