/* ===== SELF-HOSTED FONTS ===== */
@font-face { font-family:'Inter'; font-weight:300; font-display:swap; src:url('fonts/inter-300.woff2') format('woff2'); }
@font-face { font-family:'Inter'; font-weight:400; font-display:swap; src:url('fonts/inter-400.woff2') format('woff2'); }
@font-face { font-family:'Inter'; font-weight:500; font-display:swap; src:url('fonts/inter-500.woff2') format('woff2'); }
@font-face { font-family:'Inter'; font-weight:600; font-display:swap; src:url('fonts/inter-600.woff2') format('woff2'); }

/* ===== VARIABLES ===== */
:root {
  --blue:      #1B4FD8;
  --blue-dk:   #1440B5;
  --blue-lt:   #EEF3FF;
  --blue-mid:  #3B6ECC;
  --accent:    #0EA5E9;
  --ink:       #0F1923;
  --body:      #374151;
  --muted:     #6B7280;
  --border:    #E5E9F0;
  --bg:        #FFFFFF;
  --bg2:       #F8FAFC;
  --bg3:       #EEF2F7;
  --white:     #FFFFFF;
  --font:      'Inter', system-ui, -apple-system, sans-serif;
  --r:         8px;
  --shadow:    0 1px 4px rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.06);
  --shadow-b:  0 4px 24px rgba(27,79,216,0.18);
  --ease:      0.25s ease;
}

/* ===== RESET ===== */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { font-family:var(--font); background:var(--bg); color:var(--body); font-size:16px; line-height:1.65; overflow-x:hidden; -webkit-font-smoothing:antialiased; }
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; display:block; }
.container { max-width:1180px; margin:0 auto; padding:0 28px; }

/* ===== BUTTONS ===== */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 28px; border-radius:var(--r);
  font-weight:600; font-size:0.875rem; letter-spacing:0.02em;
  cursor:pointer; border:none; transition:all var(--ease);
  white-space:nowrap;
}
.btn-primary { background:var(--blue); color:var(--white); }
.btn-primary:hover { background:var(--blue-dk); transform:translateY(-2px); box-shadow:var(--shadow-b); }
.btn-outline { background:transparent; color:var(--blue); border:1.5px solid var(--blue); }
.btn-outline:hover { background:var(--blue-lt); transform:translateY(-2px); }
.btn-outline-white { background:transparent; color:var(--white); border:1.5px solid rgba(255,255,255,0.5); }
.btn-outline-white:hover { background:rgba(255,255,255,0.1); border-color:white; }
.btn-full { width:100%; justify-content:center; padding:14px; }

/* ===== NAVBAR ===== */
.navbar {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:0; background:rgba(255,255,255,0.95);
  backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease);
}
.navbar.scrolled { box-shadow:0 2px 16px rgba(0,0,0,0.08); }
.nav-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}
.logo { display:flex; align-items:center; gap:12px; }
.logo-mark { width:44px; height:44px; flex-shrink:0; }
.logo-mark svg { width:44px; height:44px; }
.logo-mark.small svg { width:36px; height:36px; }
.logo-img { width:48px; height:48px; object-fit:contain; display:block; }
.logo-mark.small .logo-img { width:40px; height:40px; }
.logo-text { display:flex; flex-direction:column; line-height:1.15; }
.logo-main { font-size:1.15rem; font-weight:600; letter-spacing:0.06em; color:var(--ink); }
.logo-sub { font-size:0.52rem; letter-spacing:0.22em; color:var(--blue); text-transform:uppercase; }
.nav-links { display:flex; align-items:center; gap:8px; }
.nav-links a {
  font-size:0.82rem; font-weight:500; letter-spacing:0.04em;
  text-transform:uppercase; color:var(--body); padding:8px 14px;
  border-radius:6px; transition:all var(--ease);
}
.nav-links a:hover { color:var(--blue); background:var(--blue-lt); }
.btn-nav {
  background:var(--blue) !important; color:var(--white) !important;
  padding:9px 22px !important; border-radius:var(--r) !important;
  font-size:0.82rem !important; font-weight:600 !important;
  letter-spacing:0.04em !important;
}
.btn-nav:hover { background:var(--blue-dk) !important; color:var(--white) !important; box-shadow:var(--shadow-b) !important; }
.nav-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:4px; }
.nav-toggle span { display:block; width:22px; height:2px; background:var(--ink); border-radius:2px; transition:all var(--ease); }

