/**
 * WebSpeed Analyzer – Frontend Premium UI (Clean Tech)
 * Solo presentazione; nessuna logica test.
 * WP 6.x, PHP 8.1+, responsive, accessibile.
 */

/* ---- Variables ---- */
:root {
  --ws-primary: #0d9488;
  --ws-primary-dark: #0f766e;
  --ws-success: #10b981;
  --ws-warning: #f59e0b;
  --ws-danger: #ef4444;
  --ws-bg: #f8fafc;
  --ws-card-bg: #ffffff;
  --ws-text: #1e293b;
  --ws-text-muted: #64748b;
  --ws-border: #e2e8f0;
  --ws-radius: 12px;
  --ws-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --ws-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
}

/* ---- Base wrap ---- */
#webspeed-analyzer-frontend.webspeed-analyzer-frontend {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem;
  color: var(--ws-text);
  background: var(--ws-bg);
}

@media (min-width: 768px) {
  #webspeed-analyzer-frontend.webspeed-analyzer-frontend {
    padding: 2rem;
  }
}

/* ---- Hero ---- */
#webspeed-hero-logo {
  text-align: center;
  margin-bottom: 1.5rem;
}

#webspeed-hero-logo img {
  max-height: 48px;
  width: auto;
  display: inline-block;
}

#webspeed-hero {
  background: var(--ws-card-bg);
  border-radius: var(--ws-radius);
  box-shadow: var(--ws-shadow);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

#webspeed-hero-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

#webspeed-hero-desc {
  color: var(--ws-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

#webspeed-analyzer-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: stretch;
}

#webspeed-analyzer-form input[type="text"] {
  flex: 1;
  min-width: 200px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--ws-border);
  border-radius: 8px;
  font-size: 1rem;
}

#webspeed-analyzer-form input:focus {
  outline: 2px solid var(--ws-primary);
  outline-offset: 2px;
}

#webspeed-analyze-btn {
  padding: 0.75rem 1.5rem;
  background: var(--ws-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  min-height: 44px;
}

#webspeed-analyze-btn:hover {
  background: var(--ws-primary-dark);
}

#webspeed-analyze-btn:focus {
  outline: 2px solid var(--ws-primary);
  outline-offset: 2px;
}

@media (max-width: 479px) {
  #webspeed-analyzer-form {
    flex-direction: column;
  }
  #webspeed-analyzer-form input[type="text"] {
    min-width: 100%;
  }
  #webspeed-analyze-btn {
    width: 100%;
  }
}

/* ---- Messages ---- */
#webspeed-wow-messages {
  margin-bottom: 1rem;
  min-height: 2rem;
}

.wow-message {
  font-size: 0.9375rem;
  color: var(--ws-text-muted);
}

/* ---- Progress + Stepper ---- */
#webspeed-wow-progress {
  background: var(--ws-card-bg);
  border-radius: var(--ws-radius);
  box-shadow: var(--ws-shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

#webspeed-wow-bar {
  height: 8px;
  background: var(--ws-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

#webspeed-wow-bar-inner {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--ws-primary);
  border-radius: 4px;
  transition: width 0.35s ease;
}

#webspeed-wow-steps {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

#webspeed-wow-steps li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

#webspeed-wow-steps li .icon {
  font-size: 1.25rem;
}

#webspeed-wow-steps li.active .status {
  color: var(--ws-primary);
}

#webspeed-wow-steps li.done .status {
  color: var(--ws-success);
}

#webspeed-wow-steps li.fail .status {
  color: var(--ws-danger);
}

#webspeed-wow-timer {
  font-size: 0.875rem;
  color: var(--ws-text-muted);
}

#webspeed-wow-tip {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--ws-text-muted);
}

#webspeed-wow-final {
  text-align: center;
  padding: 1rem 0 0;
}

#webspeed-wow-final .big-check {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.wow-glow {
  color: var(--ws-success);
  font-weight: 600;
}

/* ---- Results: 2 cols desktop / 1 col mobile ---- */
#webspeed-result-box {
  margin-top: 1.5rem;
}

