/* ============================================
   GOLDEN RATIO DESIGN SYSTEM
   φ = 1.618
   ============================================ */

:root {
  /* ---- Golden Ratio Constants ---- */
  --phi: 1.618;

  /* Font Scale (base 16px × φ^n) */
  --fs-xs:   0.625rem;   /* 10px */
  --fs-sm:   0.813rem;   /* 13px */
  --fs-base: 1rem;       /* 16px */
  --fs-md:   1.618rem;   /* 25.9px */
  --fs-lg:   2.618rem;   /* 41.9px */
  --fs-xl:   4.236rem;   /* 67.8px */
  --fs-2xl:  6.854rem;   /* 109.7px */

  /* Spacing Scale (base 8px × φ^n) */
  --sp-xs:   0.313rem;   /* 5px */
  --sp-sm:   0.5rem;     /* 8px */
  --sp-md:   0.813rem;   /* 13px */
  --sp-lg:   1.313rem;   /* 21px */
  --sp-xl:   2.125rem;   /* 34px */
  --sp-2xl:  3.438rem;   /* 55px */
  --sp-3xl:  5.563rem;   /* 89px */

  /* Layout (max 1200px) */
  --max-width: 75rem;       /* 1200px */
  --golden-major: 61.8%;    /* 1/φ */
  --golden-minor: 38.2%;    /* 1 - 1/φ */

  /* ---- Color Palette ---- */
  --color-walnut:     #5C4033;
  --color-oak:        #8B6914;
  --color-linen:      #FAF0E6;
  --color-cream:      #FFFDD0;
  --color-sage:       #9CAF88;
  --color-sage-dark:  #7A8F6E;
  --color-gold:       #C5A355;
  --color-gold-light: #D4B96E;
  --color-charcoal:   #2C2C2C;
  --color-warm-gray:  #A89B8C;
  --color-white:      #FEFEFE;

  /* ---- Misc ---- */
  --radius:  0.313rem;
  --radius-lg: 0.5rem;
  --shadow:  0 2px 12px rgba(92, 64, 51, 0.08);
  --shadow-hover: 0 6px 24px rgba(92, 64, 51, 0.14);
  --transition: 0.3s ease;

  /* Nav height */
  --nav-h: 4rem;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

body {
  font-family: 'Lato', 'Segoe UI', sans-serif;
  font-size: var(--fs-base);
  color: var(--color-walnut);
  background: var(--color-linen);
}

h1, h2, h3, h4 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: var(--fs-xl); }
h2 { font-size: var(--fs-lg); margin-bottom: var(--sp-lg); }
h3 { font-size: var(--fs-md); }

p {
  max-width: 65ch;
  color: #6B5B50;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
}

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

.section--alt {
  background: var(--color-cream);
}

.golden-grid {
  display: grid;
  grid-template-columns: var(--golden-major) var(--golden-minor);
  gap: var(--sp-2xl);
  align-items: center;
}

.section-label {
  font-family: 'Lato', sans-serif;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--sp-md);
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(250, 240, 230, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(197, 163, 85, 0.2);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.nav__logo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-walnut);
}

.nav__logo span {
  color: var(--color-gold);
}

.nav__links {
  display: flex;
  gap: var(--sp-xl);
}

.nav__links a {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-warm-gray);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-walnut);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-xs);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-walnut);
  margin: 5px 0;
  transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-h);
  background:
    radial-gradient(ellipse at 30% 50%, rgba(197, 163, 85, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(156, 175, 136, 0.06) 0%, transparent 50%),
    var(--color-linen);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 38.2vw;
  height: 38.2vw;
  border: 1px solid rgba(197, 163, 85, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.hero__content {
  max-width: 50rem;
  padding: var(--sp-2xl);
}

.hero__tagline {
  font-family: 'Lato', sans-serif;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--sp-lg);
}

.hero h1 {
  margin-bottom: var(--sp-lg);
  color: var(--color-walnut);
}

.hero__sub {
  font-size: var(--fs-md);
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  color: var(--color-warm-gray);
  margin-bottom: var(--sp-2xl);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--sp-md) var(--sp-xl);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-sage);
  color: var(--color-white);
  border-color: var(--color-sage);
}

.btn--primary:hover {
  background: var(--color-sage-dark);
  border-color: var(--color-sage-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn--outline {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn--outline:hover {
  background: var(--color-gold);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--small {
  padding: var(--sp-xs) var(--sp-md);
  font-size: var(--fs-xs);
}

/* ============================================
   ABOUT
   ============================================ */

.about__image {
  width: 100%;
  aspect-ratio: 1 / 1.618;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, #8B7355 0%, #A0926B 25%, #6B5B4E 50%, #9C8B6E 75%, #7A6B55 100%);
  position: relative;
  overflow: hidden;
}

