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

:root {
  --black:  #111111;
  --white:  #FFFFFF;
  --cream:  #FFFBF5;
  --cream2: #FFF5E8;
  --border: #DEDAD4;
  --text:   #222222;
  --muted:  #444444;
  --dim:    #888888;
  --dot:    rgba(17,17,17,0.11);
  --poppins: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'Courier New', 'Lucida Console', monospace;
}

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

body {
  background: var(--cream);
  color: var(--text);
  font-family: var(--poppins);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--cream); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.5rem; height: 54px;
  background: rgba(255,251,245,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo { display: flex; align-items: center; gap: 9px; text-decoration: none; }
.nav-brand { font-family: var(--mono); font-size: 0.88rem; color: var(--black); }
.nav-dot   { color: var(--dim); }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
  font-family: var(--mono); font-size: 0.76rem;
  color: var(--dim); letter-spacing: 0.03em; transition: color 0.15s;
}
.nav-links a:hover { color: var(--black); }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--black); border-radius: 2px;
  transition: all 0.22s ease;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 26px; border-radius: 100px;
  font-size: 0.88rem; font-weight: 600; font-family: var(--poppins);
  cursor: pointer; border: none; text-decoration: none;
  transition: all 0.16s ease; letter-spacing: -0.01em;
}
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { opacity: 0.78; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--black); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--black); transform: translateY(-1px); }
.btn-sm { padding: 8px 20px; font-size: 0.82rem; margin-top: 1.2rem; width: fit-content; }

/* ===== PILLS ===== */
.pill {
  font-family: var(--mono); font-size: 0.72rem;
  padding: 5px 14px; border-radius: 100px;
  background: var(--black); color: var(--white); letter-spacing: 0.02em;
}
.pill-outline { background: transparent; color: var(--muted); border: 1px solid var(--border); }

/* ===== HERO ===== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 80px 2.5rem 5rem; background: var(--cream); overflow: hidden;
}

.hero-grid-bg {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--dot) 1.8px, transparent 1.8px);
  background-size: 22px 22px; pointer-events: none;
}

.corner { position: absolute; width: 32px; height: 32px; pointer-events: none; }
.corner-tl { top: 68px; left: 2rem; border-top: 1.5px solid var(--border); border-left: 1.5px solid var(--border); }
.corner-tr { top: 68px; right: 2rem; border-top: 1.5px solid var(--border); border-right: 1.5px solid var(--border); }
.corner-bl { bottom: 2rem; left: 2rem; border-bottom: 1.5px solid var(--border); border-left: 1.5px solid var(--border); }
.corner-br { bottom: 2rem; right: 2rem; border-bottom: 1.5px solid var(--border); border-right: 1.5px solid var(--border); }

.hero-inner {
  position: relative; z-index: 1; max-width: 760px; width: 100%;
  text-align: center; display: flex; flex-direction: column;
  align-items: center; gap: 1.5rem;
}

.hero-eyebrow { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 800;
  line-height: 1.08; letter-spacing: -0.045em; color: var(--black);
  font-family: var(--poppins);
}
.hero-title em { font-style: italic; }

.hero-sub {
  font-size: 1rem; color: var(--muted); max-width: 460px;
  line-height: 1.7; font-family: var(--poppins); font-weight: 400;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ===== BAND ===== */
.band { background: var(--black); padding: 1.4rem 2.5rem; width: 100%; }
.band-inner { max-width: 700px; margin: 0 auto; text-align: center; }
.band-text {
  font-size: 0.9rem; color: rgba(255,255,255,0.55);
  line-height: 1.8; font-family: var(--poppins); font-weight: 400;
}

/* ===== SECTIONS ===== */
.section { padding: 5rem 2.5rem; }
.section-inner { max-width: 1100px; margin: 0 auto; }

.section-tag {
  font-family: var(--mono); font-size: 0.68rem; color: var(--dim);
  letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 1.8rem;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800;
  letter-spacing: -0.04em; line-height: 1.1; margin-bottom: 0.6rem;
  font-family: var(--poppins);
}
.section-title em { font-style: italic; }

.section-sub {
  font-size: 0.95rem; color: var(--muted); margin-bottom: 2.5rem;
  max-width: 520px; font-family: var(--poppins); font-weight: 400;
}

.inline-link { color: var(--black); text-decoration: underline; text-underline-offset: 3px; }

