/* ============================================
   POEMA — Mineral Art Coatings
   Official Website Stylesheet
   ============================================ */

:root {
  --mineral-black: #242628;
  --graphite: #6C6E70;
  --tech-graphite: #3A3D40;
  --stone-grey: #C8C8C8;
  --warm-white: #F5F3EF;
  --off-white: #FAFAF8;
  --it-green: #1F7A4C;
  --it-red: #C5332F;
  --gold: #9A8A6A;
  --nebbia: #BFC3C6;
  --serica: #A8A9AD;
  --sabbia: #C9B8A2;
  --ember: #7A4A3A;
  --sfumato: #E7E4DC;
  --pietra: #9A9C9F;
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
  --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); color: var(--stone-grey); background: var(--mineral-black); line-height: 1.7; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* --- Layout --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.container-wide { max-width: 1440px; margin: 0 auto; padding: 0 32px; }
.section { padding: 120px 0; }
.section-light { background: var(--off-white); color: var(--mineral-black); }
.section-warm { background: var(--warm-white); color: var(--mineral-black); }
.text-center { text-align: center; }

/* --- Typography --- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 300; line-height: 1.2; letter-spacing: 0.02em; }
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }

.section-label {
  font-size: 0.65rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--graphite); margin-bottom: 16px; font-weight: 500;
}
.section-light .section-label, .section-warm .section-label { color: var(--graphite); }

.subtitle { font-size: 1rem; color: var(--graphite); line-height: 1.8; max-width: 600px; }
.section-light .subtitle { color: var(--graphite); }

/* --- Identity Stripe --- */
.identity-stripe { display: flex; height: 3px; width: 120px; margin: 16px 0; }
.identity-stripe div { flex: 1; }
.identity-stripe .g { background: var(--it-green); }
.identity-stripe .w { background: #fff; }
.identity-stripe .r { background: var(--it-red); }
.identity-stripe-center { margin: 16px auto; }

/* --- Navigation --- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; transition: var(--transition); }
.nav.scrolled { background: rgba(36,38,40,0.95); backdrop-filter: blur(12px); padding: 14px 0; }
.nav-inner { max-width: 1440px; margin: 0 auto; padding: 0 32px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: var(--font-body); font-size: 1.1rem; color: #fff; letter-spacing: 0.25em; font-weight: 300; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.6); transition: var(--transition); }
.nav-links a:hover { color: #fff; }
.nav-cta { color: #fff !important; border: 1px solid rgba(255,255,255,0.3); padding: 7px 18px; border-radius: 2px; }
.nav-cta:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.6); }
.nav-lang { font-size: 0.65rem; color: rgba(255,255,255,0.4); border: 1px solid rgba(255,255,255,0.15); padding: 4px 10px; border-radius: 2px; }
.nav-lang:hover { color: rgba(255,255,255,0.7); border-color: rgba(255,255,255,0.4); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; }
.nav-hamburger span { width: 22px; height: 1.5px; background: #fff; transition: var(--transition); }

/* --- Hero --- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(36,38,40,0.85) 0%, rgba(36,38,40,0.4) 50%, rgba(36,38,40,0.6) 100%); }
.hero-content { position: relative; z-index: 1; padding: 0 32px; max-width: 700px; }
.hero-content .container { padding: 0; }
.hero h1 { color: #fff; margin-bottom: 16px; font-weight: 300; }
.hero h1 em { font-style: italic; color: var(--stone-grey); }
.hero .subtitle { color: rgba(255,255,255,0.5); margin-bottom: 40px; }
.hero-scroll { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; color: rgba(255,255,255,0.3); font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase; }
.hero-scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent); animation: scrollPulse 2s ease-in-out infinite; }
@keyframes scrollPulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* --- Buttons --- */
.btn { display: inline-flex; align-items: center; gap: 8px; font-size: 0.72rem; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; padding: 14px 32px; border-radius: 2px; transition: var(--transition); }
.btn-white { border: 1px solid rgba(255,255,255,0.3); color: #fff; }
.btn-white:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.6); }
.btn-dark { border: 1px solid var(--mineral-black); color: var(--mineral-black); }
.btn-dark:hover { background: var(--mineral-black); color: #fff; }
.btn-arrow::after { content: '\2192'; transition: transform var(--transition); }
.btn-arrow:hover::after { transform: translateX(4px); }

/* --- Brand Statement --- */
.brand-statement { padding: 120px 0; text-align: center; }
.brand-statement h2 { color: #fff; max-width: 700px; margin: 0 auto 24px; }
.brand-statement h2 em { font-style: italic; color: var(--stone-grey); }

