/* ============================
   みゃラボ — Minimal Design System
   ============================ */

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

:root {
  /* Colors — Clean White + Blue Accent */
  --c-bg: #FFFFFF;
  --c-bg-alt: #F8F9FA;
  --c-surface: #FFFFFF;
  --c-text: #202124;
  --c-text-secondary: #5F6368;
  --c-text-muted: #9AA0A6;
  --c-accent: #1A73E8;
  --c-accent-light: #E8F0FE;
  --c-accent-dark: #1557B0;
  --c-border: #E8EAED;
  --c-shadow: rgba(60, 64, 67, 0.08);
  --c-shadow-hover: rgba(60, 64, 67, 0.15);

  /* Typography */
  --ff-body: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ff-heading: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-full: 9999px;

  /* Transitions */
  --t-fast: 0.15s ease;
  --t-normal: 0.25s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  font-family: var(--ff-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow var(--t-normal);
}

.nav.scrolled {
  box-shadow: 0 1px 6px var(--c-shadow);
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-logo {
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--c-text);
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-text-secondary);
  transition: color var(--t-fast);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-text);
  border-radius: var(--r-full);
  transition: transform var(--t-normal), opacity var(--t-fast);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-3xl) var(--space-lg);
}

.hero-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-greeting {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-name {
  font-family: var(--ff-heading);
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--c-text);
}

.hero-tagline {
  font-size: 1rem;
  color: var(--c-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 5px 14px;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--r-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--c-text-secondary);
  transition: all var(--t-normal);
}

.badge:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  transform: translateY(-1px);
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 24px;
  border-radius: var(--r-full);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--t-normal);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--c-accent-dark);
  box-shadow: 0 2px 8px rgba(26, 115, 232, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--c-text-secondary);
  border: 1px solid var(--c-border);
}

.btn-ghost:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

/* Floating emojis */
.hero-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.floating-emoji {
  position: absolute;
  left: var(--x);
  top: var(--y);
  font-size: 1.6rem;
  animation: float 6s ease-in-out infinite;
  animation-delay: var(--delay);
  opacity: 0.25;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }

  25% {
    transform: translateY(-12px) rotate(4deg);
  }

  75% {
    transform: translateY(8px) rotate(-2deg);
  }
}

/* --- Sections --- */
.section {
  padding: var(--space-3xl) var(--space-lg);
}

.section-alt {
  background: var(--c-bg-alt);
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--ff-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--c-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-2xl);
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about-card {
  padding: var(--space-lg) 0;
}

.about-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--space-md);
  border: 3px solid var(--c-border);
  box-shadow: 0 4px 12px var(--c-shadow);
}

.about-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.about-subtitle {
  color: var(--c-accent);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

.about-text {
  color: var(--c-text-secondary);
  font-size: 0.875rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.about-hobbies {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  margin: 0;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  transition: all var(--t-normal);
}

.highlight-item:hover {
  border-color: var(--c-accent);
  box-shadow: 0 2px 8px var(--c-shadow);
}

.highlight-emoji {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.highlight-item strong {
  font-size: 0.875rem;
  display: block;
}

.highlight-item p {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}

/* --- Projects --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.project-card {
  display: block;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--space-lg);
  transition: all var(--t-normal);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.project-card:hover {
  border-color: var(--c-accent);
  box-shadow: 0 4px 12px var(--c-shadow);
  transform: translateY(-2px);
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
}

.project-emoji {
  font-size: 1.5rem;
}

.project-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  object-fit: cover;
}

.project-status {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--r-full);
}

.status-live {
  background: #E6F4EA;
  color: #137333;
}

.status-dev {
  background: var(--c-accent-light);
  color: var(--c-accent);
}

.status-beta {
  background: #FEF7E0;
  color: #B06000;
}

.status-archive {
  background: var(--c-bg-alt);
  color: var(--c-text-muted);
}

.project-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.project-desc {
  font-size: 0.8125rem;
  color: var(--c-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--c-bg-alt);
  border-radius: var(--r-full);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--c-text-secondary);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-accent);
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--c-border);
}

.past-projects-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text-muted);
  margin-bottom: var(--space-md);
}

/* --- Skills --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.skill-category {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--space-lg);
}

.skill-category h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--c-text);
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.skill-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--c-text-secondary);
  padding: 6px var(--space-sm);
  border-radius: var(--r-sm);
  transition: background var(--t-fast);
}

.skill-item:hover {
  background: var(--c-bg-alt);
}

.skill-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

img.skill-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

/* Work experience summary */
.work-summary {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--space-xl);
}

.work-summary h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.work-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.work-list-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.work-list-item .emoji {
  font-size: 1.25rem;
  flex-shrink: 0;
  line-height: 1.5;
}

.work-list-item strong {
  font-size: 0.875rem;
  display: block;
  margin-bottom: 2px;
}

