/* ============================================================
   NIRVANA BIOTECH — design tokens
   Ink + lab-paper, teal/rust accent pair, chromatogram motif
   ============================================================ */

:root{
  --ink:        #0B1210;
  --ink-soft:    #16201D;
  --paper:      #F7F5EF;
  --paper-dim:  #EFEBE0;
  --teal:       #1C5E52;
  --teal-bright:#2C8A77;
  --rust:       #C7402A;
  --sage:       #9DA89F;
  --sage-dim:   #5C685F;
  --line:       rgba(247,245,239,0.14);
  --line-dark:  rgba(11,18,16,0.12);

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans:  "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono:  "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  --measure: 68ch;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a{ color: inherit; text-decoration: none; }
img{ max-width:100%; display:block; }

::selection{ background: var(--rust); color: var(--paper); }

:focus-visible{
  outline: 2px solid var(--rust);
  outline-offset: 3px;
}

/* ---------- type scale ---------- */
h1,h2,h3,h4{ font-family: var(--serif); font-weight: 600; margin:0; letter-spacing: -0.01em; }
.eyebrow{
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-bright);
}
.lede{ font-size: 1.15rem; line-height: 1.65; color: var(--sage); max-width: var(--measure); }
.body-copy{ font-size: 1rem; line-height: 1.75; color: rgba(247,245,239,0.86); max-width: var(--measure); }
.body-copy + .body-copy{ margin-top: 1.1em; }

/* ---------- layout shell ---------- */
.shell{ max-width: 1280px; margin: 0 auto; padding: 0 6vw; }
@media (max-width: 640px){ .shell{ padding: 0 5.5vw; } }

main{ display:block; }

/* ---------- top nav ---------- */
.topnav{
  position: sticky; top:0; z-index: 80;
  background: rgba(11,18,16,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topnav-inner{
  max-width:1280px; margin:0 auto; padding: 0 6vw;
  height: 76px; display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width: 34px; height:34px; border-radius:8px; object-fit:cover;
  border:1px solid var(--line);
}
.brand-text{ font-family: var(--serif); font-weight:600; font-size:1.05rem; letter-spacing:0.01em; }
.brand-sub{ font-family: var(--mono); font-size:0.6rem; letter-spacing:0.22em; color: var(--sage); text-transform:uppercase; }

.navlinks{ display:flex; gap: 1.5rem; font-size:0.82rem; }
.navlinks a{
  position:relative; padding: 6px 0; color: var(--sage);
  font-weight:500; letter-spacing:0.01em; transition: color .2s ease;
}
.navlinks a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px;
  background: var(--rust); transition: width .25s ease;
}
.navlinks a:hover, .navlinks a.is-active{ color: var(--paper); }
.navlinks a.is-active::after, .navlinks a:hover::after{ width:100%; }

.nav-toggle{ display:none; background:none; border:1px solid var(--line); color:var(--paper); width:40px; height:40px; border-radius:8px; }
@media (max-width: 1100px){
  .navlinks{ display:none; }
  .nav-toggle{ display:flex; align-items:center; justify-content:center; }
}

.mobile-menu{
  display:none; position:fixed; inset:76px 0 0 0; z-index:79;
  background: var(--ink); padding: 2rem 6vw; flex-direction:column; gap:1.4rem;
}
.mobile-menu.open{ display:flex; }
.mobile-menu a{ font-family: var(--serif); font-size:1.6rem; color: var(--paper); }

/* ---------- chromatogram trace (signature element) ---------- */
.trace{ display:block; width:100%; height: auto; }
.trace path{
  fill:none; stroke: var(--rust); stroke-width: 1.6;
  stroke-dasharray: 1400; stroke-dashoffset: 1400;
  animation: trace-draw 2.1s cubic-bezier(.3,.8,.2,1) forwards;
}
.trace .trace-teal{ stroke: var(--teal-bright); opacity:0.55; }
@keyframes trace-draw{ to{ stroke-dashoffset:0; } }

.trace-divider{ width:100%; height:34px; opacity:0.5; margin: 0; }
.trace-divider path{ stroke: var(--sage-dim); stroke-width:1; stroke-dasharray:none; animation:none; }

