@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================================
   LUENIC GROUP A.Ş. — Kurumsal Web Sitesi
   ============================================================ */

:root {
  --orange: #E8650A;
  --orange-dark: #C55508;
  --orange-light: #FFF3EC;
  --navy: #0D2545;
  --navy-mid: #1E4080;
  --navy-light: #2C5282;
  --blue-50: #F0F6FF;
  --blue-100: #EBF3FF;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --text: #1E293B;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 16px rgba(10,31,61,0.10);
  --shadow-lg: 0 8px 32px rgba(10,31,61,0.14);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.2s ease;
  --max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; color-scheme: light; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; color: var(--navy); }
h1 { font-size: clamp(1.875rem, 4vw, 2.875rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h4 { font-size: 1.0625rem; }
p { color: var(--gray-600); }

/* === LAYOUT === */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-header { text-align: center; margin-bottom: 52px; }
.section-header p { font-size: 1.0625rem; max-width: 580px; margin: 14px auto 0; line-height: 1.7; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.9375rem; cursor: pointer;
  transition: var(--transition); border: 2px solid transparent;
  text-decoration: none; white-space: nowrap; line-height: 1;
}
.btn-primary { background: var(--orange); color: var(--white); border-color: var(--orange); }
.btn-primary:hover { background: var(--orange-dark); border-color: var(--orange-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,101,10,0.3); }
.btn-secondary { background: var(--white); color: var(--navy); border-color: var(--navy); }
.btn-secondary:hover { background: var(--navy); color: var(--white); transform: translateY(-1px); }
.btn-outline-white { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn-outline-white:hover { background: rgba(255,255,255,0.15); border-color: var(--white); }
.btn-whatsapp { background: #25D366; color: var(--white); border-color: #25D366; padding: 16px 32px; font-size: 1rem; border-radius: var(--radius); }
.btn-whatsapp:hover { background: #1fba59; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37,211,102,0.35); }
.btn-lg { padding: 16px 32px; font-size: 1rem; }

/* === NAVBAR === */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white); border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.navbar-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.navbar-logo {
  background: var(--navy); color: var(--white);
  font-weight: 800; font-size: 1.2rem;
  padding: 8px 16px; border-radius: var(--radius-sm); letter-spacing: -0.3px;
}
.navbar-logo span { color: var(--orange); }
.navbar-tagline { font-size: 0.7rem; color: var(--gray-500); font-weight: 500; letter-spacing: 0.8px; text-transform: uppercase; line-height: 1.2; }
.navbar-nav { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 8px 14px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.875rem; color: var(--gray-700); transition: var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--navy); background: var(--blue-50); }
.nav-cta {
  background: var(--orange); color: var(--white) !important;
  padding: 9px 18px; border-radius: var(--radius-sm); font-weight: 600;
  display: flex; align-items: center; gap: 6px; transition: var(--transition); font-size: 0.875rem;
}
.nav-cta:hover { background: var(--orange-dark) !important; transform: translateY(-1px); }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: var(--transition); }

/* === HERO === */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  padding: 80px 0 100px; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -40%; right: -15%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(232,101,10,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 700px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(232,101,10,0.15); border: 1px solid rgba(232,101,10,0.3);
  color: #FFAA70; padding: 6px 14px; border-radius: 100px;
  font-size: 0.8125rem; font-weight: 500; margin-bottom: 24px;
}
.hero h1 { color: var(--white); margin-bottom: 18px; }
.hero h1 span { color: var(--orange); }
.hero .lead { font-size: 1.0625rem; color: rgba(255,255,255,0.72); margin-bottom: 36px; line-height: 1.75; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 0; }
.hero-stats {
  display: flex; gap: 48px; margin-top: 60px;
  padding-top: 40px; border-top: 1px solid rgba(255,255,255,0.1); flex-wrap: wrap;
}
.hero-stat-value { font-size: 2rem; font-weight: 800; color: var(--white); display: block; line-height: 1; }
.hero-stat-value span { color: var(--orange); }
.hero-stat-label { font-size: 0.8125rem; color: rgba(255,255,255,0.55); margin-top: 5px; }
.hero-sub { padding: 56px 0 68px; }
.hero-sub h1 { font-size: clamp(1.6rem, 3.5vw, 2.375rem); }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.8125rem; color: rgba(255,255,255,0.55); margin-bottom: 18px; }
.breadcrumb a { color: rgba(255,255,255,0.55); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb-sep { opacity: 0.4; }