.name-link {
  color: var(--black); text-decoration: underline;
  text-decoration-style: wavy; text-underline-offset: 5px;
  transition: opacity 0.15s;
}
.name-link:hover { opacity: 0.6; }

/* ===== CF + CLAUDE SECTION ===== */
.love-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.love-section::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--dot) 1.8px, transparent 1.8px);
  background-size: 22px 22px; pointer-events: none; opacity: 0.5;
}
.love-section .section-inner { position: relative; z-index: 1; }

/* ===== SLIDER ===== */
.slider-wrap {
  display: flex; height: 180px;
  border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  background: var(--cream);
}

.slider-panel {
  position: relative; flex: 0 0 50px; min-width: 50px;
  transition: flex 0.42s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer; border-right: 1px solid var(--border);
  overflow: hidden; outline: none;
}
.slider-panel:last-child { border-right: none; }
.slider-panel.active { flex: 1 1 0%; cursor: default; }

.slider-collapsed {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px; opacity: 1; transition: opacity 0.2s ease;
  pointer-events: none;
}
.slider-panel.active .slider-collapsed { opacity: 0; pointer-events: none; }

.slider-label {
  font-family: var(--mono); font-size: 0.65rem; color: var(--dim);
  letter-spacing: 0.08em; writing-mode: vertical-rl;
  text-orientation: mixed; transform: rotate(180deg);
}

.slider-content {
  position: absolute; inset: 0;
  padding: 20px 22px 18px;
  opacity: 0; transition: opacity 0.25s ease 0.08s;
  pointer-events: none;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.slider-panel.active .slider-content { opacity: 1; pointer-events: auto; }

.slider-corner {
  position: absolute; top: 0; left: 0;
  width: 20px; height: 20px;
  border-top: 2px solid var(--black); border-left: 2px solid var(--black);
  border-radius: 2px 0 0 0; pointer-events: none;
}

.slider-head {
  display: flex; align-items: center; gap: 11px; margin-bottom: 10px;
}

.slider-logo {
  width: 36px; height: 36px;
  border: 1px solid var(--border); border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  background: var(--white); flex-shrink: 0; overflow: hidden; padding: 5px;
}
.slider-logo img { width: 100%; height: 100%; object-fit: contain; }

.slider-head h3 {
  font-size: 1rem; font-weight: 700; letter-spacing: -0.02em;
  font-family: var(--poppins); line-height: 1;
}

.slider-desc {
  font-size: 0.86rem; color: var(--muted);
  line-height: 1.65; flex: 1;
  font-family: var(--poppins); font-weight: 400;
  text-align: justify; hyphens: auto; -webkit-hyphens: auto;
}

.slider-status {
  display: flex; align-items: center; gap: 8px;
  margin-top: 12px;
}

.status-jp {
  font-family: 'Noto Sans Kannada', sans-serif;
  font-weight: 500; font-size: 0.88rem; color: var(--text);
}

.status-en {
  font-family: var(--mono); font-size: 0.68rem; color: var(--dim);
}

/* ===== INTERN SECTION ===== */
.intern-section { background: var(--cream); border-bottom: 1px solid var(--border); }

.intern-tape {
  display: flex; flex-wrap: wrap;
  justify-content: center; gap: 20px;
  padding: 16px 0 8px;
}

.tape-item {
  flex: 0 0 calc(25% - 20px);
  min-width: 200px; max-width: 260px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 18px 16px 16px;
  position: relative;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
  box-shadow: 2px 3px 10px rgba(17,17,17,0.05);
}

.tape-item::before {
  content: '';
  position: absolute;
  top: -11px; left: 50%; transform: translateX(-50%);
  width: 40px; height: 20px;
  background: rgba(17,17,17,0.07);
  border-radius: 2px;
}

.tape-item:hover { box-shadow: 0 12px 32px rgba(17,17,17,0.12); z-index: 2; }

.tape-tilt-l { transform: rotate(-1.8deg); }
.tape-tilt-r { transform: rotate(1.4deg); }
.tape-tilt-l:hover { transform: rotate(0deg) scale(1.04); }
.tape-tilt-r:hover { transform: rotate(0deg) scale(1.04); }

.tape-num {
  font-family: var(--mono); font-size: 0.6rem;
  color: var(--dim); letter-spacing: 0.1em; margin-bottom: 8px;
}

.tape-item h3 {
  font-size: 1.15rem; font-weight: 700;
  letter-spacing: 0; margin-bottom: 6px; color: var(--black);
  font-family: 'Caveat', cursive;
}