.about__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 3px,
      rgba(255,255,255,0.03) 3px,
      rgba(255,255,255,0.03) 6px
    );
}

.about__text p {
  margin-bottom: var(--sp-lg);
  line-height: 1.8;
}

.about__text p:first-of-type::first-letter {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--fs-lg);
  float: left;
  margin-right: var(--sp-sm);
  line-height: 1;
  color: var(--color-gold);
}

/* ============================================
   SHOP / PRODUCT CARDS
   ============================================ */

.shop__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-xl);
  margin-top: var(--sp-xl);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-top: 3px solid var(--color-gold);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.product-card__image {
  width: 100%;
  aspect-ratio: 1.618 / 1;
  position: relative;
  overflow: hidden;
}

.product-card__body {
  padding: var(--sp-lg);
}

.product-card__category {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-sage);
  margin-bottom: var(--sp-xs);
}

.product-card__name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--fs-md);
  margin-bottom: var(--sp-sm);
}

.product-card__desc {
  font-size: var(--fs-sm);
  color: var(--color-warm-gray);
  margin-bottom: var(--sp-md);
  line-height: 1.6;
}

.product-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--sp-md);
  border-top: 1px solid rgba(197,163,85,0.15);
}

.product-card__price {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--fs-md);
  color: var(--color-walnut);
  font-weight: 700;
}

/* ============================================
   TESTIMONIALS / PAST WORK
   ============================================ */

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-xl);
  margin-top: var(--sp-xl);
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--sp-xl);
  box-shadow: var(--shadow);
  position: relative;
  border-left: 3px solid var(--color-gold);
}

.testimonial-card__stars {
  color: var(--color-gold);
  font-size: var(--fs-base);
  margin-bottom: var(--sp-md);
  letter-spacing: 2px;
}

.testimonial-card__quote {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-size: var(--fs-base);
  line-height: 1.8;
  color: var(--color-walnut);
  margin-bottom: var(--sp-lg);
}

.testimonial-card__quote::before {
  content: '\201C';
  font-size: var(--fs-lg);
  color: var(--color-gold-light);
  line-height: 0;
  vertical-align: -0.3em;
  margin-right: 0.1em;
}

.testimonial-card__author {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-walnut);
}

.testimonial-card__piece {
  font-size: var(--fs-xs);
  color: var(--color-warm-gray);
  margin-top: var(--sp-xs);
}

.testimonial-card__location {
  font-size: var(--fs-xs);
  color: var(--color-warm-gray);
}

/* ============================================
   CONTACT
   ============================================ */

.contact__wrapper {
  max-width: calc(var(--max-width) * 0.618);
  margin: 0 auto;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-lg);
  margin-top: var(--sp-xl);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xs);
}

.form-group label {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-walnut);
}

.form-group input,
.form-group textarea {
  padding: var(--sp-md);
  border: 1px solid rgba(197, 163, 85, 0.3);
  border-radius: var(--radius);
  background: var(--color-white);
  font-size: var(--fs-base);
  color: var(--color-walnut);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(197, 163, 85, 0.1);
}

.form-group textarea {
  min-height: 10rem;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

.form-message {
  padding: var(--sp-md);
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  font-weight: 700;
  display: none;
}

.form-message--success {
  display: block;
  background: rgba(156, 175, 136, 0.15);
  color: var(--color-sage-dark);
  border: 1px solid var(--color-sage);
}

.form-message--error {
  display: block;
  background: rgba(180, 80, 60, 0.1);
  color: #8B3A2A;
  border: 1px solid #C47060;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-charcoal);
  color: rgba(250, 240, 230, 0.6);
  padding: var(--sp-2xl) 0;
  text-align: center;
  font-size: var(--fs-sm);
}

.footer__brand {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--fs-md);
  color: var(--color-gold);
  margin-bottom: var(--sp-md);
}

.footer p {
  margin: 0 auto;
}

/* ============================================
   LOADING / EMPTY STATES
   ============================================ */

.loading {
  text-align: center;
  padding: var(--sp-2xl);
  color: var(--color-warm-gray);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gold-light);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: var(--sp-sm);
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   RESPONSIVE (≤ 768px)
   ============================================ */

@media (max-width: 768px) {
  h1 { font-size: var(--fs-lg); }
  h2 { font-size: var(--fs-md); }

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

  .golden-grid > :last-child {
    order: -1;
  }

  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(250, 240, 230, 0.98);
    padding: var(--sp-lg);
    gap: var(--sp-lg);
    border-bottom: 1px solid rgba(197, 163, 85, 0.2);
  }

  .nav__toggle { display: block; }

  .shop__grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero__content { padding: var(--sp-lg); }
  .hero__sub { font-size: var(--fs-base); }

  .section { padding: var(--sp-2xl) 0; }
}