/* ===== HERO ===== */
.hero {
  position:relative; min-height:100vh;
  background: linear-gradient(135deg, #0D1F4E 0%, #1B4FD8 50%, #0EA5E9 100%);
  display:flex; align-items:center; overflow:hidden;
}
.hero-bg-wrap { position:absolute; inset:0; overflow:hidden; }
.hero-grid {
  position:absolute; inset:0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size:72px 72px;
}
.hero-overlay {
  position:absolute; inset:0;
  background: radial-gradient(ellipse 70% 80% at 85% 50%, rgba(14,165,233,0.25) 0%, transparent 70%),
              radial-gradient(ellipse 50% 60% at 10% 20%, rgba(255,255,255,0.06) 0%, transparent 60%);
}

/* Hero right-side visual: machined part illustration */
.hero-visual {
  position:absolute; right:0; top:0; bottom:0; width:48%;
  display:flex; align-items:center; justify-content:center;
  opacity:0.12;
}
.hero-visual svg { width:80%; height:80%; }

.hero-content {
  position:relative; z-index:1;
  max-width:600px;
  padding-top:68px; padding-bottom:80px;
}
.hero-badge {
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.7rem; font-weight:600; letter-spacing:0.2em;
  text-transform:uppercase; color:rgba(255,255,255,0.85);
  background:rgba(255,255,255,0.1); border:1px solid rgba(255,255,255,0.2);
  padding:6px 14px; border-radius:100px; margin-bottom:28px;
}
.hero-badge::before { content:''; width:6px; height:6px; border-radius:50%; background:#34D399; flex-shrink:0; }
.hero h1 {
  font-size:clamp(2.6rem, 5.5vw, 4rem); font-weight:600;
  line-height:1.1; color:var(--white); margin-bottom:20px;
  letter-spacing:-0.03em;
}
.hero h1 em { font-style:normal; color:rgba(255,255,255,0.75); font-weight:300; }
.hero p { font-size:1.05rem; color:rgba(255,255,255,0.75); line-height:1.75; max-width:500px; margin-bottom:36px; font-weight:300; }
.hero-btns { display:flex; gap:14px; flex-wrap:wrap; margin-bottom:60px; }
.hero-stats { display:flex; align-items:center; gap:0; flex-wrap:wrap; }
.stat { display:flex; flex-direction:column; padding:0 24px; border-right:1px solid rgba(255,255,255,0.15); }
.stat:first-child { padding-left:0; }
.stat:last-child { border-right:none; }
.stat strong { font-size:1.25rem; font-weight:600; color:var(--white); letter-spacing:-0.02em; }
.stat span { font-size:0.68rem; text-transform:uppercase; letter-spacing:0.1em; color:rgba(255,255,255,0.55); margin-top:2px; }
.stat-divider { display:none; }
.hero-scroll-hint { position:absolute; bottom:36px; right:40px; display:flex; flex-direction:column; align-items:center; gap:6px; color:rgba(255,255,255,0.4); font-size:0.65rem; letter-spacing:0.15em; text-transform:uppercase; writing-mode:vertical-rl; }
.scroll-line { width:1px; height:48px; background:linear-gradient(to bottom, rgba(255,255,255,0.5), transparent); }

