:root {
  --bg: #0b1220;
  --bg-soft: #101a2d;
  --card: #111c31;
  --card-2: #15223a;
  --border: rgba(255, 255, 255, 0.08);
  --text: #edf3ff;
  --muted: #9fb0cd;
  --primary: #5eead4;
  --primary-deep: #14b8a6;
  --accent: #7dd3fc;
  --warn: #fbbf24;
  --danger: #fb7185;
  --ok: #34d399;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.12), transparent 32%),
    radial-gradient(circle at top left, rgba(94, 234, 212, 0.08), transparent 28%),
    linear-gradient(180deg, #08111d 0%, #0b1220 48%, #0e1727 100%);
}
.container { width: min(1120px, calc(100% - 28px)); margin: 0 auto; }
.site-header { padding: 42px 0 20px; }
.brand-block { max-width: 820px; }
.header-controls { display: flex; gap: 12px; align-items: center; }
.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.brand-block h1, .section-head h2 { margin: 0; }
.brand-block h1 {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  letter-spacing: -0.03em;
  line-height: 0.98;
}
.brand-block p, .section-copy, .hero-summary, .domain-result, .packet-log { color: var(--muted); line-height: 1.65; }
.site-header .container { display: flex; justify-content: space-between; gap: 20px; align-items: end; }
.main-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 16px 0 34px;
}
.card {
  background: linear-gradient(180deg, rgba(21, 34, 58, 0.96), rgba(14, 23, 39, 0.96));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.hero-card, .span-2, .span-full { grid-column: span 2; }
.span-full { grid-column: span 3; }
.section-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 16px; }
.section-head-wrap { flex-wrap: wrap; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; }
.button-row-stack { flex-direction: column; align-items: stretch; }
.button {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 13px 16px;
  cursor: pointer;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.button:hover { transform: translateY(-1px); border-color: rgba(255,255,255,0.14); }
.button:disabled { opacity: 0.5; cursor: default; transform: none; }
.button-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #062032;
  border-color: transparent;
  font-weight: 800;
}
.button-secondary { background: rgba(255,255,255,0.03); }
.score-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.score-panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px;
}
.score-panel-highlight { background: linear-gradient(180deg, rgba(94, 234, 212, 0.10), rgba(125, 211, 252, 0.08)); }
.score-label { color: var(--muted); font-size: 0.95rem; }
.score-value { font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 800; margin: 10px 0 8px; }
.score-status { color: var(--text); font-weight: 600; }
.stats-grid, .packet-live-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.stat-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
}
.stat-box span { display: block; color: var(--muted); font-size: 0.9rem; }
.stat-box strong {
  display: block;
  margin-top: 8px;
  font-size: 1.1rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.stat-box-wide {
  grid-column: span 2;
  min-height: 118px;
}
.stat-box-ipv6 strong {
  font-size: 1.2rem;
}
.test-list { display: grid; gap: 10px; }
.test-item {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
}
.test-item h3 { margin: 0 0 6px; font-size: 1rem; }
.test-item p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.5; }
.badge {
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  white-space: nowrap;
}
.badge.pending { background: rgba(255,255,255,0.08); }
.badge.ok { background: rgba(52, 211, 153, 0.16); color: #9df1cb; }
.badge.warn { background: rgba(251, 191, 36, 0.16); color: #ffdc82; }
.badge.fail { background: rgba(251, 113, 133, 0.14); color: #ffadbb; }
.inline-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}
.inline-controls label, .domain-field {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}
input {
  min-width: 120px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
}
.domain-field input { min-width: 240px; }
.packet-progress-container {
  display: grid;
  grid-template-columns: repeat(3, minmax(100px, 1fr));
  gap: 24px;
  margin-top: 24px;
  margin-bottom: 24px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.08), rgba(125, 211, 252, 0.04));
  border: 1px solid rgba(125, 211, 252, 0.2);
  border-radius: 20px;
}

.progress-ring-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.progress-ring-group:nth-child(2) {
  display: flex;
}

.progress-ring-svg {
  width: 160px;
  height: 160px;
  filter: drop-shadow(0 4px 12px rgba(125, 211, 252, 0.2));
}

.progress-ring-group:nth-child(2) .progress-ring-svg {
  display: none;
}

.progress-ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 8;
}

.progress-ring {
  fill: none;
  stroke: #7dd3fc;
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 314.159;
  stroke-dashoffset: 314.159;
  transform: rotate(-90deg);
  transform-origin: 60px 60px;
  transition: stroke-dashoffset 0.3s ease, stroke 0.3s ease;
}

.loss-indicator {
  fill: none;
  stroke: #ffffff;
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 314.159;
  stroke-dashoffset: 314.159;
  transform: rotate(-90deg);
  transform-origin: 60px 60px;
  transition: stroke-dashoffset 0.3s ease;
  opacity: 0.8;
}