.work-list-item p {
  font-size: 0.8125rem;
  color: var(--c-text-secondary);
}

.work-more-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-accent);
}

.work-more-link:hover {
  text-decoration: underline;
}

/* --- Writing --- */
.writing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.writing-card {
  display: block;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--space-lg);
  transition: all var(--t-normal);
}

.writing-card:hover {
  border-color: var(--c-accent);
  box-shadow: 0 4px 12px var(--c-shadow);
}

.writing-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.writing-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.writing-card p {
  font-size: 0.8125rem;
  color: var(--c-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.writing-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-accent);
}

/* --- Support --- */
.support-card {
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  max-width: 640px;
  margin: 0 auto;
}

.support-story {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--c-border);
}

.support-emoji {
  font-size: 2rem;
  flex-shrink: 0;
}

.support-story-text h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.support-story-text p {
  font-size: 0.8125rem;
  color: var(--c-text-secondary);
  line-height: 1.8;
}

.support-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.support-link-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border);
  transition: all var(--t-normal);
}

.support-link-card:hover {
  border-color: var(--c-accent);
  box-shadow: 0 2px 8px var(--c-shadow);
  transform: translateX(4px);
}

.support-link-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.support-link-card strong {
  font-size: 0.875rem;
  display: block;
  margin-bottom: 1px;
}

.support-link-card p {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  margin: 0;
}

.support-arrow {
  margin-left: auto;
  font-size: 1rem;
  color: var(--c-text-muted);
  transition: transform var(--t-fast);
  flex-shrink: 0;
}

.support-link-card:hover .support-arrow {
  transform: translateX(4px);
  color: var(--c-accent);
}

/* --- Contact --- */
.contact-grid {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-full);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--t-normal);
}

.contact-card:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.contact-emoji {
  font-size: 1.2rem;
}

/* --- Footer --- */
.footer {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border-top: 1px solid var(--c-border);
}

.footer-logo {
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: var(--space-xs);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.delay-1 {
  transition-delay: 0.1s;
}

.delay-2 {
  transition-delay: 0.2s;
}

.delay-3 {
  transition-delay: 0.3s;
}

.delay-4 {
  transition-delay: 0.4s;
}

/* ================================
   Detail Pages (apps, works)
   ================================ */

.detail-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 120px var(--space-lg) var(--space-3xl);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-text-secondary);
  margin-bottom: var(--space-xl);
  transition: color var(--t-fast);
}

.back-link:hover {
  color: var(--c-accent);
}

.detail-header {
  margin-bottom: var(--space-xl);
}

.detail-header .emoji {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.detail-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--r-md);
  object-fit: cover;
  margin-bottom: var(--space-md);
}

.detail-header h1 {
  font-family: var(--ff-heading);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.detail-header .subtitle {
  font-size: 0.9375rem;
  color: var(--c-text-secondary);
  line-height: 1.7;
}

.detail-section {
  margin-bottom: var(--space-xl);
}

.detail-section h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--c-text);
}

.detail-section p,
.detail-section li {
  font-size: 0.875rem;
  color: var(--c-text-secondary);
  line-height: 1.8;
}

.detail-section ul {
  list-style: none;
  padding: 0;
}

.detail-section li {
  padding-left: 1.2em;
  position: relative;
  margin-bottom: var(--space-sm);
}

.detail-section li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--c-text-muted);
}

.detail-section a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity var(--t-fast);
}

.detail-section a:hover {
  opacity: 0.7;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.detail-tag {
  padding: 4px 12px;
  background: var(--c-accent-light);
  color: var(--c-accent);
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.detail-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.detail-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-accent);
  transition: opacity var(--t-fast);
}

.detail-link:hover {
  opacity: 0.7;
}

.placeholder-image {
  width: 100%;
  height: 240px;
  background: var(--c-bg-alt);
  border: 1px dashed var(--c-border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-muted);
  font-size: 0.8125rem;
  margin-bottom: var(--space-xl);
}

/* Info table for works detail */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
}

.info-table th,
.info-table td {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--c-border);
}

.info-table th {
  font-weight: 600;
  color: var(--c-text);
  width: 140px;
}

.info-table td {
  color: var(--c-text-secondary);
}

/* Works detail sections */
.work-detail-card {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.work-detail-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.work-detail-card .role {
  font-size: 0.75rem;
  color: var(--c-accent);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.work-section-divider {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
  margin-top: var(--space-xl);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--c-border);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--c-border);
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: var(--space-2xl) var(--space-lg);
    min-height: auto;
    padding-top: 100px;
  }

  .hero-name {
    font-size: 2.2rem;
  }

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

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

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

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

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

  .support-story {
    flex-direction: column;
    text-align: center;
  }

  .section {
    padding: var(--space-2xl) var(--space-md);
  }

  .detail-page {
    padding: 80px var(--space-md) var(--space-2xl);
  }
}

@media (max-width: 480px) {
  .hero-badges {
    gap: 6px;
  }

  .badge {
    font-size: 0.75rem;
    padding: 4px 10px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}