/* =========================================================
   SpecVault — "X-touch" theme
   Light, minimal, app-like: pill buttons, flat hover-tint cards,
   circular brand avatars, generous whitespace, one sky-blue accent.
   The caliper/diff-bar comparison visual stays as the site's own
   signature element — everything around it is restyled.
   ========================================================= */

:root{
  --bg:           #FFFFFF;
  --surface:      #F7F8F8;   /* hover tint / alt panels */
  --surface-2:    #EFF3F4;   /* input fill, dividers */
  --ink:          #0F1419;
  --slate:        #536471;
  --line:         #EFF3F4;
  --line-strong:  #CFD9DE;
  --blue:         #1D9BF0;
  --blue-dim:     #E8F5FD;
  --blue-ink:     #0C7ABF;
  --orange:       #F2730C;
  --orange-dim:   #FDEEDF;
  --green:        #00BA7C;
  --green-dim:    #E6F8F1;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius-pill: 9999px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1400px;
}

*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor: pointer; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4{ margin: 0; letter-spacing: -0.02em; font-weight: 800; }

:focus-visible{ outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce){ *{ animation-duration: .001ms !important; transition-duration: .001ms !important; } }

.wrap{ max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.mono{ font-family: var(--font-mono); }
.eyebrow{ font-size: 13px; font-weight: 600; color: var(--slate); }

/* generic phone glyph used everywhere instead of stock photos —
   never breaks, never mismatches the product */
.phone-glyph{ color: var(--line-strong); }
.phone-glyph svg{ width: 46%; height: 46%; }

/* ---------- Buttons (pill) ---------- */
.btn{
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 700; font-size: 14.5px;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: background .15s ease, border-color .15s ease, color .15s ease, opacity .15s ease;
  white-space: nowrap;
}
.btn-primary{ background: var(--ink); color: #fff; }
.btn-primary:hover{ opacity: 0.86; }
.btn-ghost{ background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover{ background: var(--surface); }
.btn-sm{ padding: 7px 16px; font-size: 13px; }
.btn-block{ width: 100%; }

/* ---------- Tags / badges (pill) ---------- */
.tag{
  display: inline-flex; align-items: center;
  font-size: 12px; font-weight: 700;
  padding: 4px 11px; border-radius: var(--radius-pill);
  background: var(--surface-2); color: var(--slate);
}
.tag-new{ background: var(--orange-dim); color: var(--orange); }
.tag-blue{ background: var(--blue-dim); color: var(--blue-ink); }
.tag-win{ background: var(--green-dim); color: var(--green); }

/* ---------- Top navigation ---------- */
.nav{
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-row{ display: flex; align-items: center; gap: 8px; height: 64px; }
.brand{
  display: flex; align-items: center; gap: 9px;
  font-weight: 800; font-size: 19px; letter-spacing: -0.02em;
  padding: 8px 10px; border-radius: var(--radius-pill);
  margin-left: -10px;
}
.brand:hover{ background: var(--surface); }
.brand-mark{ width: 28px; height: 28px; flex: none; display: inline-flex; }
.brand-mark svg{ width: 100%; height: 100%; display: block; }

.nav-links{ display:flex; gap: 4px; margin-left: 18px; }
.nav-links a{
  font-size: 15px; font-weight: 600; color: var(--slate);
  padding: 9px 16px; border-radius: var(--radius-pill);
}
.nav-links a:hover{ background: var(--surface); color: var(--ink); }
.nav-links a.active{ background: var(--ink); color: #fff; }

.nav-search{
  margin-left: auto;
  display: flex; align-items: center; gap: 9px;
  background: var(--surface-2);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 10px 16px; width: 300px;
  font-size: 14px; color: var(--slate);
  transition: border-color .15s ease, background .15s ease;
}
.nav-search:focus-within{ background: var(--bg); border-color: var(--blue); }
.nav-search input{ border:none; outline:none; background:transparent; font-family:inherit; font-size:14px; color:var(--ink); width:100%; }