/* ===== SECTIONS ===== */
.section { padding:96px 0; }
.section.materials { background:var(--bg2); }
.section.dark { background:var(--ink); }
.section-header { text-align:center; max-width:600px; margin:0 auto 60px; }
.section-header.light h2 { color:var(--white); }
.section-header.light p { color:rgba(255,255,255,0.6); }
.section-tag { display:inline-block; font-size:0.68rem; font-weight:600; letter-spacing:0.2em; text-transform:uppercase; color:var(--blue); background:var(--blue-lt); padding:4px 12px; border-radius:100px; margin-bottom:14px; }
.section.dark .section-tag { background:rgba(27,79,216,0.25); color:#93BBFD; }
.section-header h2 { font-size:clamp(1.8rem,3.5vw,2.6rem); font-weight:600; color:var(--ink); margin-bottom:14px; letter-spacing:-0.02em; }
.section-header p { color:var(--muted); font-size:0.97rem; }

/* ===== CAPABILITIES ===== */
.cap-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.cap-card {
  background:var(--bg); border:1px solid var(--border);
  border-radius:var(--r); padding:28px 24px;
  transition:all var(--ease); position:relative;
}
.cap-card:hover { border-color:var(--blue); box-shadow:var(--shadow); transform:translateY(-3px); }
.cap-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--blue); border-radius:var(--r) var(--r) 0 0; opacity:0; transition:opacity var(--ease); }
.cap-card:hover::before { opacity:1; }
.cap-icon { width:44px; height:44px; background:var(--blue-lt); border-radius:10px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; }
.cap-icon svg { width:22px; height:22px; stroke:var(--blue); }
.cap-card h3 { font-size:0.97rem; font-weight:600; color:var(--ink); margin-bottom:10px; }
.cap-card p { font-size:0.85rem; color:var(--muted); line-height:1.7; margin-bottom:14px; }
.cap-card ul { display:flex; flex-direction:column; gap:5px; }
.cap-card ul li { font-size:0.78rem; color:var(--blue-mid); padding-left:12px; position:relative; }
.cap-card ul li::before { content:'›'; position:absolute; left:0; }

/* ===== MATERIALS ===== */
.mat-tabs { display:flex; gap:4px; margin-bottom:28px; border-bottom:1px solid var(--border); }
.mat-tab { background:none; border:none; padding:10px 22px; font-size:0.82rem; font-weight:500; letter-spacing:0.04em; text-transform:uppercase; color:var(--muted); cursor:pointer; border-bottom:2px solid transparent; margin-bottom:-1px; transition:all var(--ease); border-radius:0; }
.mat-tab:hover { color:var(--blue); }
.mat-tab.active { color:var(--blue); border-bottom-color:var(--blue); }
.mat-panel { display:none; }
.mat-panel.active { display:block; }
.mat-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.mat-item { background:var(--bg); border:1px solid var(--border); border-radius:var(--r); padding:16px 18px; transition:all var(--ease); }
.mat-item:hover { border-color:var(--blue); box-shadow:var(--shadow); }
.mat-name { display:block; font-size:0.88rem; font-weight:600; color:var(--ink); margin-bottom:3px; }
.mat-note { display:block; font-size:0.72rem; color:var(--muted); }

/* ===== INDUSTRIES ===== */
.ind-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.ind-card { background:var(--bg); border:1px solid var(--border); border-radius:var(--r); overflow:hidden; transition:all var(--ease); display:flex; flex-direction:column; }
.ind-card:hover { border-color:var(--blue); box-shadow:var(--shadow-b); transform:translateY(-3px); }
.ind-visual { height:160px; display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden; }
.ind-visual.medical { background:linear-gradient(135deg, #EEF3FF 0%, #DBEAFE 100%); }
.ind-visual.aerospace { background:linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%); }
.ind-visual.industrial { background:linear-gradient(135deg, #F0FDF4 0%, #DCFCE7 100%); }
.ind-visual.research { background:linear-gradient(135deg, #FFF7ED 0%, #FED7AA 100%); }
.ind-icon { width:64px; height:64px; }
.ind-content { padding:24px; flex:1; }
.ind-content h3 { font-size:1rem; font-weight:600; color:var(--ink); margin-bottom:8px; }
.ind-content p { font-size:0.85rem; color:var(--muted); line-height:1.7; margin-bottom:14px; }
.ind-tags { display:flex; flex-wrap:wrap; gap:6px; }
.ind-tags span { font-size:0.7rem; font-weight:600; letter-spacing:0.04em; text-transform:uppercase; color:var(--blue); background:var(--blue-lt); padding:3px 10px; border-radius:100px; }

