/* =========================================================
   KV TOOLS — V8 DESIGN SYSTEM
   Premium dark / glass / motion / stronger hierarchy
   ========================================================= */

:root{
  --v8-surface:rgba(9,24,39,.70);
  --v8-surface-2:rgba(255,255,255,.045);
  --v8-border:rgba(148,163,184,.13);
  --v8-border-blue:rgba(96,165,250,.24);
  --v8-blue:#60a5fa;
  --v8-cyan:#22d3ee;
  --v8-violet:#8b5cf6;
  --v8-text:#f8fbff;
  --v8-muted:#8ea2ba;
  --v8-shadow:0 28px 90px rgba(0,0,0,.28);
}

html{scroll-padding-top:108px}

body{
  position:relative;
  overflow-x:hidden;
  background:
    radial-gradient(circle at 12% 8%,rgba(37,99,235,.18),transparent 26%),
    radial-gradient(circle at 88% 16%,rgba(34,211,238,.09),transparent 23%),
    radial-gradient(circle at 48% 72%,rgba(124,58,237,.06),transparent 28%),
    linear-gradient(180deg,#071523 0%,#06111f 45%,#040b14 100%);
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  opacity:.19;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.7),transparent 82%);
}

body::after{
  content:"";
  position:fixed;
  width:520px;
  height:520px;
  top:20%;
  left:50%;
  z-index:-1;
  transform:translateX(-50%);
  pointer-events:none;
  border-radius:50%;
  background:rgba(37,99,235,.055);
  filter:blur(90px);
}

/* ===== Header V8 ===== */

.kv-header{
  border-bottom:1px solid rgba(255,255,255,.065)!important;
  background:rgba(4,13,24,.76)!important;
  backdrop-filter:blur(28px) saturate(135%)!important;
  -webkit-backdrop-filter:blur(28px) saturate(135%)!important;
  box-shadow:0 16px 60px rgba(0,0,0,.16)!important;
}

.kv-header.is-scrolled{
  background:rgba(4,13,24,.91)!important;
  box-shadow:0 20px 70px rgba(0,0,0,.24)!important;
}

.kv-brand-mark{
  position:relative;
  overflow:hidden;
  border-radius:15px!important;
  background:linear-gradient(135deg,#2563eb,#0891b2 60%,#22d3ee)!important;
  box-shadow:0 12px 36px rgba(37,99,235,.30)!important;
}

.kv-brand-mark::after{
  content:"";
  position:absolute;
  inset:-60% 35% -60% -15%;
  transform:rotate(24deg) translateX(-130%);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  transition:transform .65s ease;
}

.kv-brand:hover .kv-brand-mark::after{
  transform:rotate(24deg) translateX(210%);
}

.kv-nav-link{
  border-radius:11px!important;
  transition:background .18s ease,color .18s ease,transform .18s ease!important;
}

.kv-nav-link:hover{
  transform:translateY(-1px);
  background:rgba(255,255,255,.055)!important;
}

.kv-dropdown,.kv-mega-menu{
  border-color:rgba(96,165,250,.13)!important;
  background:rgba(5,16,29,.94)!important;
  backdrop-filter:blur(28px) saturate(135%)!important;
  -webkit-backdrop-filter:blur(28px) saturate(135%)!important;
  box-shadow:0 28px 90px rgba(0,0,0,.34)!important;
}

/* ===== Homepage ===== */

.kv7-page{
  position:relative;
}

.kv7-wrap{
  width:min(1180px,calc(100% - 36px))!important;
}

.kv7-hero{
  position:relative;
  padding-top:86px!important;
  padding-bottom:58px!important;
}

.kv7-hero::before{
  content:"";
  position:absolute;
  width:620px;
  height:330px;
  top:12px;
  left:50%;
  transform:translateX(-50%);
  border-radius:50%;
  pointer-events:none;
  background:radial-gradient(circle,rgba(37,99,235,.18),rgba(34,211,238,.04) 42%,transparent 70%);
  filter:blur(14px);
}

.kv7-hero>*{
  position:relative;
  z-index:1;
}

.kv7-eyebrow{
  padding:8px 12px!important;
  border:1px solid rgba(96,165,250,.19)!important;
  border-radius:999px!important;
  background:rgba(37,99,235,.08)!important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}

.kv7-hero h1{
  max-width:900px;
  margin-left:auto!important;
  margin-right:auto!important;
  font-size:clamp(46px,7vw,78px)!important;
  line-height:.99!important;
  letter-spacing:-.062em!important;
  text-wrap:balance;
}

