/* ========================================
   SEIREI.DEV - Main Stylesheet
   Colors: bg #222323, text #f0f6f0
   ======================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #222323;
  --bg-light: #2a2b2b;
  --bg-card: #2e2f2f;
  --text: #f0f6f0;
  --text-muted: #a0a6a0;
  --accent: #88b4d8;
  --accent-hover: #a0c8e8;
  --border: #3a3b3b;
  --font-main: 'Segoe UI', 'Noto Sans JP', system-ui, -apple-system, sans-serif;
  --font-heading: 'Segoe UI', 'Noto Sans JP', system-ui, -apple-system, sans-serif;
  --max-width: 1100px;
  --transition: 0.3s ease;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-hover);
}

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

ul {
  list-style: none;
}

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin-top: 0.5rem;
}

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

.text-muted {
  color: var(--text-muted);
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(34, 35, 35, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--accent);
}

.lang-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
}

.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Mobile menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.5rem;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all var(--transition);
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at center, rgba(136, 180, 216, 0.06) 0%, transparent 65%), #1a1b1b;
}

#hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 1;
}

.hero-logo {
  max-width: 500px;
  margin: 0 auto 2rem;
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-cta {
  display: inline-flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-main);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--bg);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
  z-index: 1;
}

.scroll-indicator svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-muted);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* --- Featured Game Card --- */
.game-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.game-card-image {
  width: 100%;
  height: 250px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  border-bottom: 1px solid var(--border);
}

.game-card-body {
  padding: 2rem;
}

.game-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.game-card-hook {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.game-card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tag {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- About Preview (Home) --- */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-preview-text h2 {
  margin-bottom: 1rem;
}

.about-preview-text p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* --- About Page --- */
.profile-card {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  align-items: start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
}

.profile-photo {
  width: 250px;
  height: 250px;
  border-radius: 12px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border);
  overflow: hidden;
}

.profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-name {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.profile-role {
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.profile-bio p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* --- Game Page (Kanji Cooking) --- */
.game-hero {
  padding: 8rem 0 4rem;
  text-align: center;
}

.game-hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.game-hero .hook {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.store-badges {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  color: var(--text);
  font-weight: 500;
  transition: all var(--transition);
}

.store-badge:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.store-badge svg {
  width: 24px;
  height: 24px;
}

.game-screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.screenshot-placeholder {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* --- Blog / Devlog --- */
.blog-list {
  display: grid;
  gap: 1.5rem;
}

.blog-post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-post-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.blog-post-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.blog-post-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.blog-post-excerpt {
  color: var(--text-muted);
}

.blog-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.blog-empty p {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

/* --- Contact Form --- */

.contact-info h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
}

.contact-detail svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent);
  flex-shrink: 0;
}

/* --- Press Kit --- */
.press-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.press-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
}

.press-card h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.press-card p,
.press-card li {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.press-card ul {
  padding-left: 0;
}

.press-card ul li {
  padding: 0.25rem 0;
}

.press-downloads {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* --- Privacy Policy --- */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
}

.legal-content h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.75rem;
}

.legal-content p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.legal-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content ul li {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  list-style: disc;
}

/* --- Social Links --- */
.social-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.social-links a:hover {
  border-color: var(--accent);
  background: rgba(136, 180, 216, 0.1);
}

.social-links a svg {
  width: 20px;
  height: 20px;
  fill: var(--text);
  transition: fill var(--transition);
}

.social-links a:hover svg {
  fill: var(--accent);
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand img {
  height: 35px;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.footer-nav h4,
.footer-social h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-nav a,
.footer-social a {
  display: block;
  color: var(--text-muted);
  padding: 0.25rem 0;
  font-size: 0.9rem;
}

.footer-nav a:hover,
.footer-social a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-muted);
}

.footer-bottom a:hover {
  color: var(--accent);
}

/* --- Page Header (non-home pages) --- */
.page-header {
  padding: 8rem 0 3rem;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-top: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-logo {
    max-width: 300px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .about-preview {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-photo {
    margin: 0 auto;
  }


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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .game-hero h1 {
    font-size: 2rem;
  }

  .section {
    padding: 3rem 0;
  }

  .page-header {
    padding: 6rem 0 2rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .hero-logo {
    max-width: 250px;
  }

  .container {
    padding: 0 1.25rem;
  }
}