/* ===== PROCESS ===== */
.section.dark { background:#1E3A6E; }
.section.dark .section-tag { background:rgba(255,255,255,0.12); color:#93BBFD; }
.section.dark .section-header.light h2 { color:var(--white); }
.section.dark .section-header.light p { color:rgba(255,255,255,0.7); }
.process-steps { display:flex; align-items:stretch; gap:16px; flex-wrap:wrap; }
.step { flex:1; min-width:180px; padding:32px 24px; background:rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.15); border-radius:var(--r); position:relative; }
.step:hover { background:rgba(255,255,255,0.13); }
.step-num { font-size:2.4rem; font-weight:600; color:rgba(255,255,255,0.2); letter-spacing:-0.05em; margin-bottom:14px; }
.step h3 { font-size:0.92rem; font-weight:600; color:var(--white); text-transform:uppercase; letter-spacing:0.06em; margin-bottom:10px; }
.step p { font-size:0.83rem; color:rgba(255,255,255,0.75); line-height:1.7; }
.step-arrow { display:none; }

/* ===== CONTACT ===== */
.contact { background:var(--bg2); }
.contact-inner { display:grid; grid-template-columns:1fr 1.3fr; gap:72px; align-items:start; }
.contact-info .section-tag { display:block; margin-bottom:12px; }
.contact-info h2 { font-size:clamp(1.7rem,3vw,2.3rem); font-weight:600; color:var(--ink); margin-bottom:14px; letter-spacing:-0.02em; }
.contact-info > p { color:var(--muted); line-height:1.75; margin-bottom:32px; }
.contact-items { display:flex; flex-direction:column; gap:18px; margin-bottom:32px; }
.contact-item { display:flex; gap:14px; align-items:flex-start; }
.c-icon { width:40px; height:40px; background:var(--blue-lt); border-radius:var(--r); display:flex; align-items:center; justify-content:center; flex-shrink:0; color:var(--blue); }
.c-icon svg { width:18px; height:18px; }
.contact-item strong { display:block; font-size:0.83rem; font-weight:600; color:var(--ink); margin-bottom:2px; }
.contact-item div { font-size:0.875rem; color:var(--muted); }
.cert-badges { display:flex; gap:10px; flex-wrap:wrap; }
.cert-badge { padding:10px 14px; border:1.5px solid var(--border); border-radius:var(--r); font-size:0.68rem; font-weight:700; letter-spacing:0.08em; text-align:center; color:var(--blue); background:var(--bg); line-height:1.4; }

/* ===== FORM ===== */
.contact-form-wrap { background:var(--bg); border:1px solid var(--border); border-radius:12px; padding:36px; box-shadow:var(--shadow); }
.contact-form { display:flex; flex-direction:column; gap:18px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.form-group { display:flex; flex-direction:column; gap:6px; }
.form-group label { font-size:0.75rem; font-weight:600; letter-spacing:0.06em; text-transform:uppercase; color:var(--body); }
.form-group input,
.form-group select,
.form-group textarea { background:var(--bg); border:1.5px solid var(--border); border-radius:var(--r); padding:11px 14px; font-family:var(--font); font-size:0.9rem; color:var(--ink); transition:border-color var(--ease); outline:none; }
.form-group input::placeholder,
.form-group textarea::placeholder { color:var(--muted); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color:var(--blue); box-shadow:0 0 0 3px var(--blue-lt); }
.form-group textarea { resize:vertical; min-height:110px; }
.file-upload-label {
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:6px;
  border:1.5px dashed var(--border); border-radius:var(--r); padding:20px;
  cursor:pointer; transition:all var(--ease); text-align:center;
  background:var(--bg2);
}
.file-upload-label:hover { border-color:var(--blue); background:var(--blue-lt); }
.file-upload-label svg { width:24px; height:24px; color:var(--blue); stroke:var(--blue); }
.file-upload-label span { font-size:0.88rem; font-weight:500; color:var(--ink); }
.file-upload-label em { font-size:0.72rem; color:var(--muted); font-style:normal; }
.file-upload-label.has-file { border-color:var(--blue); background:var(--blue-lt); }
.file-upload-label.has-file span { color:var(--blue); }
.form-success { display:none; align-items:center; gap:12px; background:#F0FDF4; border:1px solid #86EFAC; border-radius:var(--r); padding:14px 18px; color:#166534; font-weight:500; font-size:0.9rem; }
.form-success svg { width:20px; height:20px; flex-shrink:0; stroke:#16a34a; }