.ring-label {
  font-weight: 600;
  font-size: 1rem;
  color: #7dd3fc;
  text-transform: capitalize;
}

.progress-ring-group:nth-child(2) {
  background: rgba(125, 211, 252, 0.1);
  border: 1px solid rgba(125, 211, 252, 0.25);
  border-radius: 16px;
  padding: 20px 16px;
  gap: 8px;
  justify-content: center;
}

.ring-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
}

.progress-ring-group:nth-child(2) .ring-value {
  font-size: 2.5rem;
  color: #7dd3fc;
}

.ring-total {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: -6px;
}

.progress-ring-group:nth-child(2) .ring-total {
  display: none;
}

.ring-percentage {
  font-weight: 700;
  font-size: 1.1rem;
  color: #7dd3fc;
}

.packet-log, .domain-result {
  margin-top: 14px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  white-space: pre-line;
}

.packet-counter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  gap: 16px;
  margin-bottom: 14px;
}

.manual-ping-counter-grid {
  margin-top: 14px;
}

.packet-counter-box {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: grid;
  gap: 8px;
}

.packet-counter-box span {
  color: var(--muted);
  font-size: 0.92rem;
}

.packet-counter-box strong {
  font-size: 2rem;
  line-height: 1;
  color: #7dd3fc;
}

.packet-counter-box-loss strong {
  color: #fda4af;
}
.packet-log-live {
  min-height: 320px;
  max-height: 360px;
  overflow-y: auto;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(94, 234, 212, 0.06), rgba(125, 211, 252, 0.03)),
    rgba(255,255,255,0.03);
  border-color: rgba(125, 211, 252, 0.16);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.93rem;
  line-height: 1.55;
}
.packet-log-live::-webkit-scrollbar {
  width: 10px;
}
.packet-log-live::-webkit-scrollbar-thumb {
  background: rgba(125, 211, 252, 0.35);
  border-radius: 999px;
}
.packet-log-live::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.04);
  border-radius: 999px;
}
.domain-result {
  min-height: 320px;
}
.speedtest-card {
  overflow: hidden;
}

.speedtest-card .section-head {
  align-items: center;
  flex-wrap: wrap;
}

.speed-status-pill {
  border: 1px solid rgba(125, 211, 252, 0.22);
  border-radius: 999px;
  color: #b8ecff;
  background: rgba(125, 211, 252, 0.08);
  padding: 8px 11px;
  font-size: 0.78rem;
  font-weight: 800;
  white-space: nowrap;
}

.speed-status-pill.is-running {
  color: #a7f3d0;
  border-color: rgba(52, 211, 153, 0.28);
  background: rgba(52, 211, 153, 0.12);
}

.speed-status-pill.is-finished {
  color: #bfdbfe;
  border-color: rgba(96, 165, 250, 0.28);
  background: rgba(96, 165, 250, 0.12);
}

.speed-status-pill.is-error {
  color: #fecdd3;
  border-color: rgba(251, 113, 133, 0.28);
  background: rgba(251, 113, 133, 0.12);
}

.speed-dashboard {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 16px;
}

.speed-primary,
.speed-metric,
.speed-status-log {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.speed-primary {
  padding: 16px;
}

.speed-primary span,
.speed-metric span {
  color: var(--muted);
  display: block;
  font-size: 0.9rem;
}

.speed-primary strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.9rem, 4vw, 2.65rem);
  line-height: 1;
}

.speed-meter {
  height: 8px;
  overflow: hidden;
  background: rgba(255,255,255,0.08);
  border-radius: 999px;
  margin-top: 14px;
}

.speed-meter-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.35s ease;
}

.speed-meter-fill-upload {
  background: linear-gradient(90deg, #a7f3d0, #60a5fa);
}

.speed-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.speed-metric {
  padding: 14px;
  min-width: 0;
}

.speed-metric strong {
  display: block;
  margin-top: 6px;
  font-size: 1.05rem;
  overflow-wrap: anywhere;
}

.speed-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.speed-status-log {
  color: var(--muted);
  line-height: 1.55;
  margin-top: 12px;
  min-height: 54px;
  padding: 12px 14px;
}
.site-footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 24px 0 36px; }
.footer-content { color: var(--muted); font-size: 0.94rem; }
.footer-content p { margin: 4px 0; }

@media (max-width: 1000px) {
  .main-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span-full { grid-column: span 2; }
  .site-header .container { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 780px) {
  .main-grid, .score-group, .stats-grid, .packet-live-grid, .packet-progress-container, .packet-counter-grid, .speed-mini-grid, .speed-actions { grid-template-columns: 1fr; }
  .hero-card, .span-2, .span-full, .stat-box-wide { grid-column: span 1; }
  .domain-field input { min-width: 100%; }
}