/* ============================================================
   YML Refinery – Main Stylesheet
   Theme: Dark/Bold with Gold Accents
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --gold:          #c9a84c;
  --gold-light:    #e0c36a;
  --gold-dark:     #a8872f;
  --bg-darkest:    #0d0d0d;
  --bg-dark:       #141414;
  --bg-mid:        #1c1c1c;
  --bg-card:       #222222;
  --bg-card-hover: #2a2a2a;
  --text-primary:  #f0ece0;
  --text-secondary:#a89f8c;
  --text-muted:    #6b6356;
  --border:        #2e2a24;
  --border-gold:   rgba(201,168,76,0.3);
  --white:         #ffffff;
  --font-head:     'Raleway', sans-serif;
  --font-body:     'Lato', sans-serif;
  --radius:        4px;
  --radius-lg:     8px;
  --shadow:        0 4px 24px rgba(0,0,0,0.5);
  --shadow-gold:   0 0 24px rgba(201,168,76,0.15);
  --transition:    0.3s ease;
  --container:     1180px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-light); }

ul { list-style: none; }

address { font-style: normal; }

/* --- Container --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; }

h1 em, h2 em { font-style: normal; color: var(--gold); }

p { margin-bottom: 1rem; color: var(--text-secondary); }
p:last-child { margin-bottom: 0; }

/* --- Section Layout --- */
.section { padding: 100px 0; }
.section-dark    { background-color: var(--bg-dark); }
.section-darker  { background-color: var(--bg-darkest); }

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

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

.section-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gold);
  color: var(--bg-darkest);
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: var(--bg-darkest);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: rgba(240,236,224,0.3);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-large { padding: 18px 48px; font-size: 1rem; }
.btn-full  { width: 100%; text-align: center; }

/* ============================================================
   HEADER & NAV
   ============================================================ */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}

.topbar {
  background: var(--bg-darkest);
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  font-size: 0.8rem;
}

.topbar .container {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: center;
}

.topbar a { color: var(--text-secondary); }
.topbar a:hover { color: var(--gold); }
.topbar span { color: var(--text-muted); }

#navbar {
  background: rgba(13,13,13,0.97);
  border-bottom: 1px solid var(--border-gold);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 24px;
}

.logo { display: flex; align-items: center; }

.logo-text {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.logo-text em { font-style: normal; color: var(--gold); }

#nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

#nav-menu a {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius);
  transition: all var(--transition);
}
#nav-menu a:hover { color: var(--gold); }
#nav-menu a.active { color: var(--gold); }

.btn-nav {
  background: var(--gold) !important;
  color: var(--bg-darkest) !important;
  padding: 8px 20px !important;
}
.btn-nav:hover {
  background: var(--gold-light) !important;
  color: var(--bg-darkest) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(10,10,10,0.92) 0%, rgba(26,21,8,0.88) 50%, rgba(13,13,13,0.94) 100%),
    url('../assets/images/hero-bg.webp') center center / cover no-repeat;
  overflow: hidden;
  padding-top: 120px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 50%, rgba(201,168,76,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(201,168,76,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 40px,
    rgba(201,168,76,0.015) 40px,
    rgba(201,168,76,0.015) 41px
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-eyebrow {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.hero h1 {
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid var(--border-gold);
}

.stat strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}

.stat span {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
  display: block;
}

/* ============================================================
   TWO-COLUMN LAYOUT
   ============================================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }

.col-text p { margin-bottom: 1.2rem; }
.col-text h2 { margin-bottom: 24px; }

.check-list { margin-top: 24px; }
.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-size: 0.95rem;
}
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

/* About accent cards */
.col-accent { display: flex; flex-direction: column; gap: 20px; }

.about-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-gold);
}
.about-img-wrap img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
  filter: brightness(0.85) saturate(0.9);
  transition: filter var(--transition);
}
.about-img-wrap:hover img { filter: brightness(0.95) saturate(1.1); }

.accent-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.accent-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.accent-card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}

.accent-number {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}

.accent-icon {
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 8px;
  line-height: 1;
}

.accent-card p { color: var(--text-secondary); margin: 0; font-size: 0.95rem; }

/* Service cards */
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.service-card h3 {
  color: var(--gold);
  margin-bottom: 16px;
  font-size: 1.1rem;
}
.service-card ul { margin: 0; }
.service-card li {
  position: relative;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 8px;
  line-height: 1.5;
}
.service-card li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold-dark);
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: border-color var(--transition), transform var(--transition);
}
.step:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}

.step-number {
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--gold);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 20px;
}

.step h3 {
  color: var(--text-primary);
  margin-bottom: 12px;
}

.step p { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

.step-connector {
  width: 48px;
  flex-shrink: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--border-gold), var(--gold), var(--border-gold));
  margin-top: 56px;
  position: relative;
}
.step-connector::after {
  content: '→';
  position: absolute;
  right: -8px;
  top: -10px;
  color: var(--gold);
  font-size: 1rem;
}