/* === SEGMENT CARDS === */
.segment-card {
  border-radius: var(--radius-lg); padding: 40px;
  position: relative; overflow: hidden;
  text-decoration: none; display: block; transition: var(--transition);
}
.segment-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.segment-card-onco { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%); }
.segment-card-wellness { background: linear-gradient(135deg, #1a4731 0%, #2d6a4f 100%); }
.segment-card-badge {
  display: inline-block; background: rgba(255,255,255,0.15);
  color: var(--white); padding: 4px 12px; border-radius: 100px;
  font-size: 0.75rem; font-weight: 600; margin-bottom: 18px; letter-spacing: 0.5px;
}
.segment-card h2 { color: var(--white); font-size: 1.625rem; margin-bottom: 12px; }
.segment-card p { color: rgba(255,255,255,0.72); font-size: 0.9375rem; line-height: 1.7; }
.segment-card-features { margin-top: 24px; display: flex; flex-direction: column; gap: 10px; }
.segment-feature {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,0.88); font-size: 0.875rem;
}
.segment-feature-dot {
  width: 20px; height: 20px; background: rgba(255,255,255,0.15);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; flex-shrink: 0; color: var(--white);
}
.segment-card-arrow { position: absolute; bottom: 28px; right: 32px; font-size: 1.5rem; opacity: 0.4; transition: var(--transition); color: var(--white); }
.segment-card:hover .segment-card-arrow { opacity: 1; transform: translateX(4px); }

/* === TEST CARDS === */
.test-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; background: var(--white); transition: var(--transition); }
.test-card:hover { border-color: var(--orange); box-shadow: var(--shadow); }
.test-badge {
  display: inline-block; padding: 5px 12px; border-radius: var(--radius-sm);
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.5px;
  margin-bottom: 14px; color: var(--white);
}
.badge-navy { background: var(--navy); }
.badge-orange { background: var(--orange); }
.badge-teal { background: #0d9488; }
.badge-green { background: #059669; }
.badge-purple { background: #7c3aed; }
.test-card h3 { font-size: 1.0625rem; color: var(--navy); margin-bottom: 6px; }
.test-card .test-meta { font-size: 0.8125rem; color: var(--gray-500); margin-bottom: 10px; font-style: italic; }
.test-card p { font-size: 0.875rem; color: var(--gray-600); line-height: 1.65; }
.test-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tag { background: var(--gray-100); color: var(--gray-600); padding: 3px 10px; border-radius: 100px; font-size: 0.75rem; font-weight: 500; }
.tag-orange { background: var(--orange-light); color: var(--orange-dark); }
.tag-blue { background: var(--blue-100); color: var(--navy-mid); }

/* === TABLES === */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.data-table { width: 100%; border-collapse: collapse; background: var(--white); font-size: 0.875rem; }
.data-table thead { background: var(--navy); color: var(--white); }
.data-table thead th { padding: 14px 16px; text-align: left; font-weight: 600; font-size: 0.8125rem; letter-spacing: 0.3px; white-space: nowrap; }
.data-table tbody tr { border-bottom: 1px solid var(--border); transition: background 0.15s; }
.data-table tbody tr:hover { background: var(--gray-50); }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table td { padding: 12px 16px; vertical-align: middle; line-height: 1.45; }
.data-table td:first-child { font-weight: 600; color: var(--navy); }
.check-yes { color: #059669; font-weight: 700; }
.check-cond { color: #d97706; font-weight: 600; font-size: 0.8rem; }
.check-no { color: var(--gray-400); }
.biomarker {
  font-family: 'Courier New', monospace; font-weight: 700;
  color: var(--orange); font-size: 0.8125rem;
  background: var(--orange-light); padding: 2px 7px;
  border-radius: 4px; display: inline-block;
}
.drug-name { font-style: italic; font-size: 0.8rem; color: var(--gray-600); }

/* === ACCORDION === */
.accordion { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-trigger {
  width: 100%; display: flex; align-items: center;
  justify-content: space-between; padding: 18px 24px;
  background: var(--white); border: none; cursor: pointer;
  text-align: left; transition: var(--transition); gap: 16px;
}
.accordion-trigger:hover { background: var(--gray-50); }
.accordion-trigger.active { background: var(--navy); }
.accordion-trigger.active h4 { color: var(--white); }
.acc-num {
  width: 30px; height: 30px; background: var(--orange);
  color: var(--white); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.8125rem; flex-shrink: 0;
}
.acc-title { flex: 1; }
.acc-title h4 { margin-bottom: 1px; font-size: 0.9375rem; }
.acc-sub { font-size: 0.775rem; color: var(--gray-500); }
.accordion-trigger.active .acc-sub { color: rgba(255,255,255,0.55); }
.acc-icon { font-size: 1rem; flex-shrink: 0; transition: transform 0.2s ease; color: var(--gray-400); }
.accordion-trigger.active .acc-icon { transform: rotate(180deg); color: rgba(255,255,255,0.6); }
.accordion-content { display: none; padding: 24px; background: var(--gray-50); border-top: 1px solid var(--border); }
.accordion-content.active { display: block; }

/* === CLINICAL DECISION BOX === */
.clinical-box {
  background: var(--navy); border-radius: var(--radius);
  padding: 20px 24px; margin-top: 20px;
}
.clinical-box-title { color: var(--orange); font-size: 0.75rem; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 14px; }
.clinical-box ul { display: flex; flex-direction: column; gap: 9px; }
.clinical-box li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 0.875rem; color: rgba(255,255,255,0.82); line-height: 1.55;
}
.clinical-box li::before { content: '►'; color: var(--orange); flex-shrink: 0; font-size: 0.7rem; margin-top: 4px; }

