/* =====================================================
   TANAKA KAZONDA · PORTFOLIO
   Professional · Glass hero · Comprehensive
   ===================================================== */

:root {
  --abyss:      #060c1f;
  --midnight:   #0a1430;
  --deep:       #0e1a40;
  --surface:    #131e44;
  --surface-2:  #1a2a52;

  --ink:        #f4ecd8;
  --ink-soft:   rgba(244, 236, 216, 0.78);
  --ink-mute:   rgba(244, 236, 216, 0.55);

  --accent:     #d4a574;
  --accent-br:  #e8c089;

  --line:       rgba(244, 236, 216, 0.14);
  --line-soft:  rgba(244, 236, 216, 0.07);

  --serif: 'Instrument Serif', 'Times New Roman', serif;
  --sans:  'Manrope', system-ui, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, monospace;

  --maxw: 1280px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--ink);
  background: var(--midnight);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
}

/* page background gradient (subtle) */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(26, 42, 82, 0.5) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(14, 26, 64, 0.6) 0%, transparent 60%),
    linear-gradient(180deg, var(--abyss) 0%, var(--midnight) 50%, var(--deep) 100%);
  pointer-events: none;
}

/* =====================================================
   NAV
===================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem var(--gutter);
  background: rgba(10, 20, 48, 0.6);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--line-soft);
}
.nav-logo {
  font-family: var(--serif);
  font-size: 1.4rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.nav-links { display: flex; gap: 2.25rem; }
.nav-links a {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: 0.01em;
  position: relative;
  padding: 4px 0;
  transition: color 0.25s;
}
.nav-links a::after {
  content: ''; position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--accent-br); }
.nav-links a:hover::after { width: 100%; }

/* =====================================================
   HERO with glass over NDVI gif
===================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 7rem var(--gutter) 3rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero-bg-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.95;
}
.hero-bg-tint {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(10, 20, 48, 0.18) 0%, rgba(10, 20, 48, 0.42) 70%),
    linear-gradient(180deg, rgba(10, 20, 48, 0.12) 0%, rgba(6, 12, 31, 0.5) 100%);
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: stretch;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
}

/* GLASS BASE */
.glass {
  position: relative;
  background: rgba(20, 32, 64, 0.40);
  backdrop-filter: blur(32px) saturate(170%);
  -webkit-backdrop-filter: blur(32px) saturate(170%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 28px;
  box-shadow:
    0 30px 70px -18px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
  overflow: hidden;
}
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.10) 0%,
    rgba(255, 255, 255, 0) 40%,
    rgba(255, 255, 255, 0) 60%,
    rgba(255, 255, 255, 0.04) 100%
  );
  pointer-events: none;
  z-index: 0;
}
.glass > * { position: relative; z-index: 1; }

.hero-main {
  padding: clamp(1.75rem, 3.5vw, 3rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--accent-br);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5.2vw, 4.6rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.022em;
  color: var(--ink);
  margin-bottom: 1.75rem;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.4);
}
.hero-lede {
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  color: var(--ink-soft);
  margin-bottom: 2rem;
  line-height: 1.65;
  max-width: 60ch;
  font-weight: 400;
}
.hero-cta {
  display: flex; gap: 0.85rem; flex-wrap: wrap;
}
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.87rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.85rem 1.5rem;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--ink);
  color: var(--abyss);
}
.btn-primary:hover {
  background: var(--accent-br);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -8px rgba(232, 192, 137, 0.4);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  border-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
}

/* portrait card */
.hero-portrait {
  padding: 1rem;
  display: flex;
  align-items: stretch;
  min-height: 380px;
}
.hero-portrait img {
  width: 100%;
  flex: 1;
  object-fit: cover;
  border-radius: 14px;
  filter: contrast(1.04) saturate(0.97);
}

/* hero meta strip */
.hero-meta {
  position: relative;
  z-index: 2;
  margin: 2rem auto 0;
  max-width: var(--maxw);
  width: 100%;
  padding: 1.5rem clamp(1.25rem, 2.5vw, 2rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.meta-item {
  display: flex; flex-direction: column;
  gap: 0.35rem;
}
.meta-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-mute);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.meta-value {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--ink);
  line-height: 1.35;
}

/* =====================================================
   SECTION SHARED
===================================================== */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 6rem var(--gutter) 4rem;
  position: relative;
  z-index: 2;
}
.section-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}
.section-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.15em;
}
.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}
.section-rule {
  flex: 1;
  height: 1px;
  background: var(--line);
  min-width: 60px;
}
.section-intro {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 2.5rem;
  max-width: 60ch;
}

/* =====================================================
   ABOUT
===================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.about-prose { color: var(--ink-soft); }
.about-prose p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.75;
}
.about-prose strong { color: var(--ink); font-weight: 600; }
.lead-para {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 1.85vw, 1.6rem);
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 1.75rem !important;
  font-weight: 400;
}
.about-side {
  position: sticky;
  top: 6rem;
  display: flex; flex-direction: column;
  gap: 1rem;
}
.info-card {
  padding: 1.25rem 1.4rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.info-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  font-weight: 500;
}
.info-body {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.96rem;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.info-sub {
  font-family: var(--sans);
  font-size: 0.84rem;
  color: var(--ink-mute);
  line-height: 1.4;
}