.hiw-note {
  text-align: center;
  margin-top: 56px;
  padding: 24px 32px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.hiw-note p { color: var(--text-secondary); margin: 0; }
.hiw-note a { color: var(--gold); font-weight: 700; }

/* ============================================================
   WHAT WE BUY
   ============================================================ */
.buy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.buy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.buy-card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.buy-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  filter: brightness(0.8) saturate(0.9);
  transition: filter var(--transition), transform var(--transition);
}
.buy-card:hover .buy-card-img {
  filter: brightness(0.95) saturate(1.1);
  transform: scale(1.03);
}
.buy-card-body {
  padding: 22px 20px;
}

.buy-icon {
  font-size: 1.8rem;
  color: var(--gold);
  margin-bottom: 16px;
  line-height: 1;
}

.buy-card h3 { margin-bottom: 10px; font-size: 1rem; color: var(--text-primary); }
.buy-card p  { color: var(--text-secondary); font-size: 0.875rem; margin: 0; line-height: 1.6; }

/* Cards without images keep original padding */
.buy-card:not(:has(.buy-card-img)) { padding: 28px 24px; }

.wwb-cta {
  text-align: center;
  padding: 32px;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}
.wwb-cta p { color: var(--text-secondary); margin-bottom: 20px; font-size: 1.05rem; }
.wwb-cta strong { color: var(--text-primary); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-container { max-width: 800px; }
.faq-list { border-top: 1px solid var(--border); }

.faq-item { border-bottom: 1px solid var(--border); }

.faq-question {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  gap: 24px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: left;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--gold); }
.faq-question[aria-expanded="true"] { color: var(--gold); }

.faq-icon {
  font-size: 1.4rem;
  color: var(--gold);
  flex-shrink: 0;
  font-weight: 300;
  line-height: 1;
  transition: transform var(--transition);
}
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }

.faq-answer {
  padding-bottom: 24px;
  padding-right: 48px;
}
.faq-answer p { color: var(--text-secondary); margin: 0; font-size: 0.95rem; }

/* ============================================================
   SHOP
   ============================================================ */
.shop-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 56px;
}

.shop-feature {
  text-align: center;
  padding: 40px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.shop-icon {
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 20px;
}

.shop-feature h3 { margin-bottom: 12px; }
.shop-feature p  { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

.shop-cta {
  text-align: center;
}
.shop-note {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 64px;
  align-items: start;
}

.contact-block { margin-bottom: 36px; }
.contact-block h3 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.contact-block address,
.contact-block p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin: 0;
}
.contact-block a { color: var(--text-secondary); }
.contact-block a:hover { color: var(--gold); }

.map-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-head);
  color: var(--gold) !important;
  letter-spacing: 0.05em;
}

.hours-table { width: 100%; border-collapse: collapse; }
.hours-table td { padding: 4px 0; color: var(--text-secondary); font-size: 0.9rem; }
.hours-table td:last-child { text-align: right; }
.closed { color: var(--text-muted) !important; }

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-group label span { color: var(--gold); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition);
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group select option { background: var(--bg-card); }

.form-group textarea { resize: vertical; min-height: 100px; }

.form-note {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--bg-darkest);
  border-top: 1px solid var(--border-gold);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 64px;
  padding: 72px 24px;
}

.footer-brand .logo-text {
  font-size: 1.4rem;
  margin-bottom: 16px;
  display: block;
}
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 12px; }

.footer-links h4,
.footer-contact h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--gold); }

.footer-contact address { color: var(--text-muted); font-size: 0.9rem; line-height: 1.9; }
.footer-contact a { color: var(--text-muted); }
.footer-contact a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p { color: var(--text-muted); font-size: 0.8rem; margin: 0; }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--gold);
  color: var(--bg-darkest);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.4rem;
  font-weight: 700;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 999;
  line-height: 1;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--gold-light);
  color: var(--bg-darkest);
  transform: translateY(-3px);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .buy-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 960px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .two-col.reverse { direction: ltr; }

  .steps {
    flex-direction: column;
    gap: 24px;
  }
  .step-connector {
    width: 2px;
    height: 32px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--border-gold), var(--gold), var(--border-gold));
  }
  .step-connector::after { display: none; }

  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 40px; }
  .buy-grid { grid-template-columns: repeat(2, 1fr); }
  .shop-features { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav-toggle { display: flex; }

  #nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-darkest);
    border-top: 1px solid var(--border-gold);
    flex-direction: column;
    padding: 16px 0;
    gap: 0;
  }
  #nav-menu.open { display: flex; }
  #nav-menu a { padding: 14px 24px; width: 100%; }

  #navbar { position: relative; }

  .topbar .container { gap: 12px; font-size: 0.75rem; }

  .hero { padding-top: 140px; min-height: auto; padding-bottom: 80px; }
  .hero-stats { gap: 28px; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; padding: 48px 24px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }

  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }

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

  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .buy-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { text-align: center; }
}