/* ============================================================
   DNS Audit Tool — Stylesheet
   Design language: Network Operations Center (NOC) dashboard.
   Monospace headers/data (ties to dig/nslookup output), Inter for body.
   ============================================================ */

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

:root {
  --bg: #0A0E14;
  --bg-elevated: #10161F;
  --surface: #131A24;
  --surface-2: #1A2330;
  --border: #232D3D;
  --border-soft: #1B2431;
  --text: #E6EDF3;
  --text-muted: #8B98A5;
  --text-dim: #5C6B7A;

  --accent: #00D9C0;
  --accent-dim: #0A3D38;
  --accent-glow: rgba(0, 217, 192, 0.18);

  --amber: #FFB100;
  --amber-dim: #3A2C08;
  --red: #FF4757;
  --red-dim: #3A1116;
  --green: #2ED573;
  --green-dim: #0F2B1B;
  --blue: #4C9EFF;

  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 8px;
  --radius-lg: 14px;
  --shadow-panel: 0 4px 24px rgba(0,0,0,0.35);
}

[data-theme="light"] {
  --bg: #F5F7FA;
  --bg-elevated: #FFFFFF;
  --surface: #FFFFFF;
  --surface-2: #EEF1F5;
  --border: #DDE3EA;
  --border-soft: #E7EBF0;
  --text: #12181F;
  --text-muted: #566171;
  --text-dim: #8B96A3;

  --accent-dim: #D6F7F3;
  --amber-dim: #FFF3D6;
  --red-dim: #FFE1E4;
  --green-dim: #DBF6E6;
  --shadow-panel: 0 4px 24px rgba(20,30,45,0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
}

body {
  background-image:
    radial-gradient(circle at 15% 0%, var(--accent-glow), transparent 40%),
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
  background-attachment: fixed;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

::selection { background: var(--accent); color: #001b18; }

.navbar-custom {
  border-bottom: 1px solid var(--border);
  background: rgba(10,14,20,0.75);
  backdrop-filter: blur(10px);
  padding: 14px 0;
}
[data-theme="light"] .navbar-custom { background: rgba(255,255,255,0.85); }

.brand-mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.brand-mark span.tag { color: var(--accent); }

.theme-toggle-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all .2s ease;
}
.theme-toggle-btn:hover { border-color: var(--accent); color: var(--accent); }

.hero-section { padding: 56px 0 32px; }

.hero-title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.hero-title .accent-text { color: var(--accent); }

.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 640px;
  margin-bottom: 32px;
}

.terminal-window {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
  max-width: 780px;
}
.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.terminal-titlebar .tl-dot { width: 11px; height: 11px; border-radius: 50%; }
.tl-dot.red { background: #FF5F57; }
.tl-dot.yellow { background: #FEBC2E; }
.tl-dot.green { background: #28C840; }
.terminal-titlebar .tl-label {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.terminal-body { padding: 20px; }

.search-row { display: flex; gap: 10px; align-items: center; }
.prompt-symbol {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
  font-size: 1.05rem;
}

.domain-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  padding: 8px 0;
  caret-color: var(--accent);
}
.domain-input::placeholder { color: var(--text-dim); }

.btn-analyze {
  background: var(--accent);
  color: #00201C;
  border: none;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 0.92rem;
  transition: all .15s ease;
  white-space: nowrap;
}
.btn-analyze:hover { background: #24E6CF; transform: translateY(-1px); }
.btn-analyze:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.example-chips { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 14px;
  cursor: pointer;
  transition: all .15s ease;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }

.history-panel { max-width: 780px; margin-top: 10px; display: none; }
.history-panel.show { display: block; }
.history-item {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 6px 10px;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
}
.history-item:hover { background: var(--surface-2); color: var(--accent); }

#loading-section { display: none; padding: 60px 0; text-align: center; }
#loading-section.show { display: block; }

.scanner-box {
  width: 60px; height: 60px; margin: 0 auto 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-text { font-family: var(--font-mono); color: var(--text-muted); font-size: 0.95rem; }
.loading-text .cursor-blink { animation: blink 1s step-start infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }

#results-section { display: none; padding-bottom: 80px; }
#results-section.show { display: block; }

.score-hero {
  display: flex;
  align-items: center;
  gap: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-panel);
  flex-wrap: wrap;
}

