/* ============================================
   HAPPINESS OPERATING SYSTEM — WEBSITE STYLES
   ============================================ */

:root {
  --teal-deep:    #2A7A6A;
  --teal-dark:    #1E5C4F;
  --teal-mid:     #357A6B;
  --teal-light:   #4A9A89;
  --cream:        #E8D9A0;
  --cream-soft:   #F2EBD0;
  --cream-dim:    #C8BA88;
  --gold:         #C9A84C;
  --gold-light:   #D9BC6E;
  --white:        #FDFAF3;
  --text-dark:    #1A3D36;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Lato', system-ui, sans-serif;
  --max-w:        1100px;
  --section-pad:  100px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--teal-dark);
  color: var(--cream-soft);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.section-eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--cream-soft);
  max-width: 780px;
  margin-bottom: 20px;
  opacity: 0.9;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}
.btn-primary { background: var(--gold); color: var(--teal-dark); border-color: var(--gold); }
.btn-primary:hover { background: var(--gold-light); border-color: var(--gold-light); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--cream); border-color: var(--cream); }
.btn-secondary:hover { background: rgba(232,217,160,0.1); transform: translateY(-1px); }

/* NAV */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 32px;
  background: rgba(30, 92, 79, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--cream);
  font-weight: 600;
}
.nav-star { width: 24px; height: 24px; }
.nav-links { display: flex; list-style: none; gap: 32px; }
.nav-links a {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cream-soft);
  opacity: 0.85;
  transition: opacity 0.2s, color 0.2s;
}
.nav-links a:hover, .nav-links a.active { opacity: 1; color: var(--gold); }
.nav-toggle { display: none; background: none; border: none; color: var(--cream); font-size: 1.4rem; cursor: pointer; }

/* PAGE HEADER (for inner pages) */
.page-header {
  padding: 160px 0 80px;
  background: var(--teal-deep);
  border-bottom: 1px solid rgba(201,168,76,0.15);
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 16px;
}
.page-header p {
  font-size: 1.1rem;
  opacity: 0.85;
  max-width: 600px;
}

/* PAGE CONTENT */
.page-content {
  padding: var(--section-pad) 0;
  background: var(--teal-dark);
}

/* HERO (home only) */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--teal-deep);
  overflow: hidden;
  padding-top: 80px;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 50%, rgba(42,122,106,0.4) 0%, transparent 70%),
    radial-gradient(ellipse 50% 80% at 20% 80%, rgba(30,92,79,0.6) 0%, transparent 60%);
}
.hero-content {
  position: relative; z-index: 2;
  display: flex; align-items: center; gap: 80px;
  max-width: var(--max-w);
  padding: 60px 32px;
  width: 100%;
}
.compass-wrap { flex-shrink: 0; }
.compass-star {
  width: 280px; height: 280px;
  animation: compassSpin 60s linear infinite;
  filter: drop-shadow(0 0 30px rgba(201,168,76,0.25));
}
@keyframes compassSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.hero-eyebrow {
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 16px;
}
.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 700; line-height: 1.1;
  color: var(--cream); margin-bottom: 24px;
}
.hero-sub {
  font-size: 1.15rem; color: var(--cream-soft);
  opacity: 0.88; max-width: 500px;
  margin-bottom: 40px; line-height: 1.75;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.scroll-hint {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%);
  color: var(--gold); opacity: 0.6; font-size: 1.4rem;
  animation: bounce 2s ease infinite; z-index: 2;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* HOME PILLARS */
.pillars-section {
  background: var(--teal-dark);
  padding: var(--section-pad) 0;
  border-top: 1px solid rgba(201,168,76,0.15);
}
.pillars-section h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 600; color: var(--cream); margin-bottom: 16px;
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px; margin-top: 56px;
}
.pillar {
  background: rgba(42,122,106,0.25);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 4px; padding: 36px 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.pillar:hover { border-color: rgba(201,168,76,0.5); transform: translateY(-3px); }
.pillar-icon { color: var(--gold); font-size: 0.5rem; margin-bottom: 16px; letter-spacing: 6px; }
.pillar h3 {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 600;
  color: var(--cream); margin-bottom: 12px;
}
.pillar p { font-size: 0.95rem; opacity: 0.85; line-height: 1.7; }

/* HOME CTA STRIP */
.cta-strip {
  background: var(--teal-deep);
  padding: 80px 0;
  border-top: 1px solid rgba(201,168,76,0.15);
  text-align: center;
}
.cta-strip h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: var(--cream); margin-bottom: 16px;
}
.cta-strip p { opacity: 0.85; margin-bottom: 36px; font-size: 1.05rem; }
.cta-strip .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* APP PAGE */
.app-features {
  list-style: none; margin: 24px 0 36px;
}
.app-features li {
  padding: 12px 0 12px 28px;
  position: relative;
  font-size: 1rem; opacity: 0.9;
  border-bottom: 1px solid rgba(201,168,76,0.1);
}
.app-features li::before { content: '→'; position: absolute; left: 0; color: var(--gold); }
.app-card-showcase {
  background: rgba(42,122,106,0.25);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 8px; padding: 48px;
  text-align: center; margin-top: 48px;
}
.app-card-showcase svg { width: 80px; margin: 0 auto 20px; }
.app-card-showcase h3 {
  font-family: var(--font-display);
  font-size: 1.6rem; color: var(--cream); margin-bottom: 8px;
}
.app-card-showcase p { opacity: 0.8; margin-bottom: 32px; }

