/* ==============================
   Quick Lab Test — Main Stylesheet
   ============================== */

:root {
  --primary:     #2563EB;
  --primary-dark:#1F2937;
  --accent:      #2563EB;
  --green:       #059669;
  --light-bg:    #EFF6FF;
  --gray-50:     #F9FAFB;
  --gray-100:    #f1f5f9;
  --gray-200:    #e2e8f0;
  --gray-400:    #6B7280;
  --gray-600:    #6B7280;
  --gray-800:    #1F2937;
  --white:       #ffffff;
  --radius:      8px;
  --shadow:      0 4px 24px rgba(37,99,235,.10);
  --shadow-sm:   0 2px 8px rgba(0,0,0,.08);
  --transition:  .22s ease;
  --max-w:       1140px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--gray-800);
  line-height: 1.65;
  background: var(--white);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ── HEADER ── */
header {
  background: var(--white);
  border-bottom: 2px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--white);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text .brand { font-size: 1.15rem; font-weight: 800; color: var(--primary-dark); }
.logo-text .tagline { font-size: .7rem; color: var(--gray-600); font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }

nav { display: flex; align-items: center; gap: 4px; }

nav a {
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: .92rem;
  font-weight: 600;
  color: var(--gray-800);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

nav a:hover, nav a.active { background: var(--light-bg); color: var(--primary); text-decoration: none; }

.nav-cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  margin-left: 8px;
}
.nav-cta:hover { background: var(--primary-dark) !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--accent) 100%);
  color: var(--white);
  padding: 80px 20px 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 50px;
  padding: 5px 14px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 18px;
}
.hero h1 span { color: #93c5fd; }
.hero p {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  max-width: 640px;
  margin: 0 auto 34px;
  opacity: .9;
}
.btn-group { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--white); color: var(--primary); }
.btn-primary:hover { background: var(--light-bg); text-decoration: none; }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.7); color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.btn-blue { background: var(--primary); color: var(--white); }
.btn-blue:hover { background: var(--primary-dark); text-decoration: none; }
.btn-green { background: var(--green); color: var(--white); border-color: var(--green); }
.btn-green:hover { background: #047857; text-decoration: none; }

/* Trust bar */
.trust-bar {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 20px;
}
.trust-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  list-style: none;
  max-width: var(--max-w);
  margin: 0 auto;
}
.trust-list li {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: .87rem;
  font-weight: 600;
  color: var(--gray-600);
}
.trust-list .icon { font-size: 1.1rem; }

/* ── SECTIONS ── */
section { padding: 72px 20px; }
section:nth-child(even):not(.hero) { background: var(--gray-50); }

.section-label {
  display: inline-block;
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--primary);
  margin-bottom: 8px;
}
.section-title {
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 14px;
  line-height: 1.2;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 580px;
}
.section-header { margin-bottom: 48px; }
.section-header.centered { text-align: center; }
.section-header.centered .section-sub { margin: 0 auto; }

/* ── CARDS ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 30px 26px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 18px;
}
.card-icon.blue  { background: #dbeafe; }
.card-icon.green { background: #d1fae5; }
.card-icon.sky   { background: #e0f2fe; }
.card-icon.amber { background: #fef3c7; }

.card h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; color: var(--gray-800); }
.card p  { font-size: .93rem; color: var(--gray-600); line-height: 1.6; }

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 16px;
  font-size: .9rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}
.card-link:hover { text-decoration: underline; }

/* Service Feature Card */
.service-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.service-card-header {
  padding: 28px 28px 20px;
  color: var(--white);
}
.service-card-header.dot-bg    { background: linear-gradient(135deg, #1F2937, #2563EB); }
.service-card-header.nondot-bg { background: linear-gradient(135deg, #065f46, #059669); }
.service-card-header .service-badge {
  background: rgba(255,255,255,.2);
  border-radius: 50px;
  padding: 3px 12px;
  font-size: .75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  display: inline-block;
  margin-bottom: 12px;
}
.service-card-header h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 6px; }
.service-card-header p  { font-size: .92rem; opacity: .88; }
.service-card-body { padding: 24px 28px 28px; flex: 1; display: flex; flex-direction: column; }
.service-card-body ul { list-style: none; margin-bottom: 20px; flex: 1; }
.service-card-body ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: .93rem;
  color: var(--gray-600);
}
.service-card-body ul li:last-child { border-bottom: none; }
.service-card-body ul li .check { color: var(--green); font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }

/* ── PROCESS STEPS ── */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  counter-reset: step;
}
.step { text-align: center; }
.step-num {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 1.4rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.step h4 { font-size: 1rem; font-weight: 800; margin-bottom: 6px; }
.step p  { font-size: .9rem; color: var(--gray-600); }

/* ── FAQ ── */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-800);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--gray-50); }
.faq-question .faq-icon { font-size: 1.2rem; flex-shrink: 0; transition: transform .22s; }
.faq-item.open .faq-question .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer-inner {
  padding: 0 22px 20px;
  font-size: .96rem;
  color: var(--gray-600);
  line-height: 1.7;
  border-top: 1px solid var(--gray-100);
  padding-top: 14px;
}

