/* ============================================================
   CAL WORLD ENGINEERING PVT. LTD. — Main Stylesheet
   ISO 9001:2015 Certified Calibration Laboratory, Lahore PK
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@300;400;600;700;800&family=Source+Sans+3:wght@300;400;600&display=swap');

/* ── RESET & ROOT ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:       #0a3d6b;
  --primary-light: #1565a8;
  --accent:        #2ecc71;
  --accent-dark:   #27ae60;
  --bg:            #f8f9fb;
  --white:         #ffffff;
  --text:          #1c2235;
  --text-muted:    #5a6580;
  --border:        #dde3f0;
  --section-bg:    #f0f4fb;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Source Sans 3', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
h1, h2, h3, h4 { font-family: 'Barlow Condensed', sans-serif; font-weight: 700; }
img { max-width: 100%; display: block; }
a { text-decoration: none; }

/* ── NAVIGATION ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent;
  transition: background .35s, box-shadow .35s, padding .35s;
  padding: 18px 0;
}
nav.scrolled {
  background: var(--primary);
  box-shadow: 0 4px 24px rgba(10,61,107,.25);
  padding: 10px 0;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo-icon {
  width: 42px; height: 42px; background: var(--accent); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 18px; color: var(--primary);
}
.nav-logo-text {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 20px; color: #fff; line-height: 1.1;
}
.nav-logo-sub {
  font-size: 11px; font-weight: 400; color: var(--accent);
  letter-spacing: 1px; text-transform: uppercase;
}
.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links a {
  color: rgba(255,255,255,.85); font-size: 14px; font-weight: 600;
  letter-spacing: .4px; padding: 8px 12px; border-radius: 6px;
  transition: color .2s, background .2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent); background: rgba(46,204,113,.12); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px; background: none; border: none;
}
.hamburger span {
  width: 24px; height: 2px; background: white;
  border-radius: 2px; display: block; transition: all .3s;
}

/* Mobile Overlay */
.mobile-overlay {
  display: none; position: fixed; inset: 0;
  background: var(--primary); z-index: 999;
  flex-direction: column; align-items: center;
  justify-content: center; gap: 8px;
}
.mobile-overlay.open { display: flex; }
.mobile-overlay a {
  color: white; font-family: 'Barlow Condensed', sans-serif;
  font-size: 32px; font-weight: 700; padding: 12px 40px; transition: color .2s;
}
.mobile-overlay a:hover { color: var(--accent); }
.mobile-close {
  position: absolute; top: 24px; right: 28px; font-size: 36px;
  color: white; cursor: pointer; background: none; border: none; font-family: inherit;
}