/* BOOK PAGE */
.book-layout {
  display: flex; gap: 80px; align-items: flex-start;
}
.book-cover-col { flex-shrink: 0; }
.book-cover {
  width: 220px;
  background: var(--teal-deep);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 4px; padding: 40px 24px;
  text-align: center;
  box-shadow: 6px 6px 20px rgba(0,0,0,0.4), inset -2px 0 6px rgba(0,0,0,0.2);
  transform: rotateY(-8deg);
  transition: transform 0.3s ease;
}
.book-cover:hover { transform: rotateY(0deg); }
.book-cover h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700;
  color: var(--cream); margin-bottom: 20px; line-height: 1.3;
}
.book-star-wrap { width: 100px; margin: 0 auto 20px; }
.book-cover-sub { font-family: var(--font-display); font-size: 0.95rem; color: var(--gold); margin-bottom: 16px; }
.book-cover-author { font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--cream-dim); opacity: 0.8; }
.book-text-col { flex: 1; }
.book-text-col h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: var(--cream); margin-bottom: 20px;
}
.book-text-col p { margin-bottom: 16px; opacity: 0.9; }
.book-quote {
  font-family: var(--font-display);
  font-style: italic; font-size: 1.15rem;
  color: var(--cream);
  border-left: 3px solid var(--gold);
  padding-left: 20px;
  margin: 28px 0 32px !important;
  line-height: 1.6; opacity: 1 !important;
}
.zenodo-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--gold);
  opacity: 0.8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* RESEARCH PAGE */
.research-intro { margin-bottom: 48px; }
.papers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px; margin-bottom: 48px;
}
.paper-card {
  background: rgba(42,122,106,0.2);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 4px; padding: 28px 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.paper-card:hover { border-color: rgba(201,168,76,0.5); transform: translateY(-2px); }
.paper-label {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 10px;
}
.paper-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem; font-weight: 600;
  color: var(--cream); margin-bottom: 12px; line-height: 1.4;
}
.paper-card p { font-size: 0.9rem; opacity: 0.82; line-height: 1.7; margin-bottom: 16px; }
.paper-link {
  font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.08em; color: var(--gold);
  text-transform: uppercase; transition: opacity 0.2s;
}
.paper-link:hover { opacity: 0.7; }
.research-closing {
  font-family: var(--font-display);
  font-style: italic; font-size: 1.1rem;
  color: var(--cream-soft); max-width: 780px;
  opacity: 0.85; line-height: 1.75;
  border-top: 1px solid rgba(201,168,76,0.15);
  padding-top: 40px;
}

/* ABOUT PAGE */
.about-layout { display: flex; gap: 80px; align-items: flex-start; }
.about-card {
  width: 200px; flex-shrink: 0;
  background: rgba(42,122,106,0.25);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 4px; padding: 32px 20px; text-align: center;
}
.about-star { width: 80px; margin: 0 auto 20px; }
.about-card-name { font-family: var(--font-display); font-size: 1.1rem; color: var(--cream); margin-bottom: 4px; }
.about-card-title { font-size: 0.75rem; color: var(--gold); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 4px; }
.about-card-location { font-size: 0.8rem; opacity: 0.6; }
.about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: var(--cream); margin-bottom: 20px;
}
.about-text p { margin-bottom: 16px; opacity: 0.9; }
.inline-link { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }

/* CONTACT PAGE */
.contact-form { max-width: 680px; margin-top: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 24px; }
.form-group label {
  display: block; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(30,92,79,0.5);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 3px; padding: 12px 16px;
  color: var(--cream-soft);
  font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color 0.2s; appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(232,217,160,0.35); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { outline: none; border-color: var(--gold); }
.form-group select option { background: var(--teal-dark); color: var(--cream-soft); }
.check-label {
  display: flex; align-items: flex-start; gap: 12px;
  cursor: pointer; font-size: 0.9rem;
  color: var(--cream-soft) !important;
  text-transform: none !important; letter-spacing: 0 !important;
  opacity: 0.85;
}
.check-label input[type="checkbox"] { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; accent-color: var(--gold); }

/* FOOTER */
footer {
  background: var(--teal-dark);
  border-top: 1px solid rgba(201,168,76,0.2);
  padding: 48px 32px;
}
.footer-inner {
  display: flex; flex-direction: column;
  align-items: center; gap: 24px; text-align: center;
}
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: 1.1rem; color: var(--cream);
}
.footer-star { width: 24px; }
.footer-links { display: flex; gap: 32px; flex-wrap: wrap; justify-content: center; }
.footer-links a {
  font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--cream-dim); opacity: 0.7; transition: opacity 0.2s;
}
.footer-links a:hover { opacity: 1; color: var(--gold); }
.footer-copy { font-size: 0.8rem; opacity: 0.45; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-content { flex-direction: column; text-align: center; gap: 48px; }
  .compass-star { width: 200px; height: 200px; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .book-layout, .about-layout { flex-direction: column; gap: 48px; }
  .book-cover { transform: none; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --section-pad: 64px; }
  #nav { padding: 14px 20px; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; top: 60px; left: 0; right: 0;
    background: var(--teal-dark);
    padding: 24px 32px; gap: 20px;
    border-bottom: 1px solid rgba(201,168,76,0.2);
  }
  .container { padding: 0 20px; }
  .pillars-grid, .papers-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .compass-star { animation: none; }
  .scroll-hint { animation: none; }
  * { transition: none !important; }
}