/* =========================================================================
   Sunflex Metalloy Pvt. Ltd. — Shared Design System
   Theme: precision-forged industrial / technical-drawing motif
   ========================================================================= */

:root {
  /* Palette */
  --navy-900: #071B2E;
  --navy-800: #0A2540;
  --navy-700: #123457;
  --navy-600: #1B4B7A;
  --red-600: #C1191F;
  --red-500: #E31E24;
  --red-400: #E74045;
  --red-300: #EB6266;
  --red-100: #FBDDDE;
  --paper-50:  #FBFAF8;
  --paper-100: #F5F4F1;
  --paper-200: #ECEAE4;
  --white:     #FFFFFF;
  --ink-900:   #16202C;
  --ink-700:   #2B3A4A;
  --ink-600:   #4A5568;
  --steel-400: #8A97A6;
  --steel-300: #B3BCC6;
  --line:      #DCE0E5;
  --line-dark: rgba(255,255,255,0.14);

  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink-900);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .font-display {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

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

/* ---------- Eyebrow / dimension-line section labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red-500);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--red-500);
  display: inline-block;
}

/* ---------- Blueprint grid backdrop (hero only — signature restraint) ---------- */
.blueprint-grid {
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 44px 44px;
}

/* ---------- Corner-bracket frame: the signature device ----------
   Registration-mark corners, like a technical drawing datum frame.
   Applied sparingly: hero visual + featured cards on hover/focus. */
.bracket-frame {
  position: relative;
}
.bracket-frame::before,
.bracket-frame::after,
.bracket-frame .bracket-tl,
.bracket-frame .bracket-tr,
.bracket-frame .bracket-bl,
.bracket-frame .bracket-br {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--red-400);
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.bracket-frame::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.bracket-frame::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }
.bracket-frame .bracket-tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.bracket-frame .bracket-bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.bracket-frame:hover::before,
.bracket-frame:hover::after,
.bracket-frame:hover .bracket-tr,
.bracket-frame:hover .bracket-bl,
.bracket-frame.always-framed::before,
.bracket-frame.always-framed::after,
.bracket-frame.always-framed .bracket-tr,
.bracket-frame.always-framed .bracket-bl {
  opacity: 1;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  padding: 0.85rem 1.7rem;
  border-radius: 2px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-red {
  background: linear-gradient(135deg, var(--red-400), var(--red-600));
  color: var(--white);
  box-shadow: 0 4px 14px rgba(227,30,36,0.28);
}
.btn-red:hover {
  background: linear-gradient(135deg, var(--red-300), var(--red-500));
  box-shadow: 0 6px 18px rgba(227,30,36,0.38);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.06);
}
.btn-navy {
  background: var(--navy-800);
  color: var(--white);
}
.btn-navy:hover { background: var(--navy-700); transform: translateY(-1px); }
.btn-ghost-navy {
  background: transparent;
  color: var(--navy-800);
  border-color: var(--navy-800);
}
.btn-ghost-navy:hover { background: var(--navy-800); color: var(--white); }

/* ---------- Header ---------- */
#site-header {
  transition: box-shadow 0.25s ease, background-color 0.25s ease;
}
#site-header.scrolled {
  box-shadow: 0 2px 18px rgba(7,27,46,0.12);
}
.nav-link {
  position: relative;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-700);
  padding: 0.4rem 0;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0%;
  height: 2px;
  background: var(--red-500);
  transition: width 0.2s ease;
}
.nav-link:hover::after { width: 100%; }
.nav-link:hover { color: var(--navy-900); }

.dropdown-panel {
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all 0.18s ease;
}
.has-dropdown:hover .dropdown-panel,
.has-dropdown:focus-within .dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- Cards ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--line);
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.card:hover {
  box-shadow: 0 14px 34px rgba(10,37,64,0.1);
  transform: translateY(-3px);
  border-color: var(--red-300);
}

/* ---------- Tables (spec sheets) ---------- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.spec-table th {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  background: var(--navy-800);
  color: var(--paper-100);
  padding: 0.7rem 0.9rem;
  text-align: left;
  font-weight: 500;
}
.spec-table td {
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-700);
}
.spec-table tr:nth-child(even) td { background: var(--paper-100); }
.spec-table tr:hover td { background: var(--red-100); }

/* ---------- Section dividers ---------- */
.tick-divider {
  height: 1px;
  background: var(--line);
  position: relative;
}

/* ---------- Sticky quote button ---------- */
#sticky-quote {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 60;
  box-shadow: 0 8px 26px rgba(227,30,36,0.4);
}

/* ---------- Utility ---------- */
.text-red { color: var(--red-500); }
.bg-paper { background: var(--paper-100); }
.container-w { max-width: 1240px; margin-left: auto; margin-right: auto; }

.mobile-menu {
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
.mobile-menu.open { transform: translateX(0); }

.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* Breadcrumbs */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--steel-400);
  letter-spacing: 0.02em;
}
.breadcrumb a { color: var(--steel-400); }
.breadcrumb a:hover { color: var(--red-500); }