/* ---------- hero ---------- */
.hero{
  position:relative; padding: 9.5rem 0 5rem;
  border-bottom: 1px solid var(--line);
  overflow:hidden;
}
.hero-eyebrow{ margin-bottom:1.2rem; }
.hero h1{
  font-size: clamp(2.4rem, 5.4vw, 4.6rem);
  line-height: 1.04;
  max-width: 16ch;
}
.hero .lede{ margin-top: 1.6rem; }
.hero-trace{ margin-top: 3rem; max-width: 720px; }

/* ---------- section spacing ---------- */
.section{ padding: 5.5rem 0; }
.section + .section{ border-top: 1px solid var(--line); }
.section-head{ margin-bottom: 3rem; }
.section-head .eyebrow{ margin-bottom: 0.9rem; }
.section-head h2{ font-size: clamp(1.8rem, 3vw, 2.6rem); }

/* ---------- light/paper section variant ---------- */
.section--paper{ background: var(--paper); color: var(--ink); border-color: var(--line-dark); }
.section--paper .eyebrow{ color: var(--teal); }
.section--paper .lede{ color: var(--sage-dim); }
.section--paper .body-copy{ color: rgba(11,18,16,0.82); }

/* ---------- cards ---------- */
.card-grid{ display:grid; gap: 1.6rem; }
.grid-2{ grid-template-columns: repeat(2,1fr); }
.grid-3{ grid-template-columns: repeat(3,1fr); }
@media (max-width: 860px){ .grid-2,.grid-3{ grid-template-columns: 1fr; } }

.card{
  border:1px solid var(--line); border-radius: 4px;
  padding: 1.9rem; background: rgba(247,245,239,0.03);
  transition: border-color .25s ease, transform .25s ease;
  cursor:pointer;
}
.card:hover{ border-color: var(--teal-bright); transform: translateY(-2px); }
.card img{ width:100%; height:200px; object-fit:cover; border-radius:3px; margin-bottom:1.3rem; }
.card h3{ font-size:1.25rem; line-height:1.3; }
.card p{ margin-top:0.7rem; font-size:0.92rem; line-height:1.6; color: var(--sage); }
.card .tag{ font-family:var(--mono); font-size:0.68rem; color: var(--teal-bright); letter-spacing:0.08em; text-transform:uppercase; }
.card .more{ display:inline-flex; align-items:center; gap:0.4rem; margin-top:1.1rem; font-size:0.78rem; font-family:var(--mono); color: var(--rust); }

.section--paper .card{ background: #fff; border-color: var(--line-dark); }
.section--paper .card:hover{ border-color: var(--teal); }
.section--paper .card p{ color: var(--sage-dim); }

/* research list rows */
.research-row{
  display:grid; grid-template-columns: 110px 1fr; gap: 1.8rem;
  padding: 2rem 0; border-top: 1px solid var(--line); cursor:pointer;
  transition: background .2s ease;
}
.research-row:hover{ background: rgba(247,245,239,0.03); }
.research-row .date{ font-family:var(--mono); font-size:0.78rem; color: var(--rust); padding-top:0.25rem; }
.research-row h3{ font-size:1.3rem; }
.research-row p{ margin-top:0.6rem; color: var(--sage); font-size:0.94rem; line-height:1.65; }
.section--paper .research-row{ border-color: var(--line-dark); }
.section--paper .research-row:hover{ background: rgba(11,18,16,0.03); }
.section--paper .research-row p{ color: var(--sage-dim); }

/* team */
.team-card{ text-align:left; }
.team-card img{ width:100%; height:240px; object-fit:cover; border-radius:3px; }
.team-card .name{ font-family:var(--serif); font-size:1.15rem; margin-top:1.1rem; }
.team-card .role{ font-family:var(--mono); font-size:0.72rem; color: var(--teal-bright); text-transform:uppercase; letter-spacing:0.08em; margin-top:0.3rem; }

/* collaborators */
.collab-card{ text-align:left; cursor:default; }
.collab-card .collab-photo{
  width:72px; height:72px; border-radius:50%; object-fit:cover;
  border:1px solid var(--line); background: rgba(247,245,239,0.06);
}
.collab-card .name{ font-family:var(--serif); font-size:1.1rem; margin-top:1rem; }
.collab-card .affiliation{ font-size:0.84rem; color: var(--teal-bright); margin-top:0.2rem; }
.collab-card .type-pill{
  display:inline-block; font-family:var(--mono); font-size:0.62rem; letter-spacing:0.08em;
  text-transform:uppercase; color: var(--sage); border:1px solid var(--line);
  border-radius:20px; padding:3px 10px; margin-top:0.7rem;
}
.section--paper .collab-card .type-pill{ border-color: var(--line-dark); color: var(--sage-dim); }