.nav-burger{ display:none; background:none; border:none; padding:8px; margin-left:auto; border-radius: var(--radius-pill); cursor: pointer; }
.nav-burger:hover{ background: var(--surface); }
.nav-burger span{
  display:block; width:19px; height:2px; background:var(--ink); margin:4px 0; border-radius: 1px;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-burger.is-active span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.nav-burger.is-active span:nth-child(2){ opacity: 0; }
.nav-burger.is-active span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* ---------- Mobile menu: full-screen slide-in panel ---------- */
.mobile-menu{
  display: none; /* only enabled within the mobile breakpoint below */
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  flex-direction: column;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}
.mobile-menu.open{ transform: translateX(0); }
.mobile-menu-header{
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--line); flex: none;
}
.mobile-menu-header .brand{ margin-left: -10px; }
.mobile-menu-close{
  background: none; border: none; padding: 9px; border-radius: var(--radius-pill);
  color: var(--ink); display: flex; cursor: pointer;
}
.mobile-menu-close:hover{ background: var(--surface); }
.mobile-menu-search{
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-2); border-radius: var(--radius-pill);
  padding: 13px 18px; margin: 18px 20px 6px; font-size: 15px; color: var(--slate);
  flex: none;
}
.mobile-menu-search input{
  border: none; outline: none; background: transparent;
  font-family: inherit; font-size: 15px; color: var(--ink); width: 100%;
}
.mobile-menu-links{ display: flex; flex-direction: column; padding: 14px 20px 28px; }
.mobile-menu-links a{
  font-size: 19px; font-weight: 700; color: var(--ink);
  padding: 18px 4px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
}
.mobile-menu-links a::after{
  content: '→'; color: var(--line-strong); font-weight: 400; font-size: 18px;
}
.mobile-menu-links a.active{ color: var(--blue); }
.mobile-menu-links a.active::after{ color: var(--blue); }

/* Body lock while the mobile menu is open */
body.mobile-menu-locked{ overflow: hidden; }

/* ---------- Footer ---------- */
.footer{ border-top: 1px solid var(--line); margin-top: 72px; padding: 44px 0 30px; color: var(--slate); font-size: 13px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; margin-bottom: 28px; }
.footer-col h4{ font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 12px; letter-spacing: normal; }
.footer-col li{ margin-bottom: 9px; }
.footer-col a:hover{ color: var(--blue); }
.footer-bottom{ display:flex; justify-content:space-between; border-top:1px solid var(--line); padding-top:18px; }

/* ---------- Section heading ---------- */
.section-head{ display:flex; align-items:baseline; justify-content:space-between; margin-bottom: 18px; }
.section-head h2{ font-size: 23px; }
.section-head .see-all{ font-size: 14px; font-weight: 700; color: var(--blue); padding: 8px 14px; border-radius: var(--radius-pill); margin-right: -14px; }
.section-head .see-all:hover{ background: var(--blue-dim); }
section.block{ margin: 60px 0; }

/* ---------- Phone card — flat, hover = tint not lift ---------- */
.phone-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.phone-card{
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  position: relative;
  transition: background .15s ease, border-color .15s ease;
}
.phone-card:hover{ background: var(--surface); border-color: var(--line-strong); }
.phone-card .thumb{
  aspect-ratio: 3/4;
  background: var(--surface);
  border-radius: var(--radius-sm);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 12px; overflow: hidden;
}
.phone-card .brand-name{ font-size: 12px; color: var(--slate); font-weight: 600; }
.phone-card h3{ font-size: 15px; font-weight: 700; margin: 2px 0 8px; line-height: 1.3; letter-spacing: normal; }
.phone-card .price{ font-family: var(--font-mono); font-weight: 600; font-size: 14px; }
.spec-quickrow{ display:flex; flex-wrap:wrap; gap:6px; margin-top:10px; font-family: var(--font-mono); font-size: 11px; color: var(--slate); }
.spec-quickrow span{ background: var(--surface-2); padding: 3px 9px; border-radius: var(--radius-pill); }
.card-top-row{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom: 2px; }
.compare-check{ display:flex; align-items:center; gap:5px; font-size:11px; font-weight:600; color: var(--slate); }
.compare-check input{ accent-color: var(--blue); }