/* =====================================================
   CV (Experience + Education)
===================================================== */
.cv-block { }
.cv-entry {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.cv-entry:last-child { border-bottom: none; }
.cv-meta {
  display: flex; flex-direction: column;
  gap: 0.4rem;
}
.cv-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.cv-place {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
}
.cv-body h4 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
  color: var(--ink);
  line-height: 1.25;
}
.cv-org {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.96rem;
  color: var(--ink-soft);
  margin-bottom: 0.85rem;
}
.cv-body p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.65;
}
.cv-body ul {
  list-style: none;
  margin-top: 0.6rem;
}
.cv-body ul li {
  padding: 0.3rem 0 0.3rem 1.3rem;
  font-size: 0.93rem;
  color: var(--ink-soft);
  position: relative;
  line-height: 1.6;
}
.cv-body ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.85rem;
  width: 6px; height: 1px;
  background: var(--accent);
}

/* skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}
.skill-group h5 {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 500;
}
.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tag-list li {
  font-family: var(--sans);
  font-size: 0.82rem;
  padding: 0.4rem 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 8px;
  transition: all 0.25s;
}
.tag-list li:hover {
  background: var(--accent);
  color: var(--abyss);
  border-color: var(--accent);
}

/* =====================================================
   PROJECTS
===================================================== */
.project {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  margin-bottom: 6rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line-soft);
}
.project:last-child { border-bottom: none; margin-bottom: 0; }
.project.reverse {
  grid-template-columns: 1.15fr 1fr;
}
.project.reverse .project-info { order: 2; }
.project.reverse .project-visuals { order: 1; }

.project-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.project-title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 0.6rem;
  letter-spacing: -0.015em;
}
.project-period {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-mute);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}
.project-desc {
  font-size: 0.98rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}
.project-tools {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.5rem;
}
.project-tools li {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 6px;
  letter-spacing: 0.03em;
}

.project-visuals {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.project-image {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.6);
  transition: transform 0.4s ease;
}
.project-image:hover { transform: translateY(-3px); }
.project-image img {
  width: 100%;
  display: block;
}
.project-image figcaption {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  padding: 0.75rem 1rem;
  background: rgba(6, 12, 31, 0.6);
  border-top: 1px solid var(--line-soft);
}

/* =====================================================
   OTHER PROJECTS
===================================================== */
.other-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.other-tile {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.35s ease;
}
.other-tile:hover {
  transform: translateY(-4px);
  border-color: rgba(244, 236, 216, 0.22);
  background: rgba(255, 255, 255, 0.05);
}
.other-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--surface);
}
.other-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.other-tile:hover .other-image img { transform: scale(1.04); }
.other-tile figcaption {
  padding: 1.25rem 1.4rem 1.5rem;
}
.other-tile h4 {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.other-tile p {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin-bottom: 0.85rem;
}
.other-tools {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-mute);
  letter-spacing: 0.03em;
}

/* =====================================================
   CONTACT
===================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.contact-pitch h3 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 3.2vw, 2.5rem);
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 1rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.contact-pitch p {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.65;
  max-width: 45ch;
}
.contact-lines { display: flex; flex-direction: column; }
.contact-line {
  display: grid;
  grid-template-columns: 100px 1fr 30px;
  align-items: center;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: all 0.3s ease;
}
.contact-line:not(.static):hover {
  padding-left: 0.6rem;
  border-bottom-color: var(--accent);
}
.contact-line:not(.static):hover .line-arrow {
  color: var(--accent);
  transform: translateX(6px);
}
.line-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.line-value {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1rem;
  color: var(--ink);
}
.line-arrow {
  color: var(--ink-mute);
  transition: all 0.3s ease;
  text-align: right;
}

/* =====================================================
   FOOTER
===================================================== */
.footer {
  margin-top: 4rem;
  padding: 2.2rem var(--gutter);
  border-top: 1px solid var(--line);
  background: var(--abyss);
  color: var(--ink-soft);
  position: relative;
  z-index: 2;
}
.footer-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.footer-mark {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--ink);
}
.footer-year {
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.7;
  letter-spacing: 0.04em;
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 960px) {
  .nav { padding: 1rem var(--gutter); }
  .nav-links { gap: 1.2rem; }
  .nav-links a { font-size: 0.78rem; }

  .hero { min-height: auto; padding-top: 6rem; }
  .hero-container { grid-template-columns: 1fr; gap: 1.25rem; }
  .hero-portrait { max-height: 420px; }
  .hero-meta { grid-template-columns: repeat(2, 1fr); }

  .about-grid { grid-template-columns: 1fr; }
  .about-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .about-side > * { flex: 1; min-width: 200px; }

  .cv-entry { grid-template-columns: 1fr; gap: 0.5rem; }
  .cv-meta { flex-direction: row; gap: 1rem; }

  .project, .project.reverse {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .project.reverse .project-info { order: 1; }
  .project.reverse .project-visuals { order: 2; }

  .contact-grid { grid-template-columns: 1fr; }
  .contact-line { grid-template-columns: 80px 1fr 20px; padding: 1rem 0; }

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

@media (max-width: 540px) {
  .nav-links { display: none; }
  .section { padding: 4rem var(--gutter) 2.5rem; }
  .section-header { margin-bottom: 2rem; gap: 1rem; }
  .hero-title { font-size: clamp(2rem, 9vw, 3rem); }
  .hero-meta { grid-template-columns: 1fr; }
}