.kv7-gradient{
  background:linear-gradient(90deg,#fff 0%,#bfdbfe 38%,#67e8f9 68%,#a5b4fc 100%)!important;
  -webkit-background-clip:text!important;
  background-clip:text!important;
  color:transparent!important;
}

.kv7-search-shell{
  position:relative;
  max-width:760px!important;
  margin-top:30px!important;
  border:1px solid rgba(96,165,250,.18)!important;
  border-radius:17px!important;
  background:rgba(6,17,31,.68)!important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.05),
    0 22px 65px rgba(0,0,0,.18),
    0 0 0 6px rgba(37,99,235,.025);
  backdrop-filter:blur(18px);
}

.kv7-search-shell:focus-within{
  border-color:rgba(96,165,250,.42)!important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.06),
    0 24px 75px rgba(0,0,0,.22),
    0 0 0 5px rgba(37,99,235,.08)!important;
}

.kv7-meta{
  gap:10px!important;
}

.kv7-meta span{
  padding:7px 10px;
  border:1px solid rgba(255,255,255,.055);
  border-radius:999px;
  background:rgba(255,255,255,.025);
}

/* ===== Cards ===== */

.kv7-grid{
  gap:17px!important;
}

.kv7-tool-card,
.kvcat-card,
.kv-related-card,
.kvresources-grid a{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-color:rgba(255,255,255,.075)!important;
  background:
    linear-gradient(145deg,rgba(255,255,255,.052),rgba(255,255,255,.018))!important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.035),
    0 18px 50px rgba(0,0,0,.09)!important;
  transition:
    transform .24s cubic-bezier(.2,.8,.2,1),
    border-color .24s ease,
    box-shadow .24s ease,
    background .24s ease!important;
}

.kv7-tool-card::before,
.kvcat-card::before{
  content:"";
  position:absolute;
  z-index:-1;
  width:180px;
  height:180px;
  top:-110px;
  right:-90px;
  border-radius:50%;
  background:rgba(37,99,235,.10);
  filter:blur(12px);
  transition:transform .35s ease,background .35s ease;
}

.kv7-tool-card:hover,
.kvcat-card:hover,
.kv-related-card:hover,
.kvresources-grid a:hover{
  transform:translateY(-6px)!important;
  border-color:rgba(96,165,250,.28)!important;
  background:
    linear-gradient(145deg,rgba(37,99,235,.11),rgba(255,255,255,.025))!important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.05),
    0 28px 70px rgba(0,0,0,.20)!important;
}

.kv7-tool-card:hover::before,
.kvcat-card:hover::before{
  transform:scale(1.35);
  background:rgba(34,211,238,.12);
}

.kv7-tool-icon,.kvcat-icon,.kv-related-icon{
  border:1px solid rgba(96,165,250,.15)!important;
  background:
    linear-gradient(145deg,rgba(37,99,235,.22),rgba(8,145,178,.09))!important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}

.kv7-card-link,.kvcat-open,.kv-related-open{
  color:#bfdbfe!important;
}

/* Favorite button injected by JS */
.kv-favorite-btn{
  position:absolute;
  top:15px;
  right:15px;
  z-index:5;
  width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(255,255,255,.08);
  border-radius:10px;
  color:#7f93aa;
  background:rgba(4,13,24,.56);
  backdrop-filter:blur(10px);
  cursor:pointer;
  opacity:0;
  transform:translateY(-3px);
  transition:.18s ease;
}

.kv7-tool-card:hover .kv-favorite-btn,
.kvcat-card:hover .kv-favorite-btn,
.kv-favorite-btn.is-favorite{
  opacity:1;
  transform:none;
}

.kv-favorite-btn:hover,
.kv-favorite-btn.is-favorite{
  color:#fde68a;
  border-color:rgba(250,204,21,.23);
  background:rgba(113,63,18,.18);
}

/* ===== Tool pages ===== */

.hero{
  position:relative;
  padding-top:76px!important;
  padding-bottom:38px!important;
}

.hero::before{
  content:"";
  position:absolute;
  width:470px;
  height:240px;
  top:10px;
  left:50%;
  transform:translateX(-50%);
  z-index:-1;
  border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,.13),transparent 68%);
  filter:blur(16px);
}

.hero h1{
  font-size:clamp(40px,5.7vw,68px)!important;
  letter-spacing:-.055em!important;
  text-wrap:balance;
}

.tool-box{
  position:relative;
  overflow:hidden;
  border-color:rgba(96,165,250,.12)!important;
  border-radius:22px!important;
  background:
    radial-gradient(circle at 5% 0%,rgba(37,99,235,.08),transparent 26%),
    linear-gradient(145deg,rgba(255,255,255,.05),rgba(255,255,255,.018))!important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.04),
    0 26px 80px rgba(0,0,0,.18)!important;
}