/* === STAT CARDS === */
.stat-card { text-align: center; padding: 32px 20px; background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); }
.stat-value { font-size: 2.375rem; font-weight: 800; color: var(--navy); display: block; line-height: 1; margin-bottom: 8px; }
.stat-value .hl { color: var(--orange); }
.stat-label { font-size: 0.875rem; color: var(--gray-500); font-weight: 500; }

/* === WHY SECTION === */
.why-item { display: flex; gap: 16px; align-items: flex-start; }
.why-icon { width: 44px; height: 44px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.375rem; flex-shrink: 0; }
.icon-bg-orange { background: var(--orange-light); }
.icon-bg-blue { background: var(--blue-100); }
.why-item h4 { margin-bottom: 6px; }
.why-item p { font-size: 0.875rem; line-height: 1.65; }

/* === ABOUT PAGE === */
.about-intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.tech-card { background: var(--navy); border-radius: var(--radius-lg); padding: 40px; }
.tech-card h3 { color: var(--white); margin-bottom: 14px; }
.tech-card p { color: rgba(255,255,255,0.72); font-size: 0.9375rem; line-height: 1.75; }
.tech-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 28px; }
.tech-stat { background: rgba(255,255,255,0.08); border-radius: var(--radius-sm); padding: 18px 16px; }
.tech-stat-num { font-size: 1.625rem; font-weight: 800; color: var(--orange); display: block; line-height: 1; margin-bottom: 4px; }
.tech-stat-desc { font-size: 0.775rem; color: rgba(255,255,255,0.55); line-height: 1.4; }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card { padding: 28px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); }
.value-icon { font-size: 2rem; margin-bottom: 14px; }
.value-card h4 { margin-bottom: 8px; }
.value-card p { font-size: 0.875rem; line-height: 1.65; }

/* === CTA === */
.cta-section { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%); padding: 80px 0; text-align: center; }
.cta-section h2 { color: var(--white); margin-bottom: 14px; }
.cta-section p { color: rgba(255,255,255,0.68); font-size: 1.0625rem; margin-bottom: 36px; max-width: 480px; margin-left: auto; margin-right: auto; line-height: 1.7; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* === WHATSAPP FLOAT === */
.wa-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  background: #25D366; color: var(--white);
  width: 60px; height: 60px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.75rem; text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: var(--transition);
  animation: wa-pulse 3s infinite;
}
.wa-float:hover { transform: scale(1.1); background: #1fba59; }
@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 40px rgba(37,211,102,0.6), 0 0 0 8px rgba(37,211,102,0.08); }
}

/* === FOOTER === */
footer { background: var(--navy); color: rgba(255,255,255,0.65); padding: 60px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.8125rem; line-height: 1.75; margin-bottom: 20px; margin-top: 14px; }
.footer-logo { background: rgba(255,255,255,0.1); color: var(--white); font-weight: 800; font-size: 1.1rem; padding: 8px 14px; border-radius: var(--radius-sm); display: inline-block; letter-spacing: -0.3px; }
.footer-logo span { color: var(--orange); }
.footer-col h5 { color: var(--white); font-size: 0.75rem; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-link { color: rgba(255,255,255,0.6); font-size: 0.8125rem; transition: color 0.2s; }
.footer-link:hover { color: var(--white); }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; font-size: 0.8125rem; margin-bottom: 12px; line-height: 1.5; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; font-size: 0.7875rem; }
.footer-legal { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-legal a { color: rgba(255,255,255,0.45); transition: color 0.2s; }
.footer-legal a:hover { color: var(--white); }

/* === UTILITIES === */
.bg-light { background: var(--gray-50); }
.bg-navy { background: var(--navy); }
.text-center { text-align: center; }
.text-orange { color: var(--orange); }
.divider { height: 1px; background: var(--border); margin: 28px 0; }
.info-box { background: var(--blue-100); border-left: 4px solid var(--navy-mid); padding: 18px 22px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.info-box p { color: var(--gray-700); font-size: 0.875rem; line-height: 1.65; }
.warning-note { background: #FFFBEB; border: 1px solid #FDE68A; border-radius: var(--radius-sm); padding: 14px 18px; font-size: 0.8125rem; color: #92400E; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-0 { margin-bottom: 0 !important; }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .values-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 52px 0; }
  .hero { padding: 52px 0 68px; }
  .navbar-nav { display: none; }
  .navbar-nav.mobile-open {
    display: flex; flex-direction: column;
    position: fixed; top: 72px; left: 0; right: 0;
    background: var(--white); padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg); gap: 4px; z-index: 999;
  }
  .mobile-menu-btn { display: flex; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .values-grid { grid-template-columns: 1fr; }
  .tech-stats-grid { grid-template-columns: 1fr 1fr; }
  .cta-actions { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .data-table { font-size: 0.8rem; }
  .data-table td, .data-table th { padding: 10px 12px; }
  .segment-card { padding: 28px 22px; }
  .section-header { margin-bottom: 36px; }
}