/* --- Split Section --- */
.split { display: grid; grid-template-columns: 1fr 1fr; min-height: 600px; }
.split-image { overflow: hidden; }
.split-image img { width: 100%; height: 100%; object-fit: cover; }
.split-content { display: flex; flex-direction: column; justify-content: center; padding: 80px 64px; }

/* --- Material Cards --- */
.material-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.material-card { position: relative; aspect-ratio: 4/3; overflow: hidden; cursor: pointer; }
.material-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.material-card:hover img { transform: scale(1.05); }
.material-card-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 32px; background: linear-gradient(to top, rgba(36,38,40,0.85), transparent); }
.material-card-name { font-family: var(--font-display); font-size: 1.4rem; color: #fff; }
.material-card-sub { font-size: 0.75rem; color: rgba(255,255,255,0.5); letter-spacing: 0.08em; margin-top: 4px; }

/* --- Product Grid --- */
.product-showcase { position: relative; }
.product-showcase img { width: 100%; border-radius: 2px; }

/* --- Vessel Gallery --- */
.vessel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; }
.vessel-item { aspect-ratio: 3/4; overflow: hidden; border-radius: 2px; }
.vessel-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.vessel-item:hover img { transform: scale(1.05); }

/* --- Feature Icons --- */
.features-row { display: flex; justify-content: center; gap: 56px; padding: 60px 0; flex-wrap: wrap; }
.feature-item { text-align: center; }
.feature-item img { width: 40px; height: 40px; margin: 0 auto 10px; opacity: 0.7; }
.feature-item span { font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--graphite); display: block; }

/* --- Certification --- */
.cert-ladder { max-width: 800px; margin: 0 auto; }
.cert-level { display: flex; align-items: center; gap: 24px; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.cert-badge { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--graphite); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: var(--graphite); flex-shrink: 0; }
.cert-level:first-child .cert-badge { border-color: var(--gold); color: var(--gold); }
.cert-name { font-family: var(--font-display); font-size: 1.1rem; color: #fff; }
.cert-desc { font-size: 0.8rem; color: var(--graphite); }

/* --- Footer --- */
.footer { background: var(--mineral-black); border-top: 1px solid rgba(255,255,255,0.06); padding: 80px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 60px; }
.footer-brand-name { font-family: var(--font-body); font-size: 1rem; letter-spacing: 0.25em; text-transform: uppercase; color: #fff; margin-bottom: 12px; }
.footer-brand-desc { font-size: 0.8rem; color: var(--graphite); line-height: 1.7; margin-bottom: 20px; }
.footer-col h4 { font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--graphite); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 0.8rem; color: rgba(255,255,255,0.35); padding: 4px 0; transition: var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bar { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; }
.footer-bar span { font-size: 0.7rem; color: rgba(255,255,255,0.2); }

/* --- CTA Section --- */
.cta-section { position: relative; min-height: 400px; display: flex; align-items: center; justify-content: center; text-align: center; }
.cta-section-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.cta-section-bg::after { content: ''; position: absolute; inset: 0; background: rgba(36,38,40,0.75); }
.cta-section-content { position: relative; z-index: 1; }

/* --- Fade In --- */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-d1 { transition-delay: 0.1s; }
.fade-in-d2 { transition-delay: 0.2s; }
.fade-in-d3 { transition-delay: 0.3s; }

/* --- Contact Form --- */
.contact-form { max-width: 560px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--graphite); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid rgba(255,255,255,0.1); border-radius: 2px;
  font-family: var(--font-body); font-size: 0.85rem; background: rgba(255,255,255,0.03); color: #fff; transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: rgba(255,255,255,0.3); }
.form-group textarea { min-height: 100px; resize: vertical; }
.section-light .form-group input, .section-light .form-group select, .section-light .form-group textarea {
  background: #fff; color: var(--mineral-black); border-color: #ddd;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .split { grid-template-columns: 1fr; }
  .material-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .vessel-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .nav-links { display: none; position: fixed; inset: 0; background: rgba(36,38,40,0.98); flex-direction: column; justify-content: center; align-items: center; gap: 20px; }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }
  .split-content { padding: 48px 24px; }
  .material-grid { grid-template-columns: 1fr; }
  .vessel-grid { grid-template-columns: repeat(2, 1fr); }
  .features-row { gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bar { flex-direction: column; gap: 8px; }
  .container { padding: 0 20px; }
}