/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent:       #C8184A;
  --accent-dim:   #9e1239;
  --accent-glow:  rgba(200, 24, 74, 0.25);
  --bg:           #0a0a0b;
  --bg-alt:       #0f0f11;
  --surface:      rgba(255,255,255,0.04);
  --surface-hover:rgba(255,255,255,0.07);
  --border:       rgba(255,255,255,0.08);
  --border-accent:rgba(200,24,74,0.4);
  --text-primary: #f0ece8;
  --text-secondary:#9d9896;
  --text-dim:     #5a5856;
  --font:         'Noto Sans JP', sans-serif;
  --nav-h:        72px;
  --radius:       12px;
  --radius-lg:    20px;
  --transition:   0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  background-image: url('PORTFOLIO_26.png');
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(8,8,10,0.88);
  pointer-events: none;
  z-index: 0;
}

.container {
  position: relative;
  width: min(1160px, 92vw);
  margin-inline: auto;
}

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

/* ===== NAV ===== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

#navbar.scrolled {
  background: rgba(8,8,10,0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1160px, 92vw);
  margin-inline: auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.nav-title {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.nav-links a.nav-cta {
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  transition: background var(--transition), color var(--transition);
}

.nav-links a.nav-cta:hover {
  background: var(--accent);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(200,24,74,0.06) 0%, transparent 60%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  width: min(1160px, 92vw);
  margin-inline: auto;
  padding: 80px 0 100px;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 28px;
}

.hero-headline .accent { color: var(--accent); }

.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: 44px;
  font-weight: 300;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.4;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-secondary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 2px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow);
}

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

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

.btn-steam {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid var(--accent);
  color: var(--accent);
  transition: all var(--transition);
  margin-top: 12px;
}

.btn-steam:hover {
  background: var(--accent);
  color: #fff;
}

/* ===== SECTION BASE ===== */
.section {
  position: relative;
  padding: 100px 0;
  z-index: 1;
}

.section-dark {
  background: rgba(0,0,0,0.4);
}

.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 0.9rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 56px;
  margin-top: -4px;
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-accent);
  box-shadow: 0 0 40px rgba(200,24,74,0.08);
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 56px;
}

.about-avatar-wrap {
  position: relative;
}

.avatar-frame {
  width: 260px;
  height: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border-accent);
  box-shadow: 0 0 60px rgba(200,24,74,0.15);
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
}

.avatar-badge {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 80px;
  height: 80px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--bg);
}

.badge-num {
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
  color: #fff;
}

.badge-label {
  font-size: 0.55rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  text-align: center;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.about-body {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 36px;
  font-weight: 300;
}

.edu-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px 28px;
}

.edu-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.edu-degree {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.edu-institution {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 6px;
  font-weight: 600;
}

.edu-year {
  color: var(--text-dim);
  font-weight: 400;
}

.edu-detail {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ===== EXPERIENCE ===== */
.timeline {
  margin-top: 56px;
  display: grid;
  gap: 24px;
}

.timeline-item {
  padding: 32px 36px;
}

.tl-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}

.tl-logo-wrap {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tl-logo-white {
  background: #fff;
}

.tl-logo-dark {
  background: #000;
}

.tl-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

.tl-role {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.tl-company {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 2px;
}

.tl-period {
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.tl-bullets {
  list-style: none;
  display: grid;
  gap: 12px;
  padding-left: 0;
}

.tl-bullets li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 20px;
  position: relative;
}

.tl-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.tl-bullets li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 28px;
  margin-top: 8px;
}

.project-card {
  overflow: hidden;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.video-wrap {
  position: relative;
  padding-top: 56.25%;
  width: 100%;
  background: #000;
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.project-info {
  padding: 24px 28px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
  flex: 1;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 56px;
  margin-bottom: 40px;
}

.skill-card {
  padding: 28px 24px;
  text-align: left;
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.skill-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.skill-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 300;
}

.tools-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.tool-pill {
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1px solid var(--border-accent);
  color: var(--accent);
  background: rgba(200,24,74,0.06);
  transition: background var(--transition), color var(--transition);
}

.tool-pill:hover {
  background: var(--accent);
  color: #fff;
}

/* ===== CONTACT ===== */
.contact-container {
  text-align: center;
}

.contact-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-inline: auto;
  margin-top: 12px;
  margin-bottom: 56px;
  font-weight: 300;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 28px 32px;
  text-decoration: none;
  min-width: 160px;
  flex: 1 1 160px;
  max-width: 220px;
  cursor: pointer;
  transition: all var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
}

.contact-location {
  cursor: default;
}

.contact-icon {
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.contact-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.contact-val {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
  word-break: break-all;
  text-align: center;
}

.contact-card:not(.contact-location):hover .contact-val {
  color: var(--accent);
}

.nav-logo-fallback {
  display: none;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.02em;
  align-items: center;
}

/* ===== SOCIAL MEDIA SUBSECTION ===== */
.social-subsection {
  margin-top: 72px;
  padding-top: 56px;
  border-top: 1px solid var(--border);
}

.sub-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.sub-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.sub-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 40px;
  max-width: 540px;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

/* Card is now a div, not an <a> */
.social-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
  transition: all var(--transition);
}

.social-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: 0 0 40px rgba(200,24,74,0.08);
}

/* Clickable preview thumbnail area */
.social-preview-link {
  display: block;
  text-decoration: none;
  flex-shrink: 0;
}

.social-preview-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 5;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: filter var(--transition);
}

.social-preview-link:hover .social-preview-thumb {
  filter: brightness(1.15);
}

.social-preview-play {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(200,24,74,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition);
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 20px rgba(200,24,74,0.4);
}

.social-preview-link:hover .social-preview-play {
  transform: scale(1.12);
  background: var(--accent);
}

.social-preview-label {
  position: absolute;
  bottom: 10px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.7);
  background: rgba(0,0,0,0.5);
  padding: 4px 10px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

/* Info area below thumbnail */
.social-card-body {
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.social-header-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.social-logo-wrap {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.social-logo-white { background: #fff; }
.social-logo-dark  { background: #000; }

.social-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.social-info { flex: 1; min-width: 0; }

.social-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.social-handle {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 3px;
}

.social-role {
  font-size: 0.73rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.social-tagline {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 300;
  font-style: italic;
  border-left: 2px solid var(--border-accent);
  padding-left: 10px;
}

.social-ig-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  text-decoration: none;
  width: fit-content;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.social-ig-badge:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200,24,74,0.06);
}

.social-card-footer-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.social-soon-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

/* remove old arrow since cards are no longer full <a> */
.social-arrow { display: none; }

.footer-logo-text {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.08em;
  opacity: 0.7;
}

/* ===== FOOTER ===== */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.6);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-logo {
  height: 28px;
  width: auto;
  object-fit: contain;
  opacity: 0.7;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-avatar-wrap {
    display: flex;
    justify-content: center;
  }

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

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
}

@media (max-width: 700px) {
  :root { --nav-h: 60px; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(8,8,10,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 32px 24px;
    gap: 24px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1), opacity 0.4s;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-toggle { display: flex; }

  .nav-links a { font-size: 1rem; }

  .section { padding: 72px 0; }

  .timeline-item { padding: 24px 20px; }

  .tl-header { flex-direction: column; align-items: flex-start; gap: 16px; }

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

  .contact-card { max-width: none; flex: 1 1 140px; padding: 20px 16px; }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}