/*
 * style.css — NetSonde Speed Test
 * Developed by: Fluffy Kittens Association (personal project)
 *
 * Theme: "Dark Instrument" — dark slate tones, cyan accents, monospace
 * details that give the feel of a professional network diagnostics tool.
 * Fonts: Space Grotesk (headings/UI) + JetBrains Mono (readings/data).
 */

/* ── Custom Properties ──────────────────────────────────────────── */
:root {
  --bg:              #0d1117;
  --bg-raised:       #161b22;
  --surface:         #1c2230;
  --surface-hover:   #212840;
  --border:          #2a3347;
  --border-bright:   #3a4a65;

  --accent:          #22d3ee;       /* cyan-400 */
  --accent-dim:      rgba(34, 211, 238, 0.12);
  --accent-glow:     rgba(34, 211, 238, 0.35);

  --success:         #4ade80;
  --success-dim:     rgba(74, 222, 128, 0.12);
  --warning:         #fbbf24;
  --warning-dim:     rgba(251, 191, 36, 0.12);
  --error:           #f87171;
  --error-dim:       rgba(248, 113, 113, 0.12);

  --text:            #e2e8f0;
  --text-muted:      #7d8fa6;
  --text-faint:      #475569;

  --shadow-card:     0 0 0 1px var(--border), 0 8px 32px rgba(0,0,0,0.45);
  --shadow-glow:     0 0 0 1px rgba(34,211,238,0.25), 0 8px 40px rgba(34,211,238,0.08);

  --radius:          14px;
  --radius-sm:       9px;
  --radius-pill:     9999px;

  --ease:            cubic-bezier(0.4, 0, 0.2, 1);
  --dur:             0.22s;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  /* Subtle dot-grid texture on the background */
  background-image: radial-gradient(circle, #1e2a3a 1px, transparent 1px);
  background-size: 28px 28px;
}

/* Hide elements before Alpine initialises to prevent flash of unstyled content */
[x-cloak] { display: none !important; }

/* ── Floating Emoji Layer ────────────────────────────────────────── */
.emoji-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-emoji {
  position: absolute;
  opacity: 0.45;
  user-select: none;
  animation: emojiFloat 4s ease-in-out infinite;
  will-change: transform;
}

@keyframes emojiFloat {
  0%   { transform: translateY(0px) rotate(-6deg); }
  50%  { transform: translateY(-24px) rotate(6deg); }
  100% { transform: translateY(0px) rotate(-6deg); }
}

/* ── Page Shell ─────────────────────────────────────────────────── */
.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Container ──────────────────────────────────────────────────── */
.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Header ─────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(13, 17, 23, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.logo-icon {
  color: var(--accent);
  font-size: 1.25rem;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.logo-text span {
  color: var(--accent);
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(34,211,238,0.2);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.03em;
}

/* ── Main ───────────────────────────────────────────────────────── */
.site-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem 2rem;
  gap: 1.75rem;
}

/* ── Card ───────────────────────────────────────────────────────── */
.card {
  width: 100%;
  max-width: 820px;
  background: var(--bg-raised);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.card--testing {
  border-color: rgba(34,211,238,0.2);
  box-shadow: var(--shadow-glow);
}

/* ── Panels (phases) ────────────────────────────────────────────── */
.panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 3.5rem 2.5rem;
}

/* ---- IDLE panel ---- */
.idle-icon-ring {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid rgba(34,211,238,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.75rem;
  font-size: 2rem;
  color: var(--accent);
  /* Slow pulse */
  animation: ringPulse 3s ease-in-out infinite;
}

@keyframes ringPulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%       { box-shadow: 0 0 0 14px transparent; }
}

.panel-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 0.75rem;
  max-width: 480px;
  line-height: 1.25;
}

.panel-sub {
  color: var(--text-muted);
  font-size: 0.975rem;
  max-width: 400px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.btn-start {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #0d1117;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.875rem 2.75rem;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  box-shadow: 0 0 28px var(--accent-glow);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
  margin-bottom: 2.25rem;
  letter-spacing: 0.01em;
}

.btn-start:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 42px var(--accent-glow);
  background: #67e8f9;
}

.btn-start:active {
  transform: translateY(0);
}

.features-strip {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.feat {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
}

.feat i {
  color: var(--accent);
  font-size: 0.8rem;
}

/* ---- TESTING panel ---- */
.panel--testing {
  gap: 1.5rem;
  padding: 2.75rem 2.5rem;
}

/* Server info chip */
.server-chip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  padding: 0.65rem 1.25rem;
  font-size: 0.875rem;
}

.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  flex-shrink: 0;
  animation: dotBlink 1.4s ease-in-out infinite;
}

@keyframes dotBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.chip-details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.chip-name {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
}

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

.chip-latency {
  margin-left: 6px;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.72rem;
  color: var(--text-faint);
}

/* Metrics row */
.metrics-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

/* Individual metric card */
.metric-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: 150px;
}

.metric-tile--gauge {
  min-width: 220px;
}

.metric-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* Ping value */
.metric-big {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  transition: color var(--dur) var(--ease);
}

.val--good    { color: var(--success); }
.val--ok      { color: var(--warning); }
.val--bad     { color: var(--error); }
.val--neutral { color: var(--text-muted); }

.metric-badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  background: var(--surface-hover);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

/* ── SVG Gauge ───────────────────────────────────────────────────── */
.gauge-wrap {
  position: relative;
  width: 196px;
}

.gauge-svg {
  width: 100%;
  overflow: visible;
  display: block;
}

.gauge-track {
  fill: none;
  stroke: var(--border-bright);
  stroke-width: 10;
  stroke-linecap: round;
}

.gauge-fill {
  fill: none;
  stroke: url(#cyanGradient);
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.18s linear;
  filter: drop-shadow(0 0 4px var(--accent-glow));
}

/* Gauge readout overlay */
.gauge-readout {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 4px;
}

.gauge-number {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 1.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1;
}

.gauge-unit {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Status Bar ──────────────────────────────────────────────────── */
.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-bright);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.status-text {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
}

/* ── Error Panel ─────────────────────────────────────────────────── */
.panel--error {
  gap: 1.1rem;
}

.error-icon-ring {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: var(--error-dim);
  border: 1px solid rgba(248,113,113,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--error);
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.error-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 420px;
  line-height: 1.75;
}

.error-code-block {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border-bright);
  border-left: 3px solid var(--error);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
}

.error-code {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--error);
  letter-spacing: 0.04em;
}

.btn-retry {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-bright);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.7rem 2rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
  margin-top: 0.25rem;
}

.btn-retry:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d1117;
  transform: translateY(-2px);
}

/* ── Info Grid (idle page) ───────────────────────────────────────── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
  width: 100%;
  max-width: 820px;
}

.info-tile {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
  transition: border-color var(--dur) var(--ease);
}

.info-tile:hover {
  border-color: var(--border-bright);
}

.info-tile-icon {
  font-size: 1.1rem;
  color: var(--accent);
}

.info-tile h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
}

.info-tile p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Footer ─────────────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.footer-brand i { color: var(--accent); }

.footer-address {
  font-size: 0.775rem;
  color: var(--text-faint);
  margin-bottom: 1.5rem;
}

.footer-sep {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 1.5rem;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-faint);
}

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .panel {
    padding: 2.25rem 1.5rem;
  }

  .panel-title {
    font-size: 1.45rem;
  }

  .metrics-row {
    flex-direction: column;
    align-items: center;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}