/* projects board */
.status-filter{ display:flex; gap:0.6rem; flex-wrap:wrap; margin-bottom:2rem; }
.status-filter button{
  font-family:var(--mono); font-size:0.72rem; letter-spacing:0.05em; text-transform:uppercase;
  padding:0.5rem 1rem; border-radius:20px; border:1px solid var(--line); background:none;
  color: var(--sage); cursor:pointer; transition: all .2s ease;
}
.status-filter button:hover{ color: var(--paper); border-color: var(--sage); }
.status-filter button.is-active{ background: var(--teal-bright); border-color: var(--teal-bright); color:#fff; }

.status-pill{
  display:inline-flex; align-items:center; gap:6px;
  font-family:var(--mono); font-size:0.66rem; letter-spacing:0.06em; text-transform:uppercase;
  padding:4px 11px; border-radius:20px;
}
.status-pill::before{ content:""; width:6px; height:6px; border-radius:50%; }
.status-pill.status-ongoing{ background: rgba(44,138,119,0.14); color: var(--teal-bright); }
.status-pill.status-ongoing::before{ background: var(--teal-bright); }
.status-pill.status-completed{ background: rgba(157,168,159,0.14); color: var(--sage); }
.status-pill.status-completed::before{ background: var(--sage); }
.status-pill.status-planned{ background: rgba(199,64,42,0.14); color: var(--rust); }
.status-pill.status-planned::before{ background: var(--rust); }

.project-row{
  border-top:1px solid var(--line); padding:1.8rem 0; cursor:pointer;
  transition: background .2s ease;
}
.project-row:hover{ background: rgba(247,245,239,0.03); }
.project-row .project-head{ display:flex; align-items:center; gap:1rem; flex-wrap:wrap; justify-content:space-between; }
.project-row h3{ font-size:1.25rem; }
.project-row p.desc{ margin-top:0.6rem; color: var(--sage); font-size:0.92rem; line-height:1.6; max-width:62ch; }
.project-meta{ display:flex; gap:1.4rem; flex-wrap:wrap; margin-top:0.9rem; font-family:var(--mono); font-size:0.74rem; color: var(--sage-dim); }
.project-meta span b{ color: var(--sage); font-weight:500; }
.section--paper .project-row{ border-color: var(--line-dark); }
.section--paper .project-row:hover{ background: rgba(11,18,16,0.03); }
.section--paper .project-row p.desc{ color: var(--sage-dim); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:0.55rem;
  font-family: var(--mono); font-size:0.78rem; letter-spacing:0.05em;
  padding: 0.85rem 1.6rem; border-radius: 3px; text-transform:uppercase;
  border:1px solid currentColor; transition: all .2s ease;
}
.btn--solid{ background: var(--rust); border-color: var(--rust); color: var(--paper); }
.btn--solid:hover{ background: #a93420; }
.btn--ghost{ color: var(--paper); }
.btn--ghost:hover{ background: rgba(247,245,239,0.08); }
.section--paper .btn--ghost{ color: var(--ink); }
.section--paper .btn--ghost:hover{ background: rgba(11,18,16,0.06); }

/* ---------- footer ---------- */
footer{
  background: var(--ink-soft); border-top:1px solid var(--line);
  padding: 3.5rem 0 2.2rem;
}
.footer-grid{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:2rem; }
.footer-col h4{ font-family:var(--mono); font-size:0.7rem; letter-spacing:0.12em; text-transform:uppercase; color: var(--sage); margin-bottom:1rem; }
.footer-col a, .footer-col p{ display:block; font-size:0.88rem; color: var(--sage); margin-bottom:0.55rem; }
.footer-col a:hover{ color: var(--paper); }
.footer-bottom{
  margin-top:3rem; padding-top:1.6rem; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem;
  font-size:0.74rem; color: var(--sage-dim);
}