/* ---------- Hero: comparison ribbon ---------- */
.hero{ padding: 56px 0 44px; border-bottom: 1px solid var(--line); }
.hero-grid{ display:grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items:center; }
.hero h1{ font-size: 46px; line-height: 1.08; margin-bottom: 16px; }
.hero h1 em{ font-style:normal; color: var(--blue); }
.hero p.lede{ color: var(--slate); font-size: 17px; max-width: 460px; margin-bottom: 26px; line-height:1.5; }
.hero-actions{ display:flex; gap: 10px; }

.diff-card{ background: var(--bg); border: 1px solid var(--line); border-radius: 24px; padding: 24px; box-shadow: 0 1px 2px rgba(15,20,25,0.04), 0 20px 40px rgba(15,20,25,0.06); }
.diff-card-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom: 18px; }
.diff-phones{ display:grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items:center; margin-bottom: 20px; }
.diff-phone{ text-align:center; }
.diff-phone .thumb{ width:64px; height:80px; margin: 0 auto 8px; background: var(--surface); border-radius: var(--radius-sm); display:flex; align-items:center; justify-content:center; }
.diff-phone .name{ font-size: 13px; font-weight: 700; }
.diff-vs{ font-family: var(--font-mono); font-size: 11px; font-weight:600; color: var(--slate); border: 1px solid var(--line-strong); border-radius: 50%; width: 28px; height: 28px; display:flex; align-items:center; justify-content:center; background: var(--bg); }

.diff-row{ margin-bottom: 16px; }
.diff-row-label{ display:flex; justify-content:space-between; font-size: 12px; font-weight: 600; color: var(--slate); margin-bottom: 6px; }
.diff-row-label .win{ color: var(--green); }
.caliper{
  position: relative; height: 22px;
  background: repeating-linear-gradient(to right, var(--line) 0, var(--line) 1px, transparent 1px, transparent 12px), var(--surface);
  border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
}
.caliper-fill{ position:absolute; top:0; bottom:0; left:0; background: var(--blue-dim); border-right: 2px solid var(--blue); border-radius: var(--radius-pill) 0 0 var(--radius-pill); }
.caliper-fill.is-orange{ background: var(--orange-dim); border-right-color: var(--orange); }
.caliper-vals{ display:flex; justify-content:space-between; font-family: var(--font-mono); font-size: 12px; font-weight: 600; margin-top: 5px; }

/* ---------- Brand strip — circular avatars ---------- */
.brand-strip{ display:grid; grid-template-columns: repeat(8,1fr); gap: 12px; }
.brand-tile{
  display:flex; flex-direction:column; align-items:center; gap: 10px;
  text-align:center; padding: 14px 6px; border-radius: var(--radius-md);
}
.brand-tile:hover{ background: var(--surface); }
.brand-tile .avatar{
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--surface-2);
  display:flex; align-items:center; justify-content:center;
  font-weight: 800; font-size: 17px; color: var(--ink);
  border: 1px solid var(--line);
}
.brand-tile:hover .avatar{ border-color: var(--blue); color: var(--blue); }
.brand-tile .name{ font-size: 13px; font-weight: 700; }
.brand-tile .count{ font-family: var(--font-mono); color: var(--slate); font-size: 11px; }

