/* =============================================================
   Smart Meter Help UK — Issue Timeline v1.1
   Native WordPress shortcode styles.
   ============================================================= */

.smh-timeline,
.smh-timeline *,
.smh-timeline *::before,
.smh-timeline *::after {
  box-sizing: border-box;
}

.smh-timeline {
  --smh-timeline-navy: #0d1b2a;
  --smh-timeline-green: #00c896;
  --smh-timeline-green-soft: #eaf6f2;
  --smh-timeline-bg: #f4f7fa;
  --smh-timeline-text: #1a2a3a;
  --smh-timeline-muted: #4a5a6a;
  --smh-timeline-border: #d0dce8;
  --smh-timeline-white: #ffffff;
  --smh-timeline-shadow: 0 2px 12px rgba(13, 27, 42, 0.08);
  --smh-timeline-shadow-hover: 0 6px 24px rgba(13, 27, 42, 0.14);

  width: 100%;
  margin: 0;
  padding: 28px 0 42px;
  color: var(--smh-timeline-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.smh-timeline__shell {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 0 18px;
}

.smh-timeline__header {
  margin-bottom: 20px;
}

.smh-timeline__eyebrow,
.smh-timeline__step-title {
  margin: 0 0 8px;
  color: var(--smh-timeline-muted);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.smh-timeline__header h1 {
  margin: 0 0 10px;
  color: var(--smh-timeline-navy);
  font-size: clamp(1.75rem, 8vw, 2.6rem);
  font-weight: 800;
  line-height: 1.12;
}

.smh-timeline__header p,
.smh-timeline__help {
  margin: 0;
  color: var(--smh-timeline-muted);
  font-size: 1rem;
  line-height: 1.55;
}

.smh-timeline__progress {
  margin-bottom: 14px;
}

.smh-timeline__notice {
  display: grid;
  gap: 4px;
  margin: 0 0 16px;
  padding: 14px;
  background: var(--smh-timeline-green-soft);
  border: 1.5px solid rgba(0, 200, 150, 0.35);
  border-radius: 14px;
}

.smh-timeline__notice strong {
  color: var(--smh-timeline-navy);
  font-size: 0.95rem;
  line-height: 1.25;
}

.smh-timeline__notice span {
  color: var(--smh-timeline-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.smh-timeline__progress-label {
  display: block;
  margin-bottom: 8px;
  color: var(--smh-timeline-muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.smh-timeline__progress-track {
  width: 100%;
  height: 8px;
  overflow: hidden;
  background: var(--smh-timeline-bg);
  border-radius: 999px;
}

.smh-timeline__progress-fill {
  display: block;
  width: 0;
  height: 100%;
  background: var(--smh-timeline-green);
  border-radius: inherit;
  transition: width 0.2s ease;
}

.smh-timeline__card,
.smh-timeline__summary {
  background: var(--smh-timeline-white);
  border: 1.5px solid var(--smh-timeline-border);
  border-radius: 20px;
  box-shadow: var(--smh-timeline-shadow);
  padding: 18px;
}

.smh-timeline__card h2,
.smh-timeline__summary h2 {
  margin: 0 0 8px;
  color: var(--smh-timeline-navy);
  font-size: clamp(1.25rem, 5vw, 1.75rem);
  font-weight: 750;
  line-height: 1.22;
}

.smh-timeline__options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 18px 0;
}

.smh-timeline__option {
  width: 100%;
  min-height: 54px;
  padding: 14px;
  background: var(--smh-timeline-bg);
  border: 1.5px solid var(--smh-timeline-border);
  border-radius: 14px;
  color: var(--smh-timeline-text);
  cursor: pointer;
  font: inherit;
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.3;
  text-align: left;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.12s ease, background 0.18s ease;
}

.smh-timeline__option:hover,
.smh-timeline__option:focus-visible {
  border-color: var(--smh-timeline-green);
  box-shadow: var(--smh-timeline-shadow-hover);
  transform: translateY(-1px);
}

.smh-timeline__option.is-selected {
  background: var(--smh-timeline-green-soft);
  border-color: var(--smh-timeline-green);
}

.smh-timeline__note {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  color: var(--smh-timeline-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.smh-timeline__note textarea {
  width: 100%;
  min-height: 92px;
  resize: vertical;
  padding: 12px 14px;
  background: var(--smh-timeline-white);
  border: 1.5px solid var(--smh-timeline-border);
  border-radius: 14px;
  color: var(--smh-timeline-text);
  font: inherit;
  font-size: 1rem;
  line-height: 1.45;
}

.smh-timeline__note textarea:focus {
  border-color: var(--smh-timeline-green);
  outline: none;
}

.smh-timeline__nav,
.smh-timeline__summary-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.smh-timeline__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 18px;
  border: 1.5px solid transparent;
  border-radius: 14px;
  cursor: pointer;
  font: inherit;
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.12s ease;
}

.smh-timeline__button--primary {
  background: var(--smh-timeline-green);
  color: var(--smh-timeline-navy);
  box-shadow: 0 4px 16px rgba(0, 200, 150, 0.28);
}

.smh-timeline__button--primary:hover,
.smh-timeline__button--primary:focus-visible {
  background: #00e6b0;
  color: var(--smh-timeline-navy);
  text-decoration: none;
  transform: translateY(-1px);
}

.smh-timeline__button--ghost {
  background: var(--smh-timeline-white);
  border-color: var(--smh-timeline-border);
  color: var(--smh-timeline-text);
}

.smh-timeline__button--ghost:hover,
.smh-timeline__button--ghost:focus-visible {
  border-color: var(--smh-timeline-green);
  color: var(--smh-timeline-text);
  text-decoration: none;
  transform: translateY(-1px);
}

.smh-timeline__button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.smh-timeline__summary-list {
  display: grid;
  gap: 10px;
  margin: 18px 0;
}

.smh-timeline__summary-item,
.smh-timeline__next-step {
  padding: 13px 14px;
  background: var(--smh-timeline-bg);
  border: 1.5px solid var(--smh-timeline-border);
  border-radius: 14px;
}

.smh-timeline__summary-item strong,
.smh-timeline__next-step strong {
  display: block;
  margin-bottom: 3px;
  color: var(--smh-timeline-navy);
  font-size: 0.9rem;
  line-height: 1.25;
}

.smh-timeline__summary-item span,
.smh-timeline__next-step span {
  display: block;
  color: var(--smh-timeline-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.smh-timeline__next-step {
  margin-bottom: 18px;
  background: var(--smh-timeline-green-soft);
  border-color: rgba(0, 200, 150, 0.35);
}

.smh-timeline__noscript {
  margin-top: 14px;
  color: var(--smh-timeline-muted);
}

@media (min-width: 640px) {
  .smh-timeline {
    padding-top: 42px;
  }

  .smh-timeline__shell {
    padding: 0 24px;
  }

  .smh-timeline__card,
  .smh-timeline__summary {
    padding: 24px;
  }

  .smh-timeline__nav,
  .smh-timeline__summary-actions {
    grid-template-columns: 1fr 1fr;
  }
}