:root {
  --bg-primary: #030712;
  --bg-secondary: #0b0f19;
  --bg-tertiary: #111827;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-cyan: #00f0ff;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #1d4ed8;
  --success: #10b981;
  --warning: #f59e0b;
  --border-color: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(11, 15, 25, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
  --font-sans: 'Inter', 'IBM Plex Sans', system-ui, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.007) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.007) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

h1, h2, h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

p {
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

pre, code, time {
  font-family: var(--font-mono);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

.app-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-link img {
  height: 38px;
  width: 38px;
  border-radius: 8px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-align: left;
}

.logo-name {
  font-weight: 600;
  font-size: 1.15rem;
  color: #fff;
}

.logo-product {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-main {
  flex: 1;
  padding: 3rem 1.5rem 4rem;
}

.page-hero {
  text-align: left;
  margin-bottom: 1.5rem;
}

.badge-security {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 240, 255, 0.07);
  border: 1px solid rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  padding: 0.35rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-security-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 240, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}

.page-hero h1 {
  font-size: 2.25rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.page-hero .meta {
  color: var(--text-secondary);
}

.filter-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 1.75rem;
}

.filter-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid rgba(0, 240, 255, 0.2);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}

.filter-nav a:hover,
.filter-nav a.active {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
  background: rgba(0, 240, 255, 0.03);
}

.inquiry-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  margin: 1rem 0;
}

.inquiry-card.status-completed {
  opacity: 0.88;
}

.inquiry-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.inquiry-head strong {
  color: #fff;
  font-size: 1.05rem;
}

.inquiry-head .when {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.status-badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-cyan);
  vertical-align: middle;
}

.status-completed .status-badge {
  background: rgba(16, 185, 129, 0.18);
  color: var(--success);
}

.inquiry-card a {
  color: var(--accent-cyan);
}

.inquiry-card pre {
  white-space: pre-wrap;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1rem;
  border-radius: 8px;
  color: var(--text-primary);
  margin: 0.75rem 0 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));
  color: #fff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #f87171;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin: 0.25rem 0 1.25rem;
}

.comments h2 {
  font-size: 1rem;
  color: #fff;
  margin: 0 0 0.75rem;
}

.comments ul {
  list-style: none;
}

.comments li {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
}

.comments li.empty {
  color: var(--text-muted);
}

.comments time {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.comments p {
  margin: 0.35rem 0 0;
  color: var(--text-primary);
}

.form-group {
  margin-top: 0.75rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1rem;
  border-radius: 8px;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

textarea.form-control {
  margin-bottom: 0.75rem;
  resize: vertical;
}

.login-wrap {
  max-width: 440px;
  margin: 2rem auto;
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
}

.login-card h1 {
  font-size: 1.75rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.login-card p {
  margin-bottom: 1.5rem;
}

.login-card .btn {
  width: 100%;
  margin-top: 0.5rem;
}

footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  padding: 1.5rem 0;
  margin-top: auto;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.footer-bottom p {
  color: var(--text-muted);
}

.empty-state {
  background: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}