/* ── HERO ── */
#home {
  min-height: 100vh; background: var(--primary);
  position: relative; overflow: hidden; display: flex; align-items: center;
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg,#071e3d 0%,#0a3d6b 50%,#0d5296 100%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .06;
  background-image:
    linear-gradient(var(--accent) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-circle {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(46,204,113,.12), transparent 70%);
}
.hero-c1 { width: 700px; height: 700px; right: -200px; top: -150px; }
.hero-c2 { width: 400px; height: 400px; left: -100px; bottom: -100px; }
.hero-inner {
  position: relative; z-index: 2; max-width: 1200px; margin: 0 auto;
  padding: 140px 28px 80px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(46,204,113,.15); border: 1px solid rgba(46,204,113,.3);
  color: var(--accent); font-size: 12px; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase;
  padding: 6px 16px; border-radius: 100px; margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(44px,6vw,80px); font-weight: 800; color: white;
  line-height: .95; margin-bottom: 24px; text-transform: uppercase; letter-spacing: -1px;
}
.hero-title span { color: var(--accent); display: block; }
.hero-desc {
  color: rgba(255,255,255,.7); font-size: 17px; line-height: 1.7;
  margin-bottom: 36px; max-width: 480px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent); color: var(--primary); font-weight: 700;
  padding: 14px 32px; border-radius: 8px; font-size: 15px;
  transition: background .2s, transform .2s; display: inline-block;
  font-family: 'Barlow Condensed', sans-serif; letter-spacing: .5px;
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-outline {
  border: 2px solid rgba(255,255,255,.4); color: white; font-weight: 600;
  padding: 13px 28px; border-radius: 8px; font-size: 15px;
  transition: border-color .2s, background .2s; display: inline-block;
  font-family: 'Barlow Condensed', sans-serif;
}
.btn-outline:hover { border-color: var(--accent); background: rgba(46,204,113,.1); }
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hero-stat {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px; padding: 20px; text-align: center; backdrop-filter: blur(10px);
}
.hero-stat-num {
  font-family: 'Barlow Condensed', sans-serif; font-size: 40px;
  font-weight: 800; color: var(--accent); line-height: 1;
}
.hero-stat-label { color: rgba(255,255,255,.6); font-size: 13px; margin-top: 4px; }
.iso-badge {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.15);
  border-radius: 12px; padding: 20px; display: flex; gap: 14px;
  align-items: center; grid-column: span 2; backdrop-filter: blur(10px);
}
.iso-icon { font-size: 32px; }
.iso-text { color: white; font-size: 13px; }
.iso-text strong {
  font-family: 'Barlow Condensed', sans-serif; font-size: 18px;
  display: block; color: var(--accent);
}
.scroll-ind {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center;
  gap: 8px; color: rgba(255,255,255,.4); font-size: 11px;
  letter-spacing: 2px; text-transform: uppercase;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ── SHARED SECTION STYLES ── */
section { padding: 100px 0; }
.section-inner { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.section-tag {
  display: inline-block; color: var(--accent-dark); font-size: 12px;
  font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 12px; background: rgba(46,204,113,.1);
  padding: 4px 14px; border-radius: 100px; border: 1px solid rgba(46,204,113,.25);
}
.section-title {
  font-size: clamp(32px,4vw,52px); color: var(--primary);
  line-height: 1.05; margin-bottom: 16px; text-transform: uppercase;
}
.section-title span { color: var(--accent-dark); }
.section-subtitle { color: var(--text-muted); font-size: 17px; max-width: 600px; line-height: 1.7; }
.divider { width: 60px; height: 4px; background: var(--accent); border-radius: 2px; margin: 20px 0; }

/* ── ABOUT ── */
#about { background: var(--white); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center; margin-top: 60px;
}
.about-text p { color: var(--text-muted); margin-bottom: 18px; font-size: 16px; line-height: 1.8; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px; }
.about-feat {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--section-bg); padding: 16px; border-radius: 10px;
  border-left: 3px solid var(--accent);
}
.about-feat-icon { font-size: 22px; }
.about-feat-text { font-size: 14px; font-weight: 600; color: var(--primary); }
.about-visual {
  background: var(--primary); border-radius: 16px; padding: 36px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.avc {
  background: rgba(255,255,255,.08); border-radius: 10px; padding: 20px;
  text-align: center; border: 1px solid rgba(255,255,255,.1);
}
.avc-num {
  font-family: 'Barlow Condensed', sans-serif; font-size: 42px;
  font-weight: 800; color: var(--accent); line-height: 1;
}
.avc-label { color: rgba(255,255,255,.65); font-size: 12px; margin-top: 4px; }
.avc-wide {
  grid-column: span 2; background: rgba(46,204,113,.12);
  border: 1px solid rgba(46,204,113,.25); border-radius: 10px; padding: 18px; text-align: center;
}
.avc-wide-t { font-family: 'Barlow Condensed', sans-serif; font-size: 20px; font-weight: 700; color: var(--accent); }
.avc-wide-s { color: rgba(255,255,255,.6); font-size: 13px; }

