/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #1E2850;
  --gold: #C8922A;
  --light-grey: #CFCFCF;
  --off-white: #F5F4F0;
  --dark: #111318;
  --text-muted: #6B7280;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--dark);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }

.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  display: block;
}

/* ===== NAV ===== */
.navbar {
  background: #fff;
  padding: 0;
  border-bottom: 1px solid #EBEBEB;
  box-shadow: 0 1px 8px rgba(30,40,80,0.06);
}

.navbar-brand img {
  height: 48px;
}

.navbar-nav .nav-link {
  color: var(--navy) !important;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 1rem !important;
  transition: color 0.2s;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--gold) !important;
}

.navbar-toggler { border: 1px solid rgba(30,40,80,0.2); }
.navbar-toggler-icon { filter: none; }

/* ===== HERO ===== */
#hero {
  background: var(--navy);
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Corrugated paper SVG watermark */
.hero-corrugated-bg {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.035;
  pointer-events: none;
  overflow: hidden;
}

.hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-title span {
  color: var(--gold);
  display: block;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.6);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.btn-primary-custom {
  background: var(--gold);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border: none;
  border-radius: 2px;
  text-decoration: none;
  display: inline-block;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary-custom:hover {
  background: #b07d22;
  color: #fff;
  transform: translateY(-1px);
}

.btn-outline-custom {
  background: transparent;
  color: rgba(255,255,255,0.8);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 2px;
  text-decoration: none;
  display: inline-block;
  transition: border-color 0.2s, color 0.2s;
}

.btn-outline-custom:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.hero-stat-block {
  border-left: 2px solid var(--gold);
  padding-left: 1.25rem;
}

.hero-stat-block .stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.04em;
}

.hero-stat-block .stat-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-top: 0.25rem;
}

/* ===== ABOUT ===== */
#about {
  background: var(--off-white);
  padding: 7rem 0;
}

.about-heading {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--navy);
  margin-bottom: 1.5rem;
}

.about-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #444;
  font-weight: 300;
}

.about-highlight {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.divider-gold {
  width: 60px;
  height: 3px;
  background: var(--gold);
  margin-bottom: 2rem;
}

.reach-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--light-grey);
}

.reach-item:last-child { border-bottom: none; }

.reach-region {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.reach-desc {
  font-size: 0.95rem;
  color: var(--dark);
  font-weight: 500;
}

/* ===== PRODUCTS ===== */
#products {
  background: #fff;
  padding: 7rem 0;
}

.products-heading {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.product-intro {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 540px;
  font-weight: 300;
}

/* Paper spec table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-top: 2.5rem;
}

.spec-table thead tr {
  background: var(--navy);
  color: #fff;
}

.spec-table thead th {
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.spec-table tbody tr {
  border-bottom: 1px solid #EBEBEB;
  transition: background 0.15s;
}

.spec-table tbody tr:hover { background: var(--off-white); }

.spec-table tbody td {
  padding: 0.9rem 1.25rem;
  color: var(--dark);
  font-weight: 400;
  vertical-align: middle;
}

.shade-chip {
  display: inline-block;
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1px solid var(--light-grey);
  vertical-align: middle;
  margin-right: 0.4rem;
}

.shade-natural { background: #E8D5B7; }
.shade-golden  { background: #D4A017; }

.badge-custom {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
}

.badge-packaging { background: rgba(30,40,80,0.08); color: var(--navy); }
.badge-industrial { background: rgba(200,146,42,0.12); color: #8a6010; }

.product-callout {
  background: var(--navy);
  border-radius: 4px;
  padding: 2.5rem;
  margin-top: 3rem;
  color: #fff;
}

.product-callout h4 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: #fff;
}

.product-callout p {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
  line-height: 1.7;
  font-weight: 300;
}

/* ===== MILLS ===== */
#mills {
  background: var(--off-white);
  padding: 7rem 0;
}

.mills-heading {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.mill-card {
  background: #fff;
  border: 1px solid #EBEBEB;
  border-radius: 4px;
  padding: 2.5rem 2rem;
  height: 100%;
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.mill-card:hover {
  box-shadow: 0 8px 32px rgba(30,40,80,0.1);
  transform: translateY(-3px);
}

.mill-logo-wrap {
  height: 56px;
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.mill-logo-wrap img {
  max-height: 48px;
  max-width: 160px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: filter 0.2s, opacity 0.2s;
}

.mill-logo-wrap img.logo-sipm {
  max-height: 72px;
  max-width: 192px;
}

.mill-card:hover .mill-logo-wrap img {
  filter: grayscale(0%);
  opacity: 1;
}

.mill-no-logo {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--navy);
  opacity: 0.4;
  border: 1px solid var(--light-grey);
  padding: 0.4rem 0.75rem;
  border-radius: 2px;
}

.mill-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}

.mill-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
}

/* ===== CONTACT ===== */
#contact {
  background: var(--navy);
  padding: 7rem 0;
  position: relative;
  overflow: hidden;
}


.contact-heading {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: #fff;
  margin-bottom: 0.5rem;
}

.contact-sub {
  color: rgba(255,255,255,0.5);
  font-size: 1rem;
  font-weight: 300;
  margin-bottom: 3rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 40px; height: 40px;
  background: rgba(200,146,42,0.15);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-icon svg {
  width: 18px; height: 18px;
  stroke: var(--gold);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-info-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.contact-info-value {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.6;
}

.contact-info-value a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color 0.2s;
}

.contact-info-value a:hover { color: var(--gold); }

/* Contact form */
.contact-form-wrap {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  padding: 2.5rem;
}

.contact-form-wrap .form-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0.4rem;
}

.contact-form-wrap .form-control {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 2px;
  color: #fff;
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.contact-form-wrap .form-control::placeholder { color: rgba(255,255,255,0.25); }

.contact-form-wrap .form-control:focus {
  background: rgba(255,255,255,0.09);
  border-color: var(--gold);
  box-shadow: none;
  color: #fff;
  outline: none;
}

/* ===== FOOTER ===== */
footer {
  background: var(--dark);
  padding: 2rem 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-brand img {
  height: 32px;
  filter: brightness(0) invert(1);
  opacity: 0.6;
}

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  font-weight: 300;
}

/* ===== UTILITY ===== */
.text-gold { color: var(--gold); }
.text-navy { color: var(--navy); }
.bg-navy  { background: var(--navy); }

@media (max-width: 767px) {
  #hero { min-height: auto; padding: 6rem 0 4rem; }
  .hero-stats { margin-top: 3rem; }
  .contact-form-wrap { margin-top: 3rem; padding: 1.75rem; }
}