.score-ring-wrap { position: relative; width: 130px; height: 130px; flex-shrink: 0; }
.score-ring-wrap svg { transform: rotate(-90deg); }
.score-ring-bg { fill: none; stroke: var(--surface-2); stroke-width: 10; }
.score-ring-fg { fill: none; stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 1s ease; }
.score-number {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-family: var(--font-mono);
}
.score-number .num { font-size: 1.9rem; font-weight: 700; }
.score-number .denom { font-size: 0.75rem; color: var(--text-dim); }

.score-details h2 { font-family: var(--font-mono); font-size: 1.3rem; margin-bottom: 4px; }
.score-details .grade-badge {
  display: inline-block; padding: 3px 12px; border-radius: 12px;
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600;
  margin-bottom: 10px;
}
.severity-pill-row { display: flex; gap: 10px; flex-wrap: wrap; }
.severity-pill {
  font-family: var(--font-mono); font-size: 0.78rem; padding: 4px 10px;
  border-radius: 6px; display: flex; align-items: center; gap: 6px;
}
.severity-pill .sev-dot { width: 8px; height: 8px; border-radius: 50%; }

.export-buttons { display: flex; gap: 8px; margin-left: auto; flex-wrap: wrap; }
.btn-export {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all .15s ease;
  display: flex; align-items: center; gap: 6px;
}
.btn-export:hover { border-color: var(--accent); color: var(--accent); }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}
.panel-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-2);
}
.panel-header .panel-icon { color: var(--accent); font-family: var(--font-mono); font-weight: 700; }
.panel-header h3 { font-family: var(--font-mono); font-size: 0.98rem; margin: 0; letter-spacing: -0.01em; }
.panel-body { padding: 20px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.data-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.83rem;
  vertical-align: top;
  word-break: break-word;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--surface-2); }

.empty-note { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.85rem; padding: 6px 0; }

.badge-status {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  padding: 3px 9px; border-radius: 5px; text-transform: uppercase; letter-spacing: 0.03em;
}
.badge-pass { background: var(--green-dim); color: var(--green); }
.badge-warn { background: var(--amber-dim); color: var(--amber); }
.badge-fail { background: var(--red-dim); color: var(--red); }
.badge-info { background: var(--accent-dim); color: var(--accent); }

.two-col-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 860px) { .two-col-grid { grid-template-columns: 1fr; } }

.kv-list { display: flex; flex-direction: column; gap: 10px; }
.kv-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--border-soft); font-size: 0.87rem; }
.kv-row:last-child { border-bottom: none; }
.kv-row .k { color: var(--text-muted); }
.kv-row .v { font-family: var(--font-mono); text-align: right; }

.problem-card {
  border: 1px solid var(--border);
  border-left: 4px solid var(--text-dim);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
  background: var(--surface-2);
}
.problem-card.sev-critical { border-left-color: var(--red); }
.problem-card.sev-high { border-left-color: #FF7A45; }
.problem-card.sev-medium { border-left-color: var(--amber); }
.problem-card.sev-low { border-left-color: var(--green); }

.problem-title-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.problem-title { font-weight: 600; font-size: 0.95rem; }
.problem-body p { margin: 4px 0; font-size: 0.85rem; color: var(--text-muted); }
.problem-body b { color: var(--text); }
.problem-cmd {
  font-family: var(--font-mono);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 6px 10px;
  font-size: 0.78rem;
  margin-top: 6px;
  color: var(--accent);
  overflow-x: auto;
  white-space: pre;
}

.explainer {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--text);
  margin-bottom: 14px;
}
.explainer b { color: var(--accent); }

.section-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 20px;
  position: sticky;
  top: 12px;
  z-index: 50;
  backdrop-filter: blur(10px);
}
.section-tab {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 14px;
  border-radius: 7px;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all .15s ease;
}
.section-tab:hover { color: var(--text); }
.section-tab.active { background: var(--accent); color: #00201C; font-weight: 700; }

.footer-note {
  text-align: center;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 30px 0;
}

.alert-error {
  background: var(--red-dim);
  border: 1px solid var(--red);
  color: var(--red);
  border-radius: 8px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  display: none;
}
.alert-error.show { display: block; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

@media (max-width: 600px) {
  .score-hero { flex-direction: column; align-items: flex-start; }
  .export-buttons { margin-left: 0; width: 100%; }
  .terminal-body { padding: 14px; }
  .search-row { flex-wrap: wrap; }
  .btn-analyze { width: 100%; }
}