/* ---------- contact form ---------- */
.form-grid{ display:grid; gap:1.3rem; max-width:640px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:1.3rem; }
@media (max-width:640px){ .form-row{ grid-template-columns:1fr; } }
label{ font-family:var(--mono); font-size:0.68rem; letter-spacing:0.1em; text-transform:uppercase; color: var(--sage); display:block; margin-bottom:0.5rem; }
input, textarea{
  width:100%; background: rgba(247,245,239,0.04); border:1px solid var(--line);
  border-radius:3px; padding:0.85rem 1rem; color: var(--paper); font-family: var(--sans); font-size:0.92rem;
}
input:focus, textarea:focus{ outline:none; border-color: var(--teal-bright); }
textarea{ resize:vertical; }

/* ---------- modal (detail popup) ---------- */
.modal-overlay{
  display:none; position:fixed; inset:0; z-index:200;
  background: rgba(11,18,16,0.78); backdrop-filter: blur(4px);
  align-items:center; justify-content:center; padding: 2rem;
}
.modal-overlay.open{ display:flex; }
.modal-box{
  background: var(--paper); color: var(--ink); max-width:640px; width:100%;
  max-height:84vh; overflow-y:auto; border-radius:6px; position:relative;
}
.modal-box img{ width:100%; height:260px; object-fit:cover; }
.modal-box input, .modal-box textarea{
  background:#fff; border:1px solid var(--line-dark); color: var(--ink);
}
.modal-box input:focus, .modal-box textarea:focus{ border-color: var(--teal); }
.modal-box label{ color: var(--sage-dim); }
.modal-body{ padding: 2.2rem; }
.modal-tag{ font-family:var(--mono); font-size:0.7rem; color: var(--rust); text-transform:uppercase; letter-spacing:0.08em; }
.modal-body h3{ font-family:var(--serif); font-size:1.7rem; margin-top:0.8rem; color:var(--ink); }
.modal-body p{ margin-top:1rem; color: var(--sage-dim); line-height:1.7; white-space:pre-line; font-size:0.95rem; }
.modal-close{
  position:absolute; top:1rem; right:1rem; width:36px; height:36px;
  border-radius:50%; background:#fff; border:1px solid var(--line-dark);
  display:flex; align-items:center; justify-content:center; cursor:pointer; z-index:2;
}

/* ---------- page transition fade ---------- */
.page-fade{ animation: fadeUp .5s ease-out both; }
@keyframes fadeUp{ from{ opacity:0; transform: translateY(10px); } to{ opacity:1; transform:none; } }

/* utility */
.mt-lg{ margin-top: 3rem; }
.text-center{ text-align:center; }
.flex-between{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:1rem; }
.hidden{ display:none !important; }

/* ============================================================
   ADMIN / EDIT MODE
   ============================================================ */
/* !important here is deliberate: .edit-only elements often carry a second
   layout class (.editable-controls, etc.) whose own display rule has equal
   specificity and could otherwise win purely by being declared later in this
   file. That ordering dependency previously caused edit controls to be
   visible to logged-out visitors. !important removes the ordering hazard;
   the body.edit-mode override below also uses !important so it still wins
   once logged in. */
.edit-only{ display:none !important; }
body.edit-mode .edit-only{ display:inline-flex !important; }
body.edit-mode .edit-only.block{ display:block !important; }

.admin-trigger{
  font-family: var(--mono); font-size:0.62rem; letter-spacing:0.14em;
  color: var(--sage-dim); border:1px solid var(--line); padding:5px 9px;
  border-radius:3px; background:none; cursor:pointer; text-transform:uppercase;
  transition: color .2s ease, border-color .2s ease;
}
.admin-trigger:hover{ color: var(--paper); border-color: var(--sage); }
.admin-trigger.is-logout{ color:#e07a63; border-color: rgba(224,122,99,0.35); }
.admin-trigger.is-logout:hover{ color:#e07a63; border-color:#e07a63; }
.edit-mode-badge{
  font-family: var(--mono); font-size:0.6rem; letter-spacing:0.16em;
  color: var(--teal-bright); border:1px solid rgba(44,138,119,0.4);
  background: rgba(44,138,119,0.08); padding:5px 9px; border-radius:3px;
  text-transform:uppercase;
}

.edit-pencil{
  display:inline-flex; align-items:center; gap:5px;
  font-family: var(--mono); font-size:0.66rem; letter-spacing:0.04em;
  color: var(--teal-bright); background: rgba(44,138,119,0.08);
  border:1px solid rgba(44,138,119,0.35); border-radius:3px;
  padding:4px 9px; cursor:pointer; text-transform:uppercase;
  transition: background .2s ease;
}
.edit-pencil:hover{ background: rgba(44,138,119,0.18); }
.edit-pencil.danger{ color:#e07a63; background: rgba(224,122,99,0.08); border-color: rgba(224,122,99,0.35); }
.edit-pencil.danger:hover{ background: rgba(224,122,99,0.18); }
.section--paper .edit-pencil{ color: var(--teal); }