/* ---------- Spec sheet (phone detail) ---------- */
.spec-group{ border: 1px solid var(--line); border-radius: var(--radius-md); margin-bottom: 12px; overflow:hidden; background: var(--bg); }
.spec-group summary{ list-style:none; display:flex; justify-content:space-between; align-items:center; padding: 16px 20px; font-weight: 700; font-size: 15px; cursor:pointer; }
.spec-group summary:hover{ background: var(--surface); }
.spec-group summary::-webkit-details-marker{ display:none; }
.spec-group summary .chev{ font-family: var(--font-mono); color: var(--slate); font-size: 13px; }
.spec-group[open] summary .chev{ transform: rotate(180deg); display:inline-block; }
.spec-rows{ border-top: 1px solid var(--line); }
.spec-row{ display:grid; grid-template-columns: 190px 1fr; padding: 12px 20px; font-size: 14px; border-bottom: 1px solid var(--line); }
.spec-row:last-child{ border-bottom:none; }
.spec-row .k{ color: var(--slate); font-weight: 500; }
.spec-row .v{ font-family: var(--font-mono); }

/* ---------- Breadcrumb ---------- */
.crumb{ font-size: 13px; color: var(--slate); margin: 20px 0; }
.crumb a:hover{ color: var(--blue); }

/* ---------- Filters sidebar ---------- */
.browse-layout{ display:grid; grid-template-columns: 256px 1fr; gap: 32px; align-items:start; }
.filter-panel{ border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg); padding: 4px 0; }
.filter-group{ border-bottom: 1px solid var(--line); }
.filter-group:last-child{ border-bottom:none; }
.filter-group summary{ list-style:none; cursor:pointer; display:flex; justify-content:space-between; padding: 15px 18px; font-weight: 700; font-size: 14px; }
.filter-group summary:hover{ background: var(--surface); }
.filter-group summary::-webkit-details-marker{ display:none; }
.filter-body{ padding: 2px 18px 16px; display:flex; flex-direction:column; gap: 4px; }
.filter-body label{ display:flex; align-items:center; gap: 9px; font-size: 14px; color: var(--ink); padding: 6px 8px; margin: 0 -8px; border-radius: var(--radius-sm); }
.filter-body label:hover{ background: var(--surface); }
.filter-body input[type=checkbox]{ accent-color: var(--blue); width:16px; height:16px; }
.range-row{ display:flex; align-items:center; gap:10px; font-family: var(--font-mono); font-size: 12.5px; }
.range-row input[type=number]{
  width: 92px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 7px 9px; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink);
}
.range-row input[type=number]:focus{ outline: none; border-color: var(--blue); }
.filter-apply{ padding: 14px 18px; }

.browse-toolbar{ display:flex; justify-content:space-between; align-items:center; margin-bottom: 18px; font-size: 14px; color: var(--slate); }
.browse-toolbar select{
  font-family: inherit; font-size: 14px; font-weight:600; color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: var(--radius-pill);
  padding: 9px 16px; background: var(--bg);
}
.filter-toggle-btn{ display:none; }

.pagination{ display:flex; gap:6px; justify-content:center; margin: 36px 0; }
.pagination a{
  min-width: 38px; height: 38px; padding: 0 10px;
  display:flex; align-items:center; justify-content:center;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono); font-size: 13px; font-weight:600;
  border: 1px solid transparent;
}
.pagination a.active{ background: var(--ink); color: #fff; }
.pagination a:not(.active):hover{ background: var(--surface); }

/* ---------- Compare page ---------- */
.compare-picker{ display:grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items:center; margin: 30px 0 38px; }
.picker-slot{
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius-md); padding: 20px;
  text-align:center; background: var(--bg); min-height: 156px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap: 8px;
}
.picker-slot.filled{ border-style: solid; border-color: var(--line); text-align:left; align-items:stretch; background: var(--surface); }
.picker-slot .thumb{ width: 58px; height: 72px; background: var(--surface-2); border-radius: var(--radius-sm); display:flex; align-items:center; justify-content:center; margin: 0 auto 6px; }
.picker-vs{ font-family: var(--font-mono); color: var(--slate); font-size: 13px; font-weight: 600; }
.picker-slot .remove{ font-family: var(--font-mono); font-size: 11px; color: var(--slate); margin-top: 6px; display:inline-block; }
.picker-slot .remove:hover{ color: var(--orange); }

