/* shared.css — newme-ai-demo common styles */
:root {
  --purple: #7C3AED;
  --purple-light: #A78BFA;
  --pink: #EC4899;
  --warm-white: #FAFAF9;
  --warm-gray-50: #F5F5F4;
  --warm-gray-100: #E7E5E4;
  --warm-gray-500: #78716C;
  --warm-gray-700: #44403C;
  --warm-gray-900: #1C1917;
  --gradient: linear-gradient(135deg, #7C3AED, #EC4899);
  --radius: 16px;
}

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

body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  background: var(--warm-white);
  color: var(--warm-gray-900);
  line-height: 1.6;
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--gradient);
  padding: 48px 24px 56px;
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
}

.header::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 350px;
  height: 350px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}

.header-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.18);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  transition: background 0.2s;
  backdrop-filter: blur(8px);
}

.back-link:hover {
  background: rgba(255,255,255,0.3);
}

.back-link svg {
  width: 14px;
  height: 14px;
}

.header h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.header p {
  font-size: clamp(14px, 2.5vw, 17px);
  color: rgba(255,255,255,0.85);
  font-weight: 400;
}

/* Tab Navigation */
.tab-nav-wrapper {
  max-width: 900px;
  margin: -24px auto 0;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

.tab-nav {
  display: flex;
  background: #fff;
  border-radius: 16px;
  padding: 6px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  gap: 4px;
  overflow-x: auto;
}

.tab-nav::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex: 1;
  min-width: max-content;
  padding: 12px 20px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--warm-gray-500);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.25s;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--warm-gray-700);
  background: var(--warm-gray-50);
}

.tab-btn.active {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 2px 12px rgba(124,58,237,0.3);
}

/* Main Content */
.main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.35s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section Titles */
.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--warm-gray-900);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title .icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

/* Tool Cards */
.tools-grid {
  display: grid;
  gap: 16px;
}

.tool-card {
  background: #fff;
  border-radius: 20px;
  padding: 24px 24px 24px 28px;
  display: flex;
  gap: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.25s, transform 0.25s;
}

.tool-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.tool-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
}

.tool-card .tool-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.tool-card .tool-body {
  flex: 1;
  min-width: 0;
}

.tool-card .tool-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.tool-card .tool-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--warm-gray-900);
}

.tool-card .tool-company {
  font-size: 12px;
  font-weight: 500;
  color: var(--warm-gray-500);
  background: var(--warm-gray-50);
  padding: 2px 10px;
  border-radius: 100px;
}

.tool-card .tool-desc {
  font-size: 14px;
  color: var(--warm-gray-700);
  margin-bottom: 12px;
  line-height: 1.7;
}

.tool-card .tool-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.tool-card .tool-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.badge-price {
  background: #f0fdf4;
  color: #15803d;
}

.badge-strength {
  background: #eff6ff;
  color: #1d4ed8;
}

/* Comparison Table */
.table-wrapper {
  overflow-x: auto;
  border-radius: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

.table-wrapper::-webkit-scrollbar {
  height: 6px;
}

.table-wrapper::-webkit-scrollbar-track {
  background: var(--warm-gray-50);
}

.table-wrapper::-webkit-scrollbar-thumb {
  background: var(--warm-gray-100);
  border-radius: 3px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
  font-size: 14px;
}

.comparison-table thead th {
  padding: 16px 14px;
  text-align: center;
  font-weight: 700;
  font-size: 13px;
  color: #fff;
  background: var(--gradient);
  white-space: nowrap;
}

.comparison-table thead th:first-child {
  text-align: left;
  border-radius: 16px 0 0 0;
}

.comparison-table thead th:last-child {
  border-radius: 0 16px 0 0;
}

.comparison-table tbody td {
  padding: 14px;
  text-align: center;
  border-bottom: 1px solid var(--warm-gray-100);
  color: var(--warm-gray-700);
  white-space: nowrap;
}

.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--warm-gray-900);
  background: var(--warm-gray-50);
  position: sticky;
  left: 0;
  z-index: 1;
}

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

.comparison-table tbody tr:hover td {
  background: rgba(124,58,237,0.03);
}

.comparison-table tbody tr:hover td:first-child {
  background: #eee9fe;
}

.cell-highlight {
  font-weight: 600;
  color: var(--purple);
}

.table-legend {
  margin-top: 16px;
  font-size: 13px;
  color: var(--warm-gray-500);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.table-legend span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Workflow */
.workflow-section {
  margin-bottom: 40px;
}

.workflow-section:last-child {
  margin-bottom: 0;
}

.workflow-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--warm-gray-900);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.workflow-title .wf-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
}

.workflow-desc {
  font-size: 13px;
  color: var(--warm-gray-500);
  margin-bottom: 20px;
}

.workflow-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.wf-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  flex: 0 0 auto;
  width: 120px;
}

.wf-step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  box-shadow: 0 3px 12px rgba(124,58,237,0.25);
  position: relative;
  z-index: 1;
}

.wf-step-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--warm-gray-900);
  margin-bottom: 4px;
}

.wf-step-desc {
  font-size: 11px;
  color: var(--warm-gray-500);
  line-height: 1.5;
}

.wf-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 8px;
  width: 32px;
  flex-shrink: 0;
}

