/* ===== CSS Variables ===== */
:root {
  --color-cream: #FAF8F5;
  --color-cream-dark: #F0EDE8;
  --color-dusty-blue: #7A9AB5;
  --color-dusty-blue-light: #A8C4D9;
  --color-dusty-blue-dark: #5A7A95;
  --color-amber: #E8A04C;
  --color-amber-glow: #F5B968;
  --color-charcoal: #2C2C2C;
  --color-charcoal-light: #4A4A4A;
  --color-ribbon-black: #1A1A1A;
  --color-white: #FFFFFF;

  --font-display: 'Playfair Display', 'Cormorant Garamond', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-accent: 'Cormorant Garamond', serif;

  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 40px rgba(232, 160, 76, 0.3);

  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-cream);
  color: var(--color-charcoal);
  line-height: 1.8;
  font-weight: 300;
  overflow-x: hidden;
}

/* ===== Decorative Elements ===== */
.ribbon-decoration {
  position: absolute;
  width: 60px;
  height: 80px;
  pointer-events: none;
}

.ribbon-decoration::before,
.ribbon-decoration::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 40px;
  background: var(--color-ribbon-black);
  border-radius: 2px;
}

.ribbon-decoration::before {
  transform: rotate(-30deg);
  left: 10px;
}

.ribbon-decoration::after {
  transform: rotate(30deg);
  right: 10px;
}

/* ===== Navigation ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to bottom, var(--color-cream) 0%, transparent 100%);
  transition: var(--transition-smooth);
}

nav.scrolled {
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-charcoal);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-accent);
  font-size: 1rem;
  color: var(--color-charcoal-light);
  text-decoration: none;
  letter-spacing: 0.05em;
  position: relative;
  transition: var(--transition-smooth);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-amber);
  transition: var(--transition-smooth);
}

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

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

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.75rem;
  z-index: 1001;
  position: relative;
  width: 44px;
  height: 44px;
}

.hamburger-line {
  width: 24px;
  height: 3px;
  background-color: var(--color-charcoal);
  transition: var(--transition-smooth);
  border-radius: 2px;
  display: block;
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 2rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(168, 196, 217, 0.3) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(232, 160, 76, 0.15) 0%, transparent 40%),
    linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
}

/* Floating particles */
.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-amber-glow);
  border-radius: 50%;
  opacity: 0;
  animation: float-particle 8s infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 1s; }
.particle:nth-child(3) { left: 30%; animation-delay: 2s; }
.particle:nth-child(4) { left: 50%; animation-delay: 3s; }
.particle:nth-child(5) { left: 70%; animation-delay: 4s; }
.particle:nth-child(6) { left: 80%; animation-delay: 5s; }
.particle:nth-child(7) { left: 90%; animation-delay: 6s; }

@keyframes float-particle {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }
  10% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.8;
  }
  100% {
    opacity: 0;
    transform: translateY(-20vh) scale(1);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 6rem;
  max-width: 1200px;
}

.hero-avatar {
  position: relative;
  flex-shrink: 0;
}

.hero-avatar img {
  width: 350px;
  height: 350px;
  max-width: 90vw;
  border-radius: 50%;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
  animation: gentle-float 6s ease-in-out infinite;
  object-fit: cover;
}

@keyframes gentle-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.hero-avatar::before {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 40px;
  background: radial-gradient(ellipse, rgba(0,0,0,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-text {
  max-width: 500px;
}

.hero-subtitle {
  font-family: var(--font-accent);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-dusty-blue);
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.3s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.5s forwards;
}

.hero-title-jp {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--color-charcoal-light);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.7s forwards;
}

.hero-description {
  font-size: 1rem;
  color: var(--color-charcoal-light);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.9s forwards;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2rem;
  background: var(--color-ribbon-black);
  color: var(--color-white);
  text-decoration: none;
  font-family: var(--font-accent);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  border-radius: 2px;
  transition: var(--transition-smooth);
  opacity: 0;
  animation: fade-in-up 1s ease-out 1.1s forwards;
}

.hero-cta:hover {
  background: var(--color-charcoal);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.hero-cta svg {
  width: 16px;
  height: 16px;
  transition: var(--transition-smooth);
}

.hero-cta:hover svg {
  transform: translateX(4px);
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Section Base ===== */
section {
  padding: 8rem 2rem;
  position: relative;
}

.section-container {
  max-width: 1000px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-number {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-amber);
  letter-spacing: 0.3em;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--color-ribbon-black);
}

/* ===== About Section ===== */
#about {
  background: var(--color-white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  margin-bottom: 1.5rem;
  text-align: justify;
}

.about-text a {
  color: var(--color-dusty-blue-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-amber);
  padding-bottom: 2px;
  transition: var(--transition-smooth);
}

.about-text a:hover {
  color: var(--color-amber);
  border-bottom-color: var(--color-dusty-blue-dark);
}

.about-concept {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--color-dusty-blue-dark);
  text-align: center;
  padding: 2rem;
  border-left: 2px solid var(--color-amber);
  background: linear-gradient(90deg, rgba(232, 160, 76, 0.05) 0%, transparent 100%);
}

.special-skills {
  background: linear-gradient(135deg, rgba(140, 160, 180, 0.1) 0%, rgba(232, 160, 76, 0.08) 100%);
  border: 1px solid rgba(140, 160, 180, 0.3);
  border-radius: 4px;
  padding: 2rem;
  margin-top: 2rem;
}

.skills-title {
  font-family: var(--font-accent);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-amber);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skills-title::before {
  content: '◆';
  font-size: 0.7rem;
}