/* ===== FOOTER ===== */
.footer { background:#1A2E52; border-top:1px solid rgba(255,255,255,0.08); }
.footer-inner { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; padding:64px 0 48px; }
.footer-brand .logo { margin-bottom:16px; }
.footer-brand .logo-main { color:var(--white); }
.footer-brand .logo-sub { color:#93BBFD; }
.footer-brand p { font-size:0.85rem; color:rgba(255,255,255,0.65); line-height:1.7; max-width:280px; }
.footer h4 { font-size:0.72rem; font-weight:600; letter-spacing:0.15em; text-transform:uppercase; color:rgba(255,255,255,0.5); margin-bottom:16px; }
.footer-links ul { display:flex; flex-direction:column; gap:10px; }
.footer-links a { font-size:0.875rem; color:rgba(255,255,255,0.75); transition:color var(--ease); }
.footer-links a:hover { color:var(--white); }
.footer-contact p { font-size:0.875rem; color:rgba(255,255,255,0.75); margin-bottom:8px; }
.footer-certs { display:flex; gap:8px; flex-wrap:wrap; margin-top:16px; }
.footer-certs span { font-size:0.65rem; font-weight:700; letter-spacing:0.1em; color:#93BBFD; border:1px solid rgba(147,187,253,0.35); padding:3px 8px; border-radius:4px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); padding:20px 0; }
.footer-bottom p { font-size:0.78rem; color:rgba(255,255,255,0.5); text-align:center; }

/* ===== RESPONSIVE ===== */
@media (max-width:1024px) {
  .cap-grid { grid-template-columns:1fr 1fr; }
  .mat-grid { grid-template-columns:repeat(3,1fr); }
  .footer-inner { grid-template-columns:1fr 1fr; }
  .contact-inner { gap:40px; }
}
@media (max-width:768px) {
  .nav-links { display:none; flex-direction:column; gap:0; position:absolute; top:100%; left:0; right:0; background:rgba(255,255,255,0.98); border-bottom:1px solid var(--border); padding:8px 0; box-shadow:0 8px 24px rgba(0,0,0,0.08); }
  .nav-links.open { display:flex; }
  .nav-links li { padding:4px 16px; }
  .nav-toggle { display:flex; }
  .hero-content { padding-top:100px; }
  .hero-visual { display:none; }
  .cap-grid { grid-template-columns:1fr; }
  .mat-grid { grid-template-columns:1fr 1fr; }
  .mat-tabs { flex-wrap:wrap; }
  .ind-grid { grid-template-columns:1fr; }
  .process-steps { flex-direction:column; }
  .contact-inner { grid-template-columns:1fr; gap:36px; }
  .form-row { grid-template-columns:1fr; }
  .footer-inner { grid-template-columns:1fr; gap:28px; }
  .hero-scroll-hint { display:none; }
  .hero-stats { gap:0; }
}
@media (max-width:480px) {
  .hero h1 { font-size:2.1rem; }
  .mat-grid { grid-template-columns:1fr; }
  .contact-form-wrap { padding:24px 18px; }
  .hero-btns { flex-direction:column; }
  .stat { padding:0 16px; }
}