/* =====================================================
   SpeedTest Pro — Main Stylesheet
   ===================================================== */

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

:root {
  --accent:    #00d4ff;
  --accent2:   #7b2fff;
  --bg:        #0a0e1a;
  --bg2:       #111827;
  --bg3:       #1a2235;
  --card:      #141c2e;
  --border:    #1e2d47;
  --text:      #e8eaf0;
  --muted:     #6b7a99;
  --success:   #00e676;
  --warning:   #ffb300;
  --danger:    #ff3d71;
  --radius:    16px;
  --shadow:    0 8px 40px rgba(0,0,0,.5);
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Background grid ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    linear-gradient(rgba(0,212,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── Layout ── */
.wrapper {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

/* ── Header ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--border);
  gap: 16px;
  flex-wrap: wrap;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-area img {
  max-height: 48px;
  max-width: 160px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(0,212,255,.3));
}

.logo-area .brand-name {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.5px;
}

.header-info {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: .85rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.header-info span { display: flex; align-items: center; gap: 6px; }
.header-info i { font-size: 1rem; color: var(--accent); }

/* ── Hero bar ── */
.hero {
  text-align: center;
  padding: 48px 0 36px;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.8px;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1rem;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto 30px;
}

/* ── Info strip ── */
.info-strip {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 42px;
}

.info-chip {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 10px 22px;
  font-size: .85rem;
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition);
}

.info-chip:hover { border-color: var(--accent); }
.info-chip i { color: var(--accent); font-size: 1rem; }
.info-chip .label { color: var(--muted); }
.info-chip .value { font-weight: 600; color: var(--text); }

/* ── Main test card ── */
.test-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 32px 40px;
  box-shadow: var(--shadow);
  margin-bottom: 36px;
  position: relative;
  overflow: hidden;
}

.test-card::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(0,212,255,.06) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Gauge grid ── */
.gauges {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.gauge-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.gauge-wrap.main-gauge { transform: scale(1.18); transform-origin: bottom center; }

/* ── SVG Gauge ── */
.gauge-svg { filter: drop-shadow(0 0 16px rgba(0,212,255,.25)); }

.gauge-track  { fill: none; stroke: var(--bg3); }
.gauge-fill   { fill: none; stroke-linecap: round; transition: stroke-dashoffset 1s cubic-bezier(.4,0,.2,1); }
.gauge-center { fill: var(--bg2); }

.gauge-value {
  font-size: 2rem;
  font-weight: 800;
  fill: var(--text);
  text-anchor: middle;
  dominant-baseline: central;
}

.gauge-unit {
  font-size: .7rem;
  fill: var(--muted);
  text-anchor: middle;
  dominant-baseline: central;
}

.gauge-label {
  font-size: .8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

.gauge-sub {
  font-size: .75rem;
  color: var(--muted);
  text-align: center;
}

/* ── Progress bar (jitter / used) ── */
.bar-metric {
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
}

.bar-label {
  display: flex;
  justify-content: space-between;
  font-size: .78rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.bar-track {
  height: 6px;
  background: var(--bg3);
  border-radius: 99px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 99px;
  width: 0;
  transition: width 1s var(--transition);
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

/* ── CTA button ── */
.btn-start {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto;
  padding: 16px 52px;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: .5px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  box-shadow: 0 4px 24px rgba(0,212,255,.35);
  position: relative;
  overflow: hidden;
}

.btn-start::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,.08);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-start:hover { transform: translateY(-2px); box-shadow: 0 8px 36px rgba(0,212,255,.45); }
.btn-start:hover::after { opacity: 1; }
.btn-start:active { transform: translateY(0); }
.btn-start:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-start i { font-size: 1.2rem; }

/* ── Status text ── */
.status-text {
  text-align: center;
  font-size: .9rem;
  color: var(--muted);
  margin-top: 18px;
  min-height: 22px;
  transition: color var(--transition);
}

.status-text.active { color: var(--accent); }
.status-text.done   { color: var(--success); }
.status-text.error  { color: var(--danger); }

/* ── Phase indicator ── */
.phase-steps {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.phase-step {
  padding: 5px 14px;
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .8px;
  text-transform: uppercase;
  background: var(--bg3);
  color: var(--muted);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.phase-step.active {
  background: rgba(0,212,255,.12);
  color: var(--accent);
  border-color: rgba(0,212,255,.3);
}

.phase-step.done {
  background: rgba(0,230,118,.1);
  color: var(--success);
  border-color: rgba(0,230,118,.25);
}

/* ── Results grid ── */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  margin-top: 12px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}

.results-grid.show { opacity: 1; transform: translateY(0); }

.result-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 18px;
  text-align: center;
  transition: border-color var(--transition);
}

.result-card:hover { border-color: var(--accent); }

.result-card .rc-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--accent);
}

.result-card .rc-value {
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}

.result-card .rc-unit {
  font-size: .75rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.result-card .rc-label {
  font-size: .78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* ── Server info card ── */
.server-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 36px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.server-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(0,212,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
  flex-shrink: 0;
}

.server-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.server-info p  { font-size: .82rem; color: var(--muted); }

.server-badge {
  margin-left: auto;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 600;
  background: rgba(0,230,118,.1);
  color: var(--success);
  border: 1px solid rgba(0,230,118,.25);
  display: flex;
  align-items: center;
  gap: 6px;
}

.server-badge::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .3; }
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 0;
  text-align: center;
  font-size: .8rem;
  color: var(--muted);
}

footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ── Live clock ── */
#live-clock {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--text);
}

/* ── Tooltip ── */
[data-tooltip] {
  position: relative;
  cursor: default;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  background: var(--bg3);
  color: var(--text);
  font-size: .75rem;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}

[data-tooltip]:hover::after { opacity: 1; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .test-card { padding: 28px 16px; }
  .gauges { gap: 20px; }
  .gauge-wrap.main-gauge { transform: scale(1.06); }
  header { justify-content: center; text-align: center; }
  .header-info { justify-content: center; }
  .server-card { justify-content: center; text-align: center; }
  .server-badge { margin: 0 auto; }
}

@media (max-width: 400px) {
  .gauges { flex-direction: column; align-items: center; }
  .gauge-wrap.main-gauge { transform: none; }
}

/* ── Spinner animation ── */
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin 1s linear infinite; display: inline-block; }

/* ── Glow on gauge during test ── */
.testing .gauge-svg { filter: drop-shadow(0 0 22px rgba(0,212,255,.5)); }