.picker-search{ position: relative; width: 100%; }
.picker-search input{
  width: 100%; border: 1px solid var(--line-strong); border-radius: var(--radius-pill);
  padding: 10px 16px; font-size: 14px; font-family: inherit; color: var(--ink);
}
.picker-search input:focus{ outline:none; border-color: var(--blue); }
.picker-results{
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 20;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  box-shadow: 0 12px 28px rgba(15,20,25,0.12);
  max-height: 280px; overflow-y: auto; text-align: left;
}
.picker-result{
  display:flex; align-items:center; gap: 8px; padding: 10px 14px; font-size: 13.5px; font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.picker-result:last-child{ border-bottom: none; }
.picker-result:hover{ background: var(--surface); }
.picker-result .r-brand{ font-family: var(--font-mono); font-size: 11px; color: var(--slate); font-weight: 500; }
.picker-result .r-price{ margin-left: auto; font-family: var(--font-mono); font-size: 12px; color: var(--slate); font-weight: 500; }
.picker-result-empty{ padding: 14px; font-size: 13px; color: var(--slate); text-align:center; }

.compare-table{ width:100%; border-collapse: collapse; }
.compare-table th{ text-align:left; font-size: 14px; font-weight: 700; padding: 12px 18px; background: var(--bg); border-bottom: 1px solid var(--line); position: sticky; top: 64px; }
.compare-table td{ padding: 12px 18px; border-bottom: 1px solid var(--line); font-size: 13.5px; font-family: var(--font-mono); }
.compare-table tr td:first-child{ font-family: var(--font-body); color: var(--slate); font-size: 13px; font-weight:500; white-space: nowrap; }
.compare-table td.win{ color: var(--green); font-weight: 700; }
.compare-table td.win::after{ content: " ▲"; font-size: 10px; }
.compare-cat-row td{ background: var(--surface); font-weight: 800; color: var(--ink); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; font-family: var(--font-body); }

/* ---------- Utility ---------- */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; }
.empty-state{ text-align:center; padding: 60px 20px; color: var(--slate); }

#compareBar{
  display:none; position: sticky; bottom: 16px; margin-top: 24px;
  background: var(--ink); color: #fff;
  border-radius: var(--radius-md); padding: 14px 20px;
  align-items:center; justify-content:space-between;
  box-shadow: 0 12px 30px rgba(15,20,25,0.22);
}
#compareBar .compare-bar-count{ font-family: var(--font-mono); font-size: 13px; }
#compareBar a{ background: #fff; color: var(--ink); padding: 9px 18px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 700; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1200px){
  .phone-grid{ grid-template-columns: repeat(3,1fr); }
  .brand-strip{ grid-template-columns: repeat(4,1fr); }
}
@media (max-width: 1024px){
  .hero-grid{ grid-template-columns: 1fr; gap: 36px; }
  .browse-layout{ grid-template-columns: 1fr; }
}
@media (max-width: 760px){
  .nav-links{ display:none; }
  .nav-search{ display:none; }
  .nav-burger{ display:block; }
  .mobile-menu{ display: flex; }
  .phone-grid{ grid-template-columns: repeat(2,1fr); gap: 10px; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .hero h1{ font-size: 32px; }
  .compare-picker{ grid-template-columns: 1fr; }
  .picker-vs{ justify-self:center; }
  .spec-row{ grid-template-columns: 130px 1fr; }
  .brand-strip{ grid-template-columns: repeat(3,1fr); }
  .filter-toggle-btn{ display:inline-flex; margin-bottom: 14px; }
  .filter-panel{ display:none; }
  .filter-panel.is-open{ display:block; margin-bottom: 16px; }
  .compare-table{ display:block; overflow-x:auto; white-space:nowrap; }
}
@media (max-width: 480px){
  .phone-grid{ grid-template-columns: repeat(2,1fr); gap: 8px; }
  .brand-strip{ grid-template-columns: repeat(2,1fr); }
  .diff-phones{ grid-template-columns: 1fr auto 1fr; gap: 6px; }
  .hero{ padding: 36px 0 28px; }
}

/* =========================================================
   Admin panel — left sidebar layout
   ========================================================= */

