@charset "UTF-8";
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #e0f2fe;
  --secondary: #0d9488;
  --accent-red: #e11d48;
  --dark-bg: #0f172a;
  --dark-surface: #1e293b;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  --surface-light: #f8fafc;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  color: var(--text-main);
  background-color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation Header */
.glass-nav {
  background-color: #ffffff !important;
  border-bottom: 1px solid #e2e8f0;
  z-index: 100;
  transition: all 0.2s ease;
}

.glass-nav.scrolled {
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

.nav-link {
  white-space: nowrap !important;
  flex-shrink: 0;
  display: inline-block;
}

/* Swiss Tech Accents */
.badge-swiss {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #fff1f2;
  color: #be123c;
  border: 1px solid #fecdd3;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge-tech {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #f0fdfa;
  color: #0f766e;
  border: 1px solid #ccfbf1;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Gradients */
.hero-gradient {
  background: radial-gradient(circle at 85% 15%, rgba(14, 165, 233, 0.12) 0%, transparent 45%),
              radial-gradient(circle at 15% 85%, rgba(13, 148, 136, 0.08) 0%, transparent 40%),
              linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.dark-gradient {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

/* Custom Interactive Tabs */
.tab-btn {
  position: relative;
  transition: all 0.25s ease;
}

.tab-btn.active {
  color: #0284c7;
  font-weight: 700;
  border-color: #0284c7;
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: #0284c7;
  border-radius: 3px 3px 0 0;
}

/* Card Hover Effects */
.tech-card {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.08);
  border-color: #38bdf8;
}

/* Lightbox Modal */
.modal-overlay {
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
}

/* Accordion Transition */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, opacity 0.25s ease;
  opacity: 0;
}

.accordion-content.open {
  max-height: 1000px;
  opacity: 1;
}

/* Pulse Animation for Wave Signal */
@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.05); opacity: 0.4; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.pulse-energy {
  animation: pulse-ring 3s infinite ease-in-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Specs Table Styling */
.specs-table th {
  background-color: #f8fafc;
  color: #334155;
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid #e2e8f0;
}

.specs-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #f1f5f9;
  color: #475569;
}

.specs-table tr:hover td {
  background-color: #f0f9ff;
}