@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #0a0c16;
  --bg-card: rgba(18, 22, 41, 0.65);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --bg-glass-hover: rgba(255, 255, 255, 0.05);

  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-green: #00f5a0;
  --accent-purple: #7f00ff;
  --accent-pink: #ff0844;
  --accent-orange: #ffb199;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --glow-cyan: 0 0 25px rgba(0, 242, 254, 0.35);
  --glow-purple: 0 0 25px rgba(127, 0, 255, 0.35);
  --glow-green: 0 0 25px rgba(0, 245, 160, 0.35);
  
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  position: relative;
  line-height: 1.5;
}

/* Background Animated Gradient Blobs */
.bg-glow-1 {
  position: fixed;
  top: -10%;
  left: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(79, 172, 254, 0.18) 0%, rgba(0, 0, 0, 0) 70%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
  animation: pulseBlob 12s infinite alternate ease-in-out;
}

.bg-glow-2 {
  position: fixed;
  bottom: -10%;
  right: 15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(127, 0, 255, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  filter: blur(100px);
  z-index: -1;
  pointer-events: none;
  animation: pulseBlob 15s infinite alternate-reverse ease-in-out;
}

@keyframes pulseBlob {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.2) translate(-30px, 40px); }
}

.app-container {
  width: 100%;
  max-width: 1200px;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Header & Server Specs Bar */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--bg-card-border);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-cyan);
}

.logo-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: #ffffff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-title h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff, var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-title p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.server-info-pills {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  padding: 0.4rem 0.9rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  backdrop-filter: blur(12px);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

/* Main Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: stretch;
}

@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

/* Speedometer Glass Card */
.gauge-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.test-stage-badge {
  position: absolute;
  top: 1.5rem;
  left: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.test-stage-badge.idle {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.test-stage-badge.download {
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  border-color: rgba(0, 242, 254, 0.3);
}

.test-stage-badge.upload {
  color: var(--accent-purple);
  background: rgba(127, 0, 255, 0.1);
  border-color: rgba(127, 0, 255, 0.3);
}

.test-stage-badge.ping {
  color: var(--accent-green);
  background: rgba(0, 245, 160, 0.1);
  border-color: rgba(0, 245, 160, 0.3);
}

/* SVG Speedometer Gauge */
.gauge-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1rem 0;
}

.gauge-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 16;
  stroke-dasharray: 628; /* 2 * PI * 100 */
  stroke-dashoffset: 157; /* 3/4 circle */
  stroke-linecap: round;
}

.gauge-progress {
  fill: none;
  stroke: url(#gauge-gradient);
  stroke-width: 16;
  stroke-dasharray: 628;
  stroke-dashoffset: 628;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.15s ease-out;
  filter: drop-shadow(0 0 12px rgba(0, 242, 254, 0.6));
}

.gauge-ticks {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.gauge-center-content {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.gauge-value {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff 30%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.2rem;
}

.gauge-unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gauge-sublabel {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
}

/* Dynamic Needle */
.gauge-needle {
  position: absolute;
  width: 4px;
  height: 110px;
  background: linear-gradient(to top, transparent 0%, var(--accent-cyan) 100%);
  bottom: 50%;
  left: calc(50% - 2px);
  transform-origin: bottom center;
  transform: rotate(-135deg);
  transition: transform 0.2s cubic-bezier(0.1, 0.9, 0.2, 1);
  border-radius: 4px;
  pointer-events: none;
  box-shadow: 0 0 15px var(--accent-cyan);
}

.gauge-needle-pivot {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text-main);
  border: 4px solid var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  top: calc(50% - 9px);
  left: calc(50% - 9px);
}

/* Control Buttons Bar */
.controls-bar {
  display: flex;
  gap: 1rem;
  width: 100%;
  margin-top: 1rem;
}

.btn {
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.9rem 1.8rem;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  flex: 2;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #ffffff;
  box-shadow: var(--glow-purple);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(127, 0, 255, 0.5);
}

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

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-outline-cyan {
  background: rgba(0, 242, 254, 0.05);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.3);
}

.btn-outline-cyan:hover {
  background: rgba(0, 242, 254, 0.15);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Stats Overview Column */
.stats-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.stat-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateX(4px);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon.dl {
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.stat-icon.ul {
  background: rgba(127, 0, 255, 0.1);
  color: var(--accent-purple);
  border: 1px solid rgba(127, 0, 255, 0.2);
}

.stat-icon.ping {
  background: rgba(0, 245, 160, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(0, 245, 160, 0.2);
}

.stat-icon.server {
  background: rgba(255, 177, 153, 0.1);
  color: var(--accent-orange);
  border: 1px solid rgba(255, 177, 153, 0.2);
}

.stat-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stat-info {
  flex: 1;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.stat-unit {
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Server Internet Speed Section Card */
.server-speed-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-xl);
  padding: 1.5rem 2rem;
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-title-group h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.server-speed-results {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  background: rgba(0, 0, 0, 0.2);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.server-res-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.server-res-item span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.server-res-item strong {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* History / Results Table Card */
.history-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-xl);
  padding: 1.5rem 2rem;
  backdrop-filter: blur(20px);
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.9rem;
}

.history-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--bg-card-border);
}

.history-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-main);
}

.history-table tr:last-child td {
  border-bottom: none;
}

.history-table .val-download {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
}

.history-table .val-upload {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-purple);
}

.history-table .val-ping {
  font-family: var(--font-mono);
  color: var(--accent-green);
}

/* Results Summary Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 7, 15, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #111528;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  width: 90%;
  max-width: 540px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 1.4rem;
  font-weight: 800;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.close-btn:hover {
  color: var(--text-main);
}

.modal-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.modal-summary-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.modal-summary-box .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.modal-summary-box .value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
}

.modal-summary-box.dl .value {
  color: var(--accent-cyan);
}

.modal-summary-box.ul .value {
  color: var(--accent-purple);
}

.modal-summary-box.ping .value {
  color: var(--accent-green);
}

.modal-summary-box.jitter .value {
  color: var(--accent-orange);
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  padding-top: 1rem;
}