.editable-controls{ display:flex; gap:0.5rem; flex-wrap:wrap; margin-top:0.9rem; }
.editable-wrap{ position:relative; }
.editable-img-btn{
  position:absolute; top:10px; right:10px; z-index:3;
  font-family: var(--mono); font-size:0.62rem; text-transform:uppercase;
  background: rgba(11,18,16,0.78); color: var(--paper); border:1px solid var(--line);
  padding:6px 10px; border-radius:3px; cursor:pointer; letter-spacing:0.05em;
}
.editable-img-btn:hover{ background: rgba(11,18,16,0.92); }

.add-item-btn{
  font-family: var(--mono); font-size:0.7rem; letter-spacing:0.05em;
  color: var(--paper); background: var(--teal); border:none;
  padding:0.7rem 1.2rem; border-radius:3px; cursor:pointer; text-transform:uppercase;
  margin-top:1.6rem;
}
.add-item-btn:hover{ background: var(--teal-bright); }

/* generic admin modal (login / text edit / detail edit) */
.admin-overlay{
  display:none; position:fixed; inset:0; z-index:300;
  background: rgba(11,18,16,0.82); backdrop-filter: blur(4px);
  align-items:center; justify-content:center; padding:1.5rem;
}
.admin-overlay.open{ display:flex; }
.admin-box{
  background: var(--paper); color: var(--ink); width:100%; max-width:460px;
  border-radius:6px; padding:1.8rem; max-height:88vh; overflow-y:auto;
}
.admin-box.wide{ max-width:600px; }
.admin-box h3{ font-family: var(--serif); font-size:1.3rem; color: var(--ink); }
.admin-box .hint{ font-size:0.84rem; color: var(--sage-dim); margin-top:0.4rem; }
.admin-box label{ color: var(--sage-dim); margin-top:1.1rem; }
.admin-box label:first-of-type{ margin-top:1.4rem; }
.admin-box input, .admin-box textarea{
  background:#fff; border:1px solid var(--line-dark); color: var(--ink);
}
.admin-box input:focus, .admin-box textarea:focus{ border-color: var(--teal); }
.admin-error{
  display:none; font-size:0.8rem; color:#b3402a; margin-top:0.7rem;
  font-family: var(--mono);
}
.admin-error.show{ display:block; }
.admin-actions{ display:flex; gap:0.7rem; margin-top:1.6rem; }
.admin-actions .btn{ flex:1; justify-content:center; }
.btn--admin-cancel{ background:none; border:1px solid var(--line-dark); color: var(--sage-dim); }
.btn--admin-cancel:hover{ background: rgba(11,18,16,0.05); }
.btn--admin-confirm{ background: var(--teal); border-color: var(--teal); color:#fff; }
.btn--admin-confirm:hover{ background: var(--teal-bright); }

/* save bar */
.save-bar{
  display:none; position:fixed; bottom:0; left:0; width:100%; z-index:290;
  background: var(--ink-soft); border-top:1px solid var(--line);
  padding: 1.1rem 6vw; align-items:center; justify-content:space-between;
  gap:1rem; flex-wrap:wrap; box-shadow: 0 -8px 24px rgba(0,0,0,0.3);
}
.save-bar.open{ display:flex; }
.save-status{ font-family: var(--mono); font-size:0.78rem; color: var(--sage); }
.save-status.is-saved{ color: var(--teal-bright); }
.save-bar-actions{ display:flex; gap:0.7rem; }
.btn--discard{ background:none; border:1px solid var(--line); color: var(--paper); }
.btn--discard:hover{ background: rgba(247,245,239,0.08); }
.btn--save{ background: var(--teal-bright); border-color: var(--teal-bright); color:#fff; }
.btn--save:hover{ background: #34a08c; }
.btn--save:disabled{ opacity:0.6; cursor:default; }

/* push body content up so the save bar doesn't overlap the footer */
body.edit-mode{ padding-bottom: 74px; }
@media (max-width:640px){ body.edit-mode{ padding-bottom: 110px; } }