/* Shell: sidebar + main side by side */
.admin-shell{
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto;
  background: var(--surface);
}

/* Sidebar */
.admin-sidebar{
  background: var(--ink);
  color: #fff;
  min-height: 100vh;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 40;
}
.admin-sidebar-brand{
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 17px;
  padding: 20px 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  letter-spacing: -0.02em;
}
.admin-sidebar-brand .brand-mark svg{
  filter: drop-shadow(0 0 8px rgba(29,155,240,0.5));
}
.admin-sidebar-section{
  padding: 18px 12px 8px;
}
.admin-sidebar-label{
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  padding: 0 8px;
  margin-bottom: 6px;
}
.admin-nav-link{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.65);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
  transition: background .12s ease, color .12s ease;
  text-decoration: none;
}
.admin-nav-link:hover{
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.admin-nav-link.active{
  background: rgba(255,255,255,0.13);
  color: #fff;
}
.admin-nav-link .nav-icon{
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex: none;
  opacity: 0.8;
}
.admin-nav-link.active .nav-icon{ opacity: 1; }

.admin-sidebar-footer{
  margin-top: auto;
  padding: 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.admin-sidebar-footer a,
.admin-sidebar-footer button{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.admin-sidebar-footer a:hover,
.admin-sidebar-footer button:hover{
  background: rgba(255,255,255,0.08);
  color: #fff;
}

/* Main content area */
.admin-main{
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.admin-topbar{
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 30;
}
.admin-topbar-title{
  font-size: 16px;
  font-weight: 700;
}
.admin-content{ padding: 28px 28px 60px; }

/* Stats row */
.admin-stats{ display:grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-bottom: 28px; }
.admin-stat{ background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px 20px; }
.admin-stat .num{ font-family: var(--font-mono); font-size: 26px; font-weight: 700; }
.admin-stat .label{ font-size: 13px; color: var(--slate); margin-top: 4px; }

/* Table card */
.admin-table-card{ background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.admin-table{ width: 100%; border-collapse: collapse; }
.admin-table th{ text-align:left; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--slate); padding: 12px 18px; border-bottom: 1px solid var(--line); }
.admin-table td{ padding: 13px 18px; border-bottom: 1px solid var(--line); font-size: 14px; }
.admin-table tr:last-child td{ border-bottom: none; }
.admin-table tr:hover td{ background: var(--surface); }
.admin-row-thumb{ width: 32px; height: 40px; background: var(--surface-2); border-radius: 6px; display:flex; align-items:center; justify-content:center; }
.admin-row-thumb svg{ width: 55%; height: 55%; }
.admin-row-name{ display:flex; align-items:center; gap: 10px; font-weight: 600; }
.admin-actions{ display:flex; gap: 8px; justify-content:flex-end; }
.admin-actions form{ display:inline; }

/* Toolbar */
.admin-toolbar{ display:flex; justify-content:space-between; align-items:center; margin-bottom: 18px; gap: 12px; }
.admin-toolbar form{ display:flex; gap: 8px; }
.admin-toolbar input[type=text]{
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  padding: 9px 16px; font-size: 13px; width: 240px;
  outline: none; font-family: inherit;
}
.admin-toolbar input[type=text]:focus{ border-color: var(--blue); }

/* Form card */
.admin-form-card{ background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 28px; max-width: 800px; }
.admin-form-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.admin-field{ display:flex; flex-direction:column; gap: 6px; }
.admin-field.full{ grid-column: 1 / -1; }
.admin-field label{ font-size: 13px; font-weight: 600; }
.admin-field .hint{ font-size: 12px; color: var(--slate); }
.admin-field input[type=text],
.admin-field input[type=number],
.admin-field input[type=email],
.admin-field input[type=password],
.admin-field input[type=file],
.admin-field select,
.admin-field textarea{
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 10px 12px; font-size: 14px; font-family: inherit; color: var(--ink);
  background: var(--bg); width: 100%;
}
.admin-field textarea{ font-family: var(--font-mono); font-size: 12.5px; min-height: 220px; resize: vertical; }
.admin-field input:focus, .admin-field select:focus, .admin-field textarea:focus{ outline:none; border-color: var(--blue); }
.admin-checkbox{ display:flex; align-items:center; gap: 8px; font-size: 14px; font-weight: 500; }
.admin-error{ color: var(--orange); font-size: 12.5px; margin-top: 2px; }
.admin-current-image{ width: 64px; height: 80px; border-radius: var(--radius-sm); background: var(--surface-2); display:flex; align-items:center; justify-content:center; margin-bottom: 8px; }
.admin-current-image img{ max-height: 90%; }
.admin-current-image svg{ width: 55%; height: 55%; }