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  text-align: center;
  padding: 64px 20px;
}
.cta-banner h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 900; margin-bottom: 12px; }
.cta-banner p  { font-size: 1.05rem; opacity: .88; max-width: 540px; margin: 0 auto 30px; }

/* ── PAGE HERO ── */
.page-hero {
  padding: 60px 20px 50px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  text-align: center;
}
.page-hero h1 { font-size: clamp(1.8rem, 4.5vw, 2.8rem); font-weight: 900; margin-bottom: 12px; }
.page-hero p  { font-size: 1.1rem; opacity: .88; max-width: 600px; margin: 0 auto; }
.page-hero.green-bg { background: linear-gradient(135deg, #065f46, #059669); }

/* Breadcrumb */
.breadcrumb {
  background: var(--gray-100);
  padding: 10px 20px;
  border-bottom: 1px solid var(--gray-200);
}
.breadcrumb-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  font-size: .85rem;
  color: var(--gray-600);
}
.breadcrumb-inner a { color: var(--primary); }

/* ── CONTACT ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}
.contact-info h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 18px; }
.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-method .cm-icon {
  width: 46px;
  height: 46px;
  background: var(--light-bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.contact-method strong { display: block; font-size: .88rem; text-transform: uppercase; letter-spacing: .05em; color: var(--gray-400); margin-bottom: 2px; }
.contact-method span  { font-size: 1rem; color: var(--gray-800); font-weight: 600; }

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: .88rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--gray-800);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: .96rem;
  color: var(--gray-800);
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── ABOUT ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-visual {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: 20px;
  padding: 48px 32px;
  color: var(--white);
  text-align: center;
}
.about-visual .big-icon { font-size: 5rem; margin-bottom: 16px; }
.about-visual h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 10px; }
.about-visual p  { opacity: .88; font-size: .97rem; }
.stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}
.stat-box {
  background: rgba(255,255,255,.15);
  border-radius: 10px;
  padding: 14px;
}
.stat-box .num { font-size: 1.8rem; font-weight: 900; }
.stat-box .lbl { font-size: .78rem; opacity: .8; }

.about-content h2 { margin-bottom: 14px; }
.about-content p  { color: var(--gray-600); margin-bottom: 16px; }
.value-list { list-style: none; margin-top: 20px; }
.value-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: .97rem;
}
.value-list li .vi { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }

/* ── SERVICE DETAIL PAGE ── */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}
.detail-main h2 { font-size: 1.5rem; font-weight: 800; margin: 36px 0 12px; color: var(--gray-800); }
.detail-main h2:first-child { margin-top: 0; }
.detail-main p  { color: var(--gray-600); margin-bottom: 14px; line-height: 1.75; }
.detail-main ul, .detail-main ol { padding-left: 22px; color: var(--gray-600); margin-bottom: 14px; }
.detail-main li { margin-bottom: 7px; line-height: 1.65; }

.sidebar-card {
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: 14px;
  padding: 26px 22px;
  margin-bottom: 20px;
}
.sidebar-card h4 { font-size: 1rem; font-weight: 800; margin-bottom: 14px; color: var(--gray-800); }
.sidebar-card .phone {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}
.sidebar-card p { font-size: .88rem; color: var(--gray-600); margin-bottom: 12px; }
.sidebar-card .btn { width: 100%; justify-content: center; }

.highlight-box {
  background: var(--light-bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: .97rem;
  color: var(--gray-700);
}

/* ── FOOTER ── */
footer {
  background: var(--gray-800);
  color: rgba(255,255,255,.75);
  padding: 56px 20px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  max-width: var(--max-w);
  margin: 0 auto 40px;
}
.footer-brand .logo-text .brand { color: var(--white); }
.footer-brand .logo-text .tagline { color: rgba(255,255,255,.5); }
.footer-brand p { font-size: .9rem; margin-top: 14px; line-height: 1.7; }
.footer-col h5 {
  font-size: .85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--white);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: rgba(255,255,255,.7); font-size: .9rem; text-decoration: none; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--white); }
.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  font-size: .9rem;
}
.footer-contact-item .fi { flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .84rem;
  color: rgba(255,255,255,.5);
}
.footer-bottom a { color: rgba(255,255,255,.6); text-decoration: none; }
.footer-bottom a:hover { color: var(--white); }

/* ── UTILITY ── */
.text-center { text-align: center; }
.mt-2  { margin-top: 8px; }
.mt-4  { margin-top: 16px; }
.mt-8  { margin-top: 32px; }
.mb-6  { margin-bottom: 24px; }
.hidden { display: none; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .about-grid,
  .contact-grid,
  .detail-layout { grid-template-columns: 1fr; }
  .about-visual   { order: -1; }
  .footer-grid    { grid-template-columns: 1fr 1fr; }
  .detail-layout .sidebar-card { max-width: 480px; }
}

@media (max-width: 640px) {
  nav   { display: none; flex-direction: column; position: absolute; top: 73px; left: 0; right: 0; background: var(--white); box-shadow: var(--shadow); padding: 16px; gap: 4px; border-top: 1px solid var(--gray-200); }
  nav.open { display: flex; }
  nav a  { display: block; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row    { grid-template-columns: 1fr; }
  .steps       { grid-template-columns: 1fr 1fr; }
  .stat-row    { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 400px) {
  .steps { grid-template-columns: 1fr; }
}