:root {
  --brand-blue: #2563EB;
  --brand-blue-hover: #1d4ed8;
  --zinc-50: #fafafa;
  --zinc-100: #f4f4f5;
  --zinc-200: #e4e4e7;
  --zinc-300: #d4d4d8;
  --zinc-400: #a1a1aa;
  --zinc-500: #71717a;
  --zinc-600: #52525b;
  --zinc-700: #3f3f46;
  --zinc-800: #27272a;
  --zinc-900: #18181b;
}

* {
  font-family: 'Inter', 'Noto Sans KR', system-ui, -apple-system, sans-serif;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--zinc-900);
  background-color: #fff;
}

::selection {
  background-color: #dbeafe;
  color: #1e3a8a;
}

/* Header & Navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--zinc-100);
  height: 72px;
}

.btn-brand {
  background-color: var(--brand-blue);
  color: #fff;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.2s ease;
  border: none;
}

.btn-brand:hover {
  background-color: var(--brand-blue-hover);
  color: #fff;
  box-shadow: 0 12px 24px -10px rgba(37, 99, 235, 0.6);
}

.btn-dark-pill {
  background-color: var(--zinc-900);
  color: #fff;
  border-radius: 9999px;
  font-weight: 600;
  border: none;
  transition: all 0.2s ease;
}

.btn-dark-pill:hover {
  background-color: #000;
  color: #fff;
}

.btn-outline-pill {
  background-color: #fff;
  border: 1px solid var(--zinc-200);
  color: var(--zinc-700);
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-outline-pill:hover {
  background-color: var(--zinc-50);
  border-color: var(--zinc-900);
  color: var(--zinc-900);
}

/* Cards & Badges */

.card-service {
  border-radius: 24px;
  border: 1px solid var(--zinc-200);
  background-color: #fff;
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-service.featured {
  border-color: rgba(37, 99, 235, 0.2);
  box-shadow: 0 20px 50px -20px rgba(37, 99, 235, 0.25);
}

.service-sub-card {
  border-radius: 20px;
  border: 1px solid var(--zinc-200);
  background-color: #fff;
  padding: 1.5rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.service-sub-card:hover {
  border-color: var(--zinc-300);
}

.service-sub-card:hover .icon-box {
  background-color: #eff6ff !important;
  border-color: #dbeafe !important;
  color: var(--brand-blue) !important;
}

/* Portfolio Cards */

.portfolio-card {
  border-radius: 24px;
  border: 1px solid var(--zinc-200);
  overflow: hidden;
  background-color: #fff;
  transition: all 0.3s ease;
}

.portfolio-card:hover {
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.portfolio-filter-btn {
  height: 38px;
  padding: 0 1.1rem;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--zinc-200);
  background: #fff;
  color: var(--zinc-600);
  transition: all 0.2s ease;
}

.portfolio-filter-btn:hover {
  border-color: var(--zinc-900);
  color: var(--zinc-900);
}

.portfolio-filter-btn.active {
  background: var(--zinc-900);
  color: #fff;
  border-color: var(--zinc-900);
}

/* Timeline Section (Dark) */

.section-process {
  background-color: var(--zinc-900);
  color: #fff;
  border-top-left-radius: 40px;
  border-top-right-radius: 40px;
}

.process-card {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 1.5rem;
  transition: background-color 0.2s ease;
}

.process-card:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

/* Custom Checkbox Pill Buttons */

.service-check-item input[type="checkbox"] {
  display: none;
}

.service-check-item label {
  height: 44px;
  border-radius: 9999px;
  border: 1px solid var(--zinc-200);
  padding: 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 13px;
  cursor: pointer;
  background: #fff;
  transition: all 0.15s ease;
  user-select: none;
  margin-bottom: 0;
}

.service-check-item label:hover {
  border-color: var(--zinc-900);
}

.service-check-item input[type="checkbox"]:checked + label {
  background-color: var(--zinc-900);
  color: #fff;
  border-color: var(--zinc-900);
}

.service-check-item .indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--zinc-300);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.service-check-item input[type="checkbox"]:checked + label .indicator {
  border-color: #fff;
  background: #fff;
  color: var(--zinc-900);
}

/* Pulse animation */

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: .4;
  }
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background-color: var(--brand-blue);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite ease-in-out;
}

#offc_menu .nav-link {
  color: black;
}

.custom-menu .nav-link {
  font-weight: 600;
  color: #333;
  padding: 12px 20px;
  border-left: 3px solid transparent;
  transition: all 0.3s ease;
}

.custom-menu .nav-link:hover {
  color: #0d6efd;
  background-color: #f8f9fa;
  border-left: 3px solid #0d6efd;
}

.custom-menu .nav-link.active {
  color: #0d6efd;
  background-color: #e9ecef;
  border-left: 3px solid #0d6efd;
}

.cursor-pointer {
  cursor: pointer;
}

.file-upload-box {
    border-color: #cbd5e1 !important;
    transition: all 0.2s ease-in-out;
}
.file-upload-box.is-dragover {
    border-color: #0d6efd !important;
    background-color: rgba(13, 110, 253, 0.05) !important;
}
.file-item {
    transition: background-color 0.15s ease;
}
.file-item:hover {
    background-color: #f8f9fa;
}


.fs-7 {
  font-size: 0.875rem !important;
}

a { 
  text-decoration: none;
  color: inherit;
}

.navbar-nav .nav-link.active, .navbar-nav .nav-link.show {
  color: var(--bs-navbar-active-color);
  font-weight: bold;
}

.form-control::placeholder {
  color: #b1b1b1 !important;
  opacity: 1 !important;
}


.fullscreen {
  background-color: white;
}

.accordion-button:not(.collapsed) {
    /* background-color:var(--bs-accordion-active-bg); */
    background-color: white;
    box-shadow: 0 0 0 white;
}