/* Alerts */
.admin-status{
  background: var(--green-dim); color: var(--green);
  border-radius: var(--radius-sm); padding: 12px 16px;
  font-size: 13px; font-weight: 600; margin-bottom: 20px;
}
.admin-error-msg{
  background: var(--orange-dim); color: var(--orange);
  border-radius: var(--radius-sm); padding: 12px 16px;
  font-size: 13px; font-weight: 600; margin-bottom: 20px;
}

/* Login page */
.admin-login-wrap{ min-height: 100vh; display:flex; align-items:center; justify-content:center; background: var(--surface); }
.admin-login-card{ background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 36px; width: 380px; }
.admin-login-card h1{ font-size: 20px; margin-bottom: 4px; }
.admin-login-card p.lede{ color: var(--slate); font-size: 13px; margin-bottom: 24px; }
.admin-login-logo{ display:flex; align-items:center; gap: 9px; font-weight: 800; font-size: 18px; margin-bottom: 22px; }

/* Mobile: collapse sidebar to top bar */
.admin-mobile-toggle{ display: none; background: none; border: none; padding: 8px; cursor: pointer; }
@media (max-width: 900px){
  .admin-shell{ grid-template-columns: 1fr; }
  .admin-sidebar{
    position: fixed; left: -240px; top: 0; height: 100vh; z-index: 100;
    transition: left .2s ease;
  }
  .admin-sidebar.open{ left: 0; }
  .admin-main{ min-height: 100vh; }
  .admin-topbar{ padding: 0 16px; }
  .admin-mobile-toggle{ display: block; }
  .admin-content{ padding: 20px 16px 40px; }
  .admin-stats{ grid-template-columns: 1fr 1fr; }
  .admin-form-grid{ grid-template-columns: 1fr; }
}

/* Spec editor */
.spec-group-editor{
  border: 1px solid var(--line); border-radius: var(--radius-md);
  background: var(--surface); padding: 14px; margin-bottom: 12px;
}
.spec-group-editor-head{ display:flex; gap: 10px; align-items:center; margin-bottom: 10px; }
.spec-group-editor-head .spec-group-name{
  flex: 1; font-weight: 700; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 9px 12px; font-size: 14px; background: var(--bg);
}
.spec-group-editor-head .spec-group-name:focus{ outline:none; border-color: var(--blue); }
.spec-rows-editor{ display:flex; flex-direction:column; gap: 8px; margin-bottom: 10px; }
.spec-row-editor{ display:grid; grid-template-columns: 1fr 1fr auto; gap: 8px; align-items:center; }
.spec-row-editor input{
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 8px 10px; font-size: 13px; background: var(--bg); width: 100%;
}
.spec-row-editor input:focus{ outline:none; border-color: var(--blue); }
.remove-row-btn{
  background: none; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  width: 32px; height: 32px; color: var(--slate); font-size: 13px; flex: none; cursor: pointer;
}
.remove-row-btn:hover{ border-color: var(--orange); color: var(--orange); }
.remove-group-btn{ flex: none; color: var(--slate); }
.remove-group-btn:hover{ border-color: var(--orange); color: var(--orange); }
@media (max-width: 600px){
  .spec-row-editor{ grid-template-columns: 1fr; }
  .remove-row-btn{ width: 100%; }
}