.main-cols {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .main-cols {
    grid-template-columns: 1fr 1fr;
  }
}

.left-col,
.right-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ---- Card: Risultato analisi + Gauges ---- */
.score-summary-glass {
  background: var(--ws-card-bg);
  border-radius: var(--ws-radius);
  box-shadow: var(--ws-shadow);
  padding: 1.5rem;
}

.score-summary-glass h3 {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.webspeed-gauges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.gauge-wrap {
  text-align: center;
}

.gauge-wrap .gauge-svg {
  width: 100%;
  max-width: 90px;
  height: auto;
  margin: 0 auto 0.25rem;
  display: block;
}

.gauge-wrap .gauge-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
}

.gauge-wrap .gauge-label {
  display: block;
  font-size: 0.75rem;
  color: var(--ws-text-muted);
}

.gauge-wrap.gauge-green { color: var(--ws-success); }
.gauge-wrap.gauge-yellow { color: var(--ws-warning); }
.gauge-wrap.gauge-red { color: var(--ws-danger); }
.gauge-wrap.gauge-green .gauge-value { color: var(--ws-success); }
.gauge-wrap.gauge-yellow .gauge-value { color: var(--ws-warning); }
.gauge-wrap.gauge-red .gauge-value { color: var(--ws-danger); }

#webspeed-results {
  margin-top: 0.75rem;
}

#webspeed-results .result-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

#webspeed-results .result-row .label {
  flex: 0 0 auto;
  color: var(--ws-text-muted);
}

/* ---- Card: Dati sito ---- */
.premium-site-info-box {
  background: var(--ws-card-bg);
  border-radius: var(--ws-radius);
  box-shadow: var(--ws-shadow);
  padding: 1.5rem;
}

.premium-site-info-title {
  font-weight: 700;
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.premium-site-info-list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
}

.premium-site-info-list li {
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--ws-border);
}

.premium-site-info-list li:last-child {
  border-bottom: none;
}

/* ---- Card: Core Web Vitals ---- */
.premium-vitals-box {
  background: var(--ws-card-bg);
  border-radius: var(--ws-radius);
  box-shadow: var(--ws-shadow);
  padding: 1.5rem;
}

.premium-vitals-title {
  font-weight: 700;
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.premium-vitals-list {
  margin-bottom: 1rem;
}

.premium-vitals-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.9375rem;
}

.premium-vitals-desc {
  font-size: 0.8125rem;
  color: var(--ws-text-muted);
  line-height: 1.5;
}

/* ---- Suggerimenti AI (step dopo salvataggio) ---- */
.suggestion-row.webspeed-ai-section {
  margin-top: 1.5rem;
}

.ai-suggestions-title {
  margin: 0 0 0.35rem 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ws-text, #181920);
}

.ai-suggestions-title .ai-title-icon {
  margin-right: 0.35rem;
}

.ai-suggestions-desc {
  margin: 0 0 1rem 0;
  font-size: 0.95rem;
  color: var(--ws-text-muted, #666);
}

.suggestion-row {
  margin-top: 1.5rem;
}

.ai-suggestions-box {
  background: var(--ws-card-bg);
  border-radius: var(--ws-radius);
  box-shadow: var(--ws-shadow);
  padding: 1.5rem;
}

.ai-suggestions-box .webspeed-ai-wow ul {
  margin: 0;
  padding-left: 1.25rem;
}

.ai-suggestions-box .webspeed-ai-wow li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

/* ---- Download + CTA ---- */
#webspeed-downloads {
  margin-top: 1rem;
}

#webspeed-next-btn {
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--ws-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}

#webspeed-next-btn:hover {
  background: var(--ws-primary-dark);
}

#webspeed-next-btn:focus {
  outline: 2px solid var(--ws-primary);
  outline-offset: 2px;
}

/* ---- Accessibilità: focus visible ---- */
#webspeed-analyzer-frontend *:focus-visible {
  outline: 2px solid var(--ws-primary);
  outline-offset: 2px;
}

/* ---- Live region (screen reader) ---- */
[aria-live="polite"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}