.tape-item p {
  font-size: 1rem; color: var(--muted); line-height: 1.55;
  font-family: 'Caveat', cursive; font-weight: 500;
  text-align: justify; hyphens: auto; -webkit-hyphens: auto;
}

/* ===== PORTFOLIO ===== */
.portfolio-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.portfolio-inner { text-align: center; }
.portfolio-inner .section-tag { text-align: left; }
.portfolio-inner .section-sub { margin: 0 auto; }

/* ===== FOOTER ===== */
.footer {
  background: var(--cream2);
  border-top: 1px solid var(--border);
  padding: 1.5rem 2.5rem;
}

.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}

.footer-brand {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted);
}

.footer-links { display: flex; gap: 1.8rem; }
.footer-links a {
  font-size: 0.78rem; color: var(--dim);
  font-family: var(--poppins); transition: color 0.15s;
}
.footer-links a:hover { color: var(--black); }

.footer-copy { font-family: var(--poppins); font-size: 0.68rem; color: var(--dim); }

/* ===== MOBILE NAV ===== */
@media (max-width: 680px) {
  .nav { padding: 0 1.2rem; }
  .nav-hamburger { display: flex; }

  .nav-links {
    display: flex !important;
    position: fixed; top: 54px; left: 0; right: 0;
    background: rgba(255,251,245,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column; gap: 0;
    border-bottom: 1px solid var(--border);
    z-index: 99;
    max-height: 0; overflow: hidden;
    opacity: 0; pointer-events: none;
    transition: max-height 0.32s cubic-bezier(0.4,0,0.2,1), opacity 0.22s ease;
  }

  .nav-links.open { max-height: 300px; opacity: 1; pointer-events: auto; }

  .nav-links a {
    padding: 1rem 1.5rem; font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
    opacity: 0; transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .nav-links.open a { opacity: 1; transform: translateY(0); }
  .nav-links.open a:nth-child(1) { transition-delay: 0.05s; }
  .nav-links.open a:nth-child(2) { transition-delay: 0.10s; }
  .nav-links.open a:nth-child(3) { transition-delay: 0.15s; }
  .nav-links a:last-child { border-bottom: none; }

  .nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}

/* ===== TABLET — slider stacks ===== */
@media (max-width: 900px) {
  .slider-wrap { height: auto; flex-direction: column; }
  .slider-panel {
    flex: none !important; min-width: unset;
    border-right: none; border-bottom: 1px solid var(--border);
  }
  .slider-panel:last-child { border-bottom: none; }
  .slider-collapsed {
    position: relative; inset: unset;
    flex-direction: row; height: 48px;
    padding: 0 1.2rem; gap: 10px;
    opacity: 1 !important; pointer-events: auto !important;
  }
  .slider-panel.active .slider-collapsed { opacity: 1 !important; pointer-events: auto !important; }
  .slider-label { writing-mode: horizontal-tb; transform: none; }
  .slider-content {
    position: relative; inset: unset;
    opacity: 0; max-height: 0; overflow: hidden; padding: 0;
    transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.25s ease;
  }
  .slider-panel.active .slider-content {
    opacity: 1; max-height: 300px; padding: 16px 18px; pointer-events: auto;
  }
}

/* ===== MOBILE ===== */
@media (max-width: 680px) {
  .section { padding: 3.5rem 1.2rem; }
  .hero { padding: 80px 1.2rem 4rem; }
  .corner-tl { top: 68px; left: 0.8rem; }
  .corner-tr { top: 68px; right: 0.8rem; }
  .corner-bl { bottom: 1.5rem; left: 0.8rem; }
  .corner-br { bottom: 1.5rem; right: 0.8rem; }
  .band { padding: 1.4rem 1.2rem; }
  .footer { padding: 1.2rem; }
  .footer-inner { flex-direction: column; align-items: center; text-align: center; gap: 0.8rem; }
  .intern-tape { gap: 14px; padding: 14px 0 6px; }
  .tape-item { flex: 0 0 calc(50% - 7px); min-width: unset; max-width: unset; }
  .hero-sub { font-size: 0.95rem; }
  .section-sub { font-size: 0.9rem; }
}

/* ===== SMALL MOBILE ===== */
@media (max-width: 400px) {
  .hero-title { font-size: 2.1rem; }
  .tape-item { flex: 0 0 100%; }
  .pill { font-size: 0.65rem; padding: 4px 11px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 260px; }
}