/* ── VISION / MISSION / VALUES ── */
#vision { background: var(--primary); padding: 80px 0; }
.vm-grid { display: grid; grid-template-columns: 1fr 1fr 3fr; gap: 24px; margin-top: 50px; }
.vm-card { border-radius: 14px; padding: 32px; border: 1px solid rgba(255,255,255,.12); }
.vm-card.vis, .vm-card.mis { background: rgba(255,255,255,.06); }
.vm-card.vals { background: rgba(46,204,113,.08); border-color: rgba(46,204,113,.2); }
.vm-icon { font-size: 36px; margin-bottom: 16px; }
.vm-title {
  font-family: 'Barlow Condensed', sans-serif; font-size: 24px; font-weight: 800;
  color: var(--accent); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1px;
}
.vm-text { color: rgba(255,255,255,.7); font-size: 15px; line-height: 1.7; }
.vals-list { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-top: 16px; }
.val-item { text-align: center; }
.val-name {
  font-family: 'Barlow Condensed', sans-serif; font-size: 22px; font-weight: 800;
  color: white; display: block; text-transform: uppercase;
}
.val-desc { color: rgba(255,255,255,.55); font-size: 13px; margin-top: 4px; }

/* ── SERVICES ── */
#services { background: var(--section-bg); }
.services-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr));
  gap: 20px; margin-top: 60px;
}
.svc-card {
  background: var(--white); border-radius: 14px; padding: 28px;
  border: 1px solid var(--border); cursor: default;
  opacity: 0; transform: translateY(30px);
  transition: opacity .5s, transform .5s, box-shadow .3s, border-color .3s;
}
.svc-card.visible { opacity: 1; transform: translateY(0); }
.svc-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(10,61,107,.12);
  border-color: var(--accent);
}
.svc-icon { font-size: 36px; margin-bottom: 16px; }
.svc-title {
  font-family: 'Barlow Condensed', sans-serif; font-size: 22px; font-weight: 700;
  color: var(--primary); margin-bottom: 10px; text-transform: uppercase;
}
.svc-desc { color: var(--text-muted); font-size: 14px; line-height: 1.7; }

/* ── RANGES ── */
#ranges { background: var(--white); }
.ranges-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr));
  gap: 16px; margin-top: 60px;
}
.rng-card {
  background: var(--section-bg); border-radius: 12px; padding: 24px;
  border: 1px solid var(--border); text-align: center;
  opacity: 0; transform: scale(.95);
  transition: opacity .4s, transform .4s, background .25s, border-color .25s;
}
.rng-card.visible { opacity: 1; transform: scale(1); }
.rng-card:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-4px); }
.rng-card:hover .rng-icon,
.rng-card:hover .rng-label { color: white; }
.rng-card:hover .rng-val { color: var(--accent); }
.rng-icon { font-size: 28px; margin-bottom: 10px; display: block; }
.rng-label {
  font-family: 'Barlow Condensed', sans-serif; font-size: 18px; font-weight: 700;
  color: var(--primary); margin-bottom: 6px; text-transform: uppercase;
}
.rng-val { font-size: 13px; color: var(--text-muted); font-weight: 600; }
.electro-banner {
  margin-top: 20px; background: var(--primary); border-radius: 12px;
  padding: 24px 32px; display: flex; gap: 20px; align-items: center; flex-wrap: wrap;
}
.etag {
  background: var(--accent); color: var(--primary); font-weight: 800;
  font-family: 'Barlow Condensed', sans-serif; font-size: 16px;
  padding: 6px 16px; border-radius: 6px; white-space: nowrap;
}
.etext { color: rgba(255,255,255,.8); font-size: 14px; flex: 1; }

/* ── QUALITY ── */
#quality { background: var(--section-bg); }
.quality-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin-top: 60px; }
.q-box-title {
  font-family: 'Barlow Condensed', sans-serif; font-size: 28px; font-weight: 800;
  color: var(--primary); text-transform: uppercase; margin-bottom: 20px;
}
.q-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.q-item {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--white); border-radius: 10px; padding: 18px; border: 1px solid var(--border);
}
.q-check { color: var(--accent-dark); font-size: 18px; font-weight: 900; margin-top: 1px; }
.q-item-text { color: var(--text); font-size: 14px; line-height: 1.6; }
.p-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.p-item {
  display: flex; gap: 14px; align-items: flex-start; padding: 18px;
  background: var(--primary); border-radius: 10px; border: 1px solid rgba(255,255,255,.08);
}
.p-icon { color: var(--accent); font-size: 16px; font-weight: 900; margin-top: 1px; }
.p-text { color: rgba(255,255,255,.8); font-size: 14px; line-height: 1.6; }