.wf-arrow svg {
  width: 24px;
  height: 24px;
  color: var(--purple-light);
}

.workflow-tips {
  margin-top: 16px;
  background: linear-gradient(135deg, rgba(124,58,237,0.06), rgba(236,72,153,0.06));
  border-radius: 14px;
  padding: 16px 20px;
  border-left: 4px solid var(--purple);
}

.workflow-tips .tip-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.workflow-tips .tip-text {
  font-size: 13px;
  color: var(--warm-gray-700);
  line-height: 1.7;
}

/* Best Practice / Concept Cards */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.concept-card {
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  transition: box-shadow 0.25s, transform 0.25s;
}

.concept-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.concept-card .concept-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 14px;
}

.concept-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--warm-gray-900);
  margin-bottom: 8px;
}

.concept-card p {
  font-size: 13px;
  color: var(--warm-gray-700);
  line-height: 1.7;
}

/* Use Case Cards */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.usecase-card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  transition: box-shadow 0.25s, transform 0.25s;
}

.usecase-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.usecase-icon-area {
  height: 100px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.usecase-icon-area::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 100px;
  height: 100px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
}

.usecase-icon-area .uc-icon {
  font-size: 40px;
  position: relative;
  z-index: 1;
}

.usecase-body {
  padding: 20px;
}

.usecase-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--warm-gray-900);
  margin-bottom: 8px;
}

.usecase-body .uc-desc {
  font-size: 13px;
  color: var(--warm-gray-700);
  line-height: 1.7;
  margin-bottom: 14px;
}

.uc-recommend {
  margin-bottom: 10px;
}

.uc-recommend-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--warm-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.uc-recommend-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.uc-tool-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  color: #fff;
}

.uc-tip {
  font-size: 12px;
  color: var(--warm-gray-500);
  background: var(--warm-gray-50);
  border-radius: 10px;
  padding: 10px 14px;
  line-height: 1.6;
}

.uc-tip strong {
  color: var(--warm-gray-700);
}

/* Overview Cards (role pages) */
.overview-card {
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  margin-bottom: 16px;
}

.overview-stat {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.stat-item {
  text-align: center;
  padding: 12px;
  background: var(--warm-gray-50);
  border-radius: 12px;
}

.stat-value {
  font-size: 24px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 12px;
  color: var(--warm-gray-500);
  margin-top: 4px;
}

/* Prompt Box (role pages) */
.prompt-box {
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  margin-bottom: 16px;
}

.prompt-box h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--warm-gray-900);
  margin-bottom: 12px;
}

.prompt-code {
  background: var(--warm-gray-50);
  border-radius: 12px;
  padding: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--warm-gray-700);
  white-space: pre-wrap;
  margin-bottom: 12px;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border: 1px solid var(--warm-gray-100);
  border-radius: 100px;
  background: #fff;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  color: var(--warm-gray-700);
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--warm-gray-50);
  border-color: var(--purple-light);
  color: var(--purple);
}

/* Roadmap (role pages) */
.roadmap-container {
  position: relative;
  padding-left: 32px;
}

.roadmap-container::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--warm-gray-100);
}

.roadmap-phase {
  position: relative;
  margin-bottom: 32px;
}

.roadmap-phase:last-child {
  margin-bottom: 0;
}

.roadmap-marker {
  position: absolute;
  left: -32px;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  z-index: 1;
}

.roadmap-content {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
}

.roadmap-period {
  font-size: 13px;
  font-weight: 600;
  color: var(--purple);
  margin-bottom: 8px;
}

.roadmap-items {
  list-style: none;
  padding: 0;
}

.roadmap-items li {
  font-size: 13px;
  color: var(--warm-gray-700);
  line-height: 1.8;
  padding-left: 16px;
  position: relative;
}

.roadmap-items li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--purple-light);
}

/* Info Box */
.info-box {
  background: linear-gradient(135deg, rgba(124,58,237,0.06), rgba(236,72,153,0.06));
  border-radius: 16px;
  padding: 20px 24px;
  border-left: 4px solid var(--purple);
  margin-bottom: 24px;
}

.info-box h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 8px;
}

.info-box p {
  font-size: 13px;
  color: var(--warm-gray-700);
  line-height: 1.7;
}

/* Warning Box */
.warning-box {
  background: #FEF3C7;
  border-left: 4px solid #F59E0B;
  border-radius: 12px;
  padding: 16px 20px;
  margin: 24px 0;
}

.warning-box strong {
  color: #92400E;
}

.warning-box p {
  font-size: 13px;
  color: #92400E;
  line-height: 1.7;
}

/* FAQ Accordion */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid var(--warm-gray-100);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--warm-gray-900);
}

.faq-question .faq-toggle {
  font-size: 20px;
  color: var(--purple);
  transition: transform 0.3s;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--warm-gray-700);
  line-height: 1.8;
}

/* Responsive */
@media (max-width: 640px) {
  .header {
    padding: 32px 16px 44px;
  }

  .tab-nav-wrapper {
    padding: 0 16px;
  }

  .tab-btn {
    padding: 10px 14px;
    font-size: 13px;
  }

  .main {
    padding: 24px 16px 48px;
  }

  .tool-card {
    flex-direction: column;
    gap: 14px;
    padding: 20px 20px 20px 24px;
  }

  .tool-card .tool-icon {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }

  .workflow-steps {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .wf-step {
    width: 100%;
    max-width: 200px;
  }

  .wf-arrow {
    transform: rotate(90deg);
    padding: 0;
    height: 28px;
    width: auto;
  }

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

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