.skills-description {
  color: var(--color-charcoal-light);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

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

.skills-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
  color: var(--color-charcoal);
}

.skills-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  background: var(--color-amber);
  border-radius: 50%;
}

.skills-list li:last-child {
  margin-bottom: 0;
}

.vocal-range {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background: rgba(232, 160, 76, 0.1);
  border-left: 2px solid var(--color-amber);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-charcoal);
}

/* ===== Works Section ===== */
#works {
  background: linear-gradient(180deg, var(--color-cream-dark) 0%, var(--color-cream) 100%);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.work-card {
  background: var(--color-white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.work-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
}

.work-thumbnail {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-dusty-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.work-thumbnail::before {
  content: '♪';
  font-size: 3rem;
  color: var(--color-white);
  opacity: 0.5;
}

.work-thumbnail iframe {
  width: 100%;
  height: 100%;
  border: none;
  position: absolute;
  top: 0;
  left: 0;
}

.work-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
}

.work-info {
  padding: 1.5rem;
}

.work-category {
  font-family: var(--font-accent);
  font-size: 0.8rem;
  font-style: italic;
  color: var(--color-amber);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.work-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.work-description {
  font-size: 0.9rem;
  color: var(--color-charcoal-light);
}

.works-more {
  text-align: center;
  margin-top: 3rem;
}

.works-more a,
.works-more span {
  font-family: var(--font-accent);
  font-style: italic;
  color: var(--color-dusty-blue-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-dusty-blue-light);
  padding-bottom: 2px;
  transition: var(--transition-smooth);
}

.works-more a:hover {
  color: var(--color-amber);
  border-color: var(--color-amber);
}

/* ===== Recording Environment Section ===== */
#recording {
  background: var(--color-charcoal);
  color: var(--color-cream);
}

#recording .section-title {
  color: var(--color-cream);
}

#recording .section-title::after {
  background: var(--color-amber);
}

#recording .section-number {
  color: var(--color-amber-glow);
}

.recording-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.recording-description {
  color: rgba(250, 248, 245, 0.85);
}

.recording-description p {
  margin-bottom: 1.5rem;
}

.voice-types {
  margin: 2rem 0;
  padding: 1.5rem;
  background: rgba(232, 160, 76, 0.1);
  border-radius: 4px;
  border-left: 3px solid var(--color-amber);
}

.voice-types-title {
  font-family: var(--font-accent);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-amber-glow);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.voice-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.voice-tag {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-cream);
  transition: var(--transition-smooth);
}

.voice-tag:hover {
  background: var(--color-amber);
  border-color: var(--color-amber);
  color: var(--color-charcoal);
}

.recording-quality {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.quality-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(232, 160, 76, 0.15);
  border: 1px solid var(--color-amber);
  border-radius: 2px;
  font-family: var(--font-accent);
  font-size: 0.85rem;
  color: var(--color-amber-glow);
}

.equipment-list {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  padding: 2rem;
}

.equipment-category {
  margin-bottom: 2rem;
}

.equipment-category:last-child {
  margin-bottom: 0;
}

.equipment-category-title {
  font-family: var(--font-accent);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-amber);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(232, 160, 76, 0.3);
}

.equipment-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.equipment-item:last-child {
  border-bottom: none;
}

.equipment-name {
  font-family: var(--font-accent);
  font-size: 0.9rem;
  font-weight: 300;
  color: rgba(250, 248, 245, 0.6);
}

.equipment-model {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-cream);
}

@media (max-width: 900px) {
  .recording-content {
    grid-template-columns: 1fr;
  }
}

/* ===== Links Section ===== */
#links {
  background: var(--color-white);
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--color-cream);
  border: 1px solid var(--color-cream-dark);
  border-radius: 4px;
  text-decoration: none;
  color: var(--color-charcoal);
  transition: var(--transition-smooth);
}

.link-card:hover {
  background: var(--color-ribbon-black);
  color: var(--color-white);
  border-color: var(--color-ribbon-black);
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.link-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: 50%;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.link-card:hover .link-icon {
  background: var(--color-amber);
}

.link-icon svg {
  width: 20px;
  height: 20px;
}

.link-text {
  font-family: var(--font-accent);
  font-size: 1rem;
  letter-spacing: 0.05em;
}

/* ===== Contact Section ===== */
#contact {
  background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-dusty-blue-light) 100%);
  text-align: center;
}

.contact-message {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--color-charcoal-light);
  margin-bottom: 2rem;
}

.contact-email {
  font-family: var(--font-accent);
  font-size: 1.5rem;
  color: var(--color-charcoal);
  text-decoration: none;
  border-bottom: 2px solid var(--color-amber);
  padding-bottom: 4px;
  transition: var(--transition-smooth);
}

.contact-email:hover {
  color: var(--color-amber);
}

/* ===== Footer ===== */
footer {
  background: var(--color-ribbon-black);
  color: var(--color-cream);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.footer-copyright {
  font-size: 0.85rem;
  color: rgba(250, 248, 245, 0.6);
}

/* ===== Scroll Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
    gap: 3rem;
  }

  .hero-avatar img {
    width: 280px;
  }

  .hero-title {
    font-size: 3rem;
  }

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

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  nav {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    gap: 1.5rem;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  /* Navigation - Mobile */
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  /* Hamburger Menu - Mobile */
  .hamburger {
    display: flex !important;
    order: 2;
  }

  .nav-logo {
    order: 1;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 80%;
    max-width: 300px;
    background: rgba(250, 248, 245, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    font-size: 1.25rem;
    display: block;
    padding: 0.75rem;
  }
}