/* StepByte Studio - Common Styles */

:root {
  --color-navy: #1a2b4a;
  --color-navy-light: #2a4068;
  --color-green: #2d8a5f;
  --color-green-light: #3aa876;
  --color-green-pale: #e8f5ef;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-border: #e0e4ea;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fc;
  --max-width: 960px;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(26, 43, 74, 0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-green);
  text-decoration: none;
}

a:hover {
  color: var(--color-green-light);
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  background: var(--color-navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--color-green-light);
  text-decoration: none;
}

.main-nav {
  display: flex;
  gap: 0.25rem 1.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  padding: 0.25rem 0;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-green-light);
  text-decoration: none;
}

/* Hero */

.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: #fff;
  padding: 3rem 0;
}

.hero-brand {
  margin-bottom: 1.5rem;
  text-align: center;
}

.hero-brand-logo {
  display: block;
  max-width: 100%;
  width: min(100%, 680px);
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius);
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.3;
}

.hero .tagline {
  margin: 0;
  font-size: 1.05rem;
  opacity: 0.92;
  max-width: 36em;
}

.hero .reading {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Main content */

main {
  padding: 2.5rem 0 3rem;
}

.page-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
  color: var(--color-navy);
}

.page-lead {
  margin: 0 0 2rem;
  color: var(--color-text-muted);
  font-size: 1rem;
}

section {
  margin-bottom: 2.5rem;
}

section h2 {
  font-size: 1.25rem;
  color: var(--color-navy);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-green);
  display: inline-block;
}

section h3 {
  font-size: 1.05rem;
  color: var(--color-navy-light);
  margin: 1.5rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
}

ul, ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.app-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.app-card:hover {
  box-shadow: 0 4px 16px rgba(26, 43, 74, 0.12);
  border-color: var(--color-green);
}

.app-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--color-navy);
}

.app-card p {
  flex: 1;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.app-card .action-group {
  margin-top: auto;
}

.app-card .card-link {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 600;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.badge-live {
  background: var(--color-green-pale);
  color: var(--color-green);
}

.badge-dev {
  background: #fff3e0;
  color: #e65100;
}

/* News */

.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.news-list li:first-child {
  padding-top: 0;
}

.news-date {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

/* CTA */

.cta-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}

.cta-box p {
  margin-bottom: 1.25rem;
}

.btn {
  display: inline-block;
  background: var(--color-green);
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  transition: background 0.2s;
}

.btn:hover {
  background: var(--color-green-light);
  color: #fff;
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-green);
  border: 2px solid var(--color-green);
}

.btn-outline:hover {
  background: var(--color-green-pale);
  color: var(--color-green);
}

.btn-small {
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
}

.btn-disabled {
  display: inline-block;
  background: #eef1f6;
  color: var(--color-text-muted);
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  cursor: not-allowed;
}

.action-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Info table */

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.info-table th,
.info-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.info-table th {
  background: var(--color-bg-alt);
  color: var(--color-navy);
  font-weight: 600;
  width: 30%;
  white-space: nowrap;
}

/* Legal pages */

.legal-content h2 {
  font-size: 1.15rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.4rem;
  margin-top: 2rem;
  display: block;
  width: 100%;
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.legal-content ol {
  padding-left: 1.25rem;
}

.legal-content ol li {
  margin-bottom: 0.75rem;
}

/* Link list */

.link-list {
  list-style: none;
  padding: 0;
}

.link-list li {
  margin-bottom: 0.75rem;
}

.link-list a {
  font-weight: 500;
}

/* Contact */

.contact-email {
  font-size: 1.1rem;
  word-break: break-all;
}

.future-note {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-green);
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* App detail */

.app-detail-header {
  margin-bottom: 2rem;
}

.app-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(260px, 1fr);
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 2.5rem;
}

.app-hero-body {
  background: linear-gradient(135deg, rgba(26, 43, 74, 0.06), rgba(45, 138, 95, 0.08));
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.app-hero-body .badge {
  margin-bottom: 1rem;
}

.app-hero-body .page-title {
  margin-bottom: 0.65rem;
}

.app-hero-body .page-lead {
  margin-bottom: 1rem;
}

.app-hero-copy {
  color: var(--color-text-muted);
  max-width: 42rem;
}

.app-quick-facts {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.app-quick-facts h2 {
  margin-top: 0;
}

.app-quick-facts ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.app-quick-facts li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.app-quick-facts li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.app-quick-facts strong {
  display: block;
  color: var(--color-navy);
  margin-bottom: 0.2rem;
}

.app-section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: start;
}

.panel-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.panel-box h2,
.panel-box h3 {
  margin-top: 0;
}

.feature-list {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.steps-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  box-shadow: var(--shadow);
}

.step-number {
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-green);
  color: #fff;
  font-weight: 700;
}

.step-content strong {
  display: block;
  color: var(--color-navy);
  margin-bottom: 0.2rem;
}

.helper-text {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.screenshot-card {
  min-height: 220px;
  border: 1px dashed #b7c2d0;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fbfcfe 0%, #f4f7fb 100%);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.screenshot-label {
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--color-navy);
}

.screenshot-path {
  margin-top: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  word-break: break-all;
}

.app-link-panel {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.app-link-panel p:last-child {
  margin-bottom: 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.trust-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.trust-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card-meta {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.card-meta span {
  display: inline-block;
  margin-right: 0.75rem;
}

.notice-box {
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-size: 0.92rem;
  margin: 1.5rem 0;
}

.notice-box strong {
  color: var(--color-navy);
}

/* Footer */

.site-footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  padding: 2.5rem 0 1.5rem;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
}

.footer-nav a:hover {
  color: var(--color-green-light);
}

.footer-copy {
  font-size: 0.8rem;
  opacity: 0.6;
  margin: 0;
}

/* Layout wrapper */

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Responsive */

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .main-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .hero {
    padding: 2rem 0;
  }

  .hero-brand-logo {
    width: min(100%, 300px);
  }

  .info-table th {
    white-space: normal;
    width: 35%;
  }

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

  .app-hero,
  .app-section-grid {
    grid-template-columns: 1fr;
  }

  .steps-list li {
    flex-direction: column;
  }
}