/* 1stpiece.io - shared styles v3 */
:root {
  --navy-900: #0f1f33;
  --navy-800: #162b47;
  --navy-700: #1e3a5f;
  --navy-600: #2a5080;
  --navy-500: #3568a0;
  --navy-400: #5a8abf;
  --navy-300: #8ab0d8;
  --navy-200: #b8d4ee;
  --navy-100: #dce8f5;
  --navy-50: #f0f5fb;

  --gray-900: #1a1a2e;
  --gray-700: #3d3d56;
  --gray-500: #5a6275;
  --gray-400: #8890a0;
  --gray-300: #b0b6c3;
  --gray-200: #d8dce6;
  --gray-100: #eef0f4;
  --gray-50: #f7f8fa;

  --white: #fff;
  --color-accent: var(--navy-700);
  --color-link: var(--navy-600);
  --max-width: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ──────────── Header ──────────── */
header {
  padding: 1.2rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .site-name {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--navy-800);
}

header .site-name img {
  height: 28px;
  width: auto;
}

header nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-size: 0.82rem;
}

header nav a {
  color: var(--gray-500);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}

header nav a:hover {
  color: var(--navy-700);
}

header nav a[aria-current="page"] {
  color: var(--navy-800);
  font-weight: 700;
  pointer-events: none;
}

.site-name-link {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.site-name-link:hover {
  text-decoration: none;
  opacity: 0.8;
}

/* Language switch */
header nav .lang-link {
  padding: 0.2rem 0.55rem;
  border: 1.5px solid var(--gray-200);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gray-400);
  transition: all 0.15s;
}

header nav .lang-link:hover {
  border-color: var(--navy-400);
  color: var(--navy-600);
  background: var(--navy-50);
}

/* ──────────── Hero ──────────── */
.hero {
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 50%, var(--navy-600) 100%);
  margin: 0 -1.5rem;
  padding: 3.5rem 2rem 3rem;
  border-radius: 0 0 16px 16px;
  position: relative;
  overflow: hidden;
}

/* subtle grid texture */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero h1 {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 1rem;
  color: var(--white);
  word-break: keep-all;
  overflow-wrap: break-word;
  position: relative;
}

.hero .subcopy {
  font-size: 0.92rem;
  color: var(--navy-200);
  margin-bottom: 1.5rem;
  line-height: 1.8;
  position: relative;
}

.hero .status {
  font-size: 0.82rem;
  color: var(--navy-300);
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
  position: relative;
}

/* ──────────── CTA Buttons ──────────── */
.cta-links {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
  position: relative;
}

.cta-links a {
  display: inline-block;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-size: 0.88rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
}

.cta-links a.primary {
  background: var(--white);
  color: var(--navy-800);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.cta-links a.primary:hover {
  background: var(--navy-50);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transform: translateY(-1px);
}

.cta-links a.secondary {
  background: transparent;
  color: var(--navy-200);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.cta-links a.secondary:hover {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

/* CTA in body sections (not hero) */
.cta-section .cta-links a.primary {
  background: var(--navy-700);
  color: var(--white);
}

.cta-section .cta-links a.primary:hover {
  background: var(--navy-800);
}

.cta-section .cta-links a.secondary {
  color: var(--navy-700);
  border-color: var(--gray-200);
  background: var(--white);
}

.cta-section .cta-links a.secondary:hover {
  border-color: var(--navy-400);
  color: var(--navy-700);
  background: var(--navy-50);
}

/* ──────────── Sections ──────────── */
section {
  padding: 2.8rem 0;
  border-top: 1px solid var(--gray-100);
}

section h2 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--navy-800);
  letter-spacing: 0.01em;
}

section h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}

section p, section li {
  font-size: 0.93rem;
  color: var(--gray-700);
  line-height: 1.85;
}

section ul {
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}

section li {
  margin-bottom: 0.4rem;
}

section li strong {
  color: var(--gray-900);
}

/* ──────────── Plan Cards ──────────── */
.plan-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 1px 4px rgba(15, 31, 51, 0.04);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.plan-card:hover {
  box-shadow: 0 4px 16px rgba(15, 31, 51, 0.08);
  border-color: var(--navy-200);
}

.plan-card h3 {
  margin-top: 0;
  color: var(--navy-800);
}

.plan-card .plan-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 5px;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.plan-tag.active {
  background: #dcfce7;
  color: #15803d;
}

.plan-tag.upcoming {
  background: #fef3c7;
  color: #92400e;
}

/* ──────────── Review Examples ──────────── */
.review-example {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 1px 4px rgba(15, 31, 51, 0.04);
}