/* ── INDUSTRIES ── */
#industries { background: var(--white); padding: 80px 0; }
.ind-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.ind-tag {
  background: var(--section-bg); border: 1px solid var(--border);
  color: var(--primary); font-weight: 600; font-size: 14px;
  padding: 10px 20px; border-radius: 100px;
  transition: background .2s, border-color .2s, color .2s; cursor: default;
}
.ind-tag:hover { background: var(--primary); color: white; border-color: var(--primary); }

/* ── CLIENTS ── */
#clients { background: var(--primary); padding: 80px 0; }
.clients-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px,1fr));
  gap: 12px; margin-top: 50px;
}
.client-card {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px; padding: 18px 16px; text-align: center;
  color: rgba(255,255,255,.8); font-size: 14px; font-weight: 600;
  transition: background .2s, border-color .2s, color .2s;
}
.client-card:hover { background: rgba(46,204,113,.12); border-color: rgba(46,204,113,.3); color: var(--accent); }

/* ── CONTACT ── */
#contact { background: var(--section-bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 60px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.c-item { display: flex; gap: 16px; align-items: flex-start; }
.c-icon {
  width: 46px; height: 46px; background: var(--primary); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.c-label { font-size: 12px; font-weight: 700; color: var(--accent-dark); letter-spacing: 1px; text-transform: uppercase; }
.c-val { color: var(--text); font-size: 15px; margin-top: 2px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.fg { display: flex; flex-direction: column; gap: 6px; }
.fl { font-size: 13px; font-weight: 600; color: var(--text-muted); letter-spacing: .5px; }
.fi, .fta, .fsel {
  background: var(--white); border: 1.5px solid var(--border); border-radius: 8px;
  padding: 12px 16px; font-size: 15px; color: var(--text);
  font-family: inherit; transition: border-color .2s; outline: none; width: 100%;
}
.fi:focus, .fta:focus, .fsel:focus { border-color: var(--primary-light); }
.fta { min-height: 110px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fsub {
  background: var(--primary); color: white; border: none; border-radius: 8px;
  padding: 14px 32px; font-size: 16px; font-weight: 700; cursor: pointer;
  font-family: 'Barlow Condensed', sans-serif; letter-spacing: .5px;
  transition: background .2s, transform .2s; width: 100%;
}
.fsub:hover { background: var(--primary-light); transform: translateY(-2px); }

/* ── FOOTER ── */
footer { background: #06213d; padding: 50px 0 30px; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.fb-name { font-family: 'Barlow Condensed', sans-serif; font-size: 24px; font-weight: 800; color: white; }
.fb-tag { color: var(--accent); font-size: 13px; margin-top: 2px; }
.fb-desc { color: rgba(255,255,255,.5); font-size: 13px; margin-top: 14px; line-height: 1.7; }
.fc-title {
  font-family: 'Barlow Condensed', sans-serif; font-size: 16px; font-weight: 700;
  color: white; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 1px;
}
.fc-link {
  display: block; color: rgba(255,255,255,.55); font-size: 13px;
  margin-bottom: 8px; transition: color .2s; cursor: pointer;
}
.fc-link:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
}
.f-copy { color: rgba(255,255,255,.4); font-size: 13px; }
.f-cert { color: var(--accent); font-size: 13px; font-weight: 600; }

/* ── ANIMATE ON SCROLL ── */
.animate-fade {
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.animate-fade.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .hamburger  { display: flex; }
  .vm-grid    { grid-template-columns: 1fr; }
  .vals-list  { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .hero-inner     { grid-template-columns: 1fr; padding: 120px 20px 60px; gap: 40px; }
  .about-grid     { grid-template-columns: 1fr; gap: 40px; }
  .quality-grid   { grid-template-columns: 1fr; }
  .contact-grid   { grid-template-columns: 1fr; gap: 40px; }
  .footer-top     { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .form-row       { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
}