.tool-box input,
.tool-box textarea,
.tool-box select,
.big-input,
.big-textarea{
  border-color:rgba(255,255,255,.09)!important;
  background:rgba(3,12,22,.40)!important;
}

.generate{
  border:1px solid rgba(125,211,252,.15)!important;
  background:linear-gradient(135deg,#2563eb,#0e7490 70%,#0891b2)!important;
  box-shadow:0 14px 34px rgba(37,99,235,.22)!important;
}

.generate:hover{
  transform:translateY(-2px) scale(1.01)!important;
  box-shadow:0 18px 42px rgba(37,99,235,.30)!important;
}

/* ===== New personal dashboard blocks ===== */

.kv-personal-section{
  margin:20px 0 42px;
  display:none;
}

.kv-personal-section.is-visible{
  display:block;
}

.kv-personal-head{
  margin-bottom:14px;
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
}

.kv-personal-head h2{
  margin:0;
  color:#fff;
  font-size:22px;
  letter-spacing:-.035em;
}

.kv-personal-head p{
  margin:5px 0 0;
  color:#7f93aa;
  font-size:11px;
}

.kv-personal-clear{
  border:0;
  color:#7f93aa;
  background:transparent;
  font:inherit;
  font-size:10px;
  font-weight:800;
  cursor:pointer;
}

.kv-personal-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:11px;
}

.kv-personal-card{
  min-width:0;
  padding:15px;
  display:flex;
  align-items:center;
  gap:11px;
  border:1px solid rgba(255,255,255,.07);
  border-radius:14px;
  color:inherit;
  background:rgba(255,255,255,.025);
  text-decoration:none;
  transition:.18s ease;
}

.kv-personal-card:hover{
  transform:translateY(-2px);
  border-color:rgba(96,165,250,.22);
  background:rgba(37,99,235,.075);
}

.kv-personal-card-icon{
  width:38px;
  height:38px;
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:rgba(37,99,235,.11);
}

.kv-personal-card strong{
  display:block;
  color:#e9f2fc;
  font-size:11px;
  line-height:1.35;
}

.kv-personal-card small{
  display:block;
  margin-top:3px;
  color:#70849b;
  font-size:9px;
}

/* ===== Floating actions ===== */

.kv-v8-fab{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:9500;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.kv-v8-fab button{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(96,165,250,.15);
  border-radius:13px;
  color:#bfdbfe;
  background:rgba(5,16,29,.80);
  box-shadow:0 14px 38px rgba(0,0,0,.22);
  backdrop-filter:blur(16px);
  cursor:pointer;
  transition:.18s ease;
}

.kv-v8-fab button:hover{
  transform:translateY(-2px);
  border-color:rgba(96,165,250,.32);
  background:rgba(37,99,235,.17);
}

.kv-v8-top{
  opacity:0;
  pointer-events:none;
  transform:translateY(7px);
}

.kv-v8-top.is-visible{
  opacity:1;
  pointer-events:auto;
  transform:none;
}

/* ===== Footer refinement ===== */

.kv-footer{
  margin-top:55px!important;
  background:
    radial-gradient(circle at 15% 0%,rgba(37,99,235,.12),transparent 28%),
    linear-gradient(180deg,rgba(4,13,24,.76),#030912)!important;
}

.kv-footer-inner{
  padding-top:52px!important;
}

/* ===== Reveal animation ===== */

.kv-v8-reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s ease,transform .55s cubic-bezier(.2,.8,.2,1);
}

.kv-v8-reveal.is-visible{
  opacity:1;
  transform:none;
}

@media(max-width:900px){
  .kv-personal-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:620px){
  .kv7-wrap{width:calc(100% - 26px)!important}
  .kv7-hero{padding-top:58px!important}
  .kv7-hero h1{font-size:clamp(40px,13vw,58px)!important}
  .kv7-meta span{font-size:9px}
  .kv-personal-grid{grid-template-columns:1fr}
  .kv-favorite-btn{opacity:1;transform:none}
  .kv-v8-fab{right:13px;bottom:13px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    scroll-behavior:auto!important;
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .kv-v8-reveal{opacity:1!important;transform:none!important}
}

/* ========================================================= SPRINT 8.1 — PRO & MONETISATION ========================================================= */
.kv-pro-page{max-width:1180px}.kv-pro-hero{padding:105px 0 75px;text-align:center}.kv-pro-kicker,.kv-pro-section-head