.review-example .example-header {
  font-size: 0.82rem;
  color: var(--gray-400);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 0.5rem;
}

.review-example .verdict {
  font-weight: 700;
  color: #15803d;
}

.review-example blockquote {
  border-left: 3px solid var(--navy-300);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--gray-700);
  font-size: 0.88rem;
}

.review-example blockquote strong {
  color: var(--navy-800);
}

.review-example .point {
  font-size: 0.83rem;
  color: var(--navy-600);
  font-style: italic;
  margin-top: 1rem;
  padding: 0.6rem 0.8rem;
  background: var(--navy-50);
  border-radius: 6px;
}

/* ──────────── Pipeline ──────────── */
.pipeline {
  background: var(--gray-50);
  padding: 1rem 1.2rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
  overflow-x: auto;
  margin: 1rem 0;
  border: 1px solid var(--gray-200);
  color: var(--navy-700);
}

/* ──────────── CTA Section ──────────── */
.cta-section {
  padding: 2.8rem 0;
  border-top: 1px solid var(--gray-100);
}

.cta-section h2 {
  margin-bottom: 1rem;
}

/* ──────────── FAQ ──────────── */
.faq-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--gray-100);
}

.faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.faq-item dt {
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.4rem;
  color: var(--navy-800);
}

.faq-item dd {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ──────────── Footer ──────────── */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--gray-100);
  font-size: 0.78rem;
  color: var(--gray-400);
}

footer a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.15s;
}

footer a:hover {
  color: var(--navy-600);
}

/* ──────────── Links ──────────── */
a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.15s;
}

a:hover {
  text-decoration: underline;
  color: var(--navy-800);
}

/* Blockquote (work page) */
section blockquote {
  border-left: 3px solid var(--navy-300);
  padding: 1rem 1.2rem;
  margin: 1rem 0;
  color: var(--gray-700);
  font-size: 0.9rem;
  background: var(--navy-50);
  border-radius: 0 8px 8px 0;
  line-height: 1.8;
}

/* ──────────── Utility ──────────── */
.text-muted { color: var(--gray-500); }
.text-small { font-size: 0.83rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }

/* ──────────── Responsive ──────────── */
/* ──────────── Tablet ──────────── */
@media (max-width: 768px) {
  .hero {
    padding: 2.8rem 1.5rem 2.2rem;
    border-radius: 0 0 12px 12px;
  }

  .hero h1 {
    font-size: 1.4rem;
  }

  section {
    padding: 2rem 0;
  }

  .plan-card,
  .review-example {
    padding: 1.2rem;
  }

  .review-example blockquote {
    padding-left: 0.8rem;
    font-size: 0.85rem;
  }
}

/* ──────────── Mobile ──────────── */
@media (max-width: 600px) {
  .container {
    padding: 0 1rem;
  }

  /* Header: stack logo and nav */
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 1rem 0;
  }

  header nav {
    gap: 0.8rem;
    flex-wrap: wrap;
  }

  /* Hero */
  .hero {
    margin: 0 -1rem;
    padding: 2rem 1.2rem 1.8rem;
    border-radius: 0 0 10px 10px;
  }

  .hero h1 {
    font-size: 1.2rem;
    line-height: 1.6;
  }

  .hero h1 br {
    display: none;
  }

  .hero .subcopy {
    font-size: 0.88rem;
  }

  .hero .status {
    font-size: 0.78rem;
    padding: 0.6rem 0.8rem;
  }

  .hero .status br {
    display: none;
  }

  /* CTA */
  .cta-links {
    flex-direction: column;
  }

  .cta-links a {
    text-align: center;
    padding: 0.7rem 1rem;
  }

  /* Sections */
  section {
    padding: 1.8rem 0;
  }

  section h2 {
    font-size: 1.05rem;
  }

  section h3 {
    font-size: 0.95rem;
  }

  /* Cards */
  .plan-card,
  .review-example {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
  }

  /* Review blockquotes */
  .review-example blockquote {
    padding-left: 0.7rem;
    margin: 0.6rem 0;
    font-size: 0.84rem;
    line-height: 1.7;
  }

  .review-example .point {
    font-size: 0.8rem;
    padding: 0.5rem 0.7rem;
  }

  /* Pipeline */
  .pipeline {
    font-size: 0.72rem;
    padding: 0.8rem;
    line-height: 1.6;
  }

  /* FAQ */
  .faq-item dt {
    font-size: 0.88rem;
  }

  .faq-item dd {
    font-size: 0.84rem;
  }

  /* Footer */
  footer {
    font-size: 0.75rem;
    padding: 1.5rem 0;
  }
}