/* ==========================================================================
   Fae Design System
   Saorsa Labs — saorsalabs.com

   Color palette derived from Fae's native orb animation and onboarding UI.
   Typography follows the app's serif-forward approach.
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Core palette */
  --bg-deep:        #0a0b0d;
  --bg-surface:     #111214;
  --bg-elevated:    #1a1b1f;
  --bg-card:        rgba(255, 255, 255, 0.04);
  --bg-card-hover:  rgba(255, 255, 255, 0.07);
  --card-border:    rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(255, 255, 255, 0.14);

  /* Warm accents (from onboarding UI) */
  --warm-gold:      #D4A574;
  --warm-rose:      #C4917A;
  --accent:         #E8B88A;
  --accent-dim:     rgba(232, 184, 138, 0.15);
  --accent-glow:    rgba(212, 165, 116, 0.25);
  --green:          #6FCF97;
  --green-dim:      rgba(111, 207, 151, 0.15);

  /* Scottish palette (from orb animation) */
  --heather-mist:   #B4A8C4;
  --glen-green:     #5F7F6F;
  --loch-grey:      #7A9B8E;
  --autumn-bracken: #A67B5B;
  --silver-mist:    #C8D3D5;
  --rowan-berry:    #8B4653;
  --moss-stone:     #4A5D52;
  --dawn-light:     #E8DED2;
  --peat-earth:     #3D3630;

  /* Text */
  --text-primary:   rgba(255, 255, 255, 0.92);
  --text-secondary: rgba(255, 255, 255, 0.60);
  --text-tertiary:  rgba(255, 255, 255, 0.38);
  --text-accent:    var(--warm-gold);

  /* Typography */
  --font-serif:     'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, 'Times New Roman', serif;
  --font-sans:      -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, Helvetica, Arial, sans-serif;
  --font-mono:      'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', Menlo, monospace;

  /* Spacing scale (rem) */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;
  --space-5xl:  8rem;

  /* Sizing */
  --max-width:      1200px;
  --max-width-narrow: 800px;
  --max-width-wide: 1400px;
  --nav-height:     72px;

  /* Borders & Radii */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 600ms;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg:  0 8px 30px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px var(--accent-glow);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-dim);
  color: var(--text-primary);
}

a {
  color: var(--warm-gold);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover {
  color: var(--accent);
}

img, svg, video, canvas {
  display: block;
  max-width: 100%;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.15;
}

h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
}

h4 {
  font-size: 1.15rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-accent);
}

p {
  max-width: 65ch;
  color: var(--text-secondary);
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-secondary);
}

.serif {
  font-family: var(--font-serif);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.text-accent {
  color: var(--text-accent);
}

.text-gradient {
  background: linear-gradient(135deg, var(--warm-gold) 0%, var(--accent) 50%, var(--warm-rose) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.container--wide {
  max-width: var(--max-width-wide);
}

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section--sm {
  padding: var(--space-3xl) 0;
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out);
}

.nav--scrolled {
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--card-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.nav__logo-orb {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav__links a {
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  letter-spacing: 0.01em;
}

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

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--warm-gold), var(--warm-rose));
  color: var(--bg-deep) !important;
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
  color: var(--bg-deep) !important;
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--warm-gold), var(--warm-rose));
  color: var(--bg-deep);
  box-shadow: 0 2px 16px var(--accent-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 24px var(--accent-glow);
  color: var(--bg-deep);
}

.btn--secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
}

.btn--secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--card-border-hover);
  color: var(--text-primary);
}

.btn--ghost {
  background: transparent;
  color: var(--warm-gold);
  padding: 0.85rem 1rem;
}

.btn--ghost:hover {
  color: var(--accent);
}

.btn--large {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--duration-normal) var(--ease-out);
  backdrop-filter: blur(10px);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-2px);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--warm-gold);
  font-size: 1.4rem;
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card__text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- Badges & Pills ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.35rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: var(--accent-dim);
  color: var(--warm-gold);
  border: 1px solid rgba(212, 165, 116, 0.2);
}

.badge--green {
  background: var(--green-dim);
  color: var(--green);
  border-color: rgba(111, 207, 151, 0.2);
}

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---------- Dividers ---------- */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    var(--card-border) 20%,
    var(--card-border) 80%,
    transparent
  );
  margin: var(--space-3xl) 0;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--card-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__brand-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__brand-text {
  font-size: 0.88rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

.footer__heading {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--card-border);
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer__bottom-links a {
  color: var(--text-tertiary);
  font-size: 0.82rem;
}

.footer__bottom-links a:hover {
  color: var(--text-secondary);
}

/* ---------- Animations ---------- */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-in {
  opacity: 0;
  animation: fade-in-up 0.8s var(--ease-out) forwards;
}

.animate-in--delay-1 { animation-delay: 0.1s; }
.animate-in--delay-2 { animation-delay: 0.2s; }
.animate-in--delay-3 { animation-delay: 0.3s; }
.animate-in--delay-4 { animation-delay: 0.4s; }
.animate-in--delay-5 { animation-delay: 0.5s; }

/* Scroll-triggered animations via IntersectionObserver */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .section { padding: var(--space-3xl) 0; }
  .section--sm { padding: var(--space-2xl) 0; }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 11, 13, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__links a {
    font-size: 1.2rem;
  }

  .nav__toggle {
    display: flex;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .btn--large {
    padding: 0.85rem 1.75rem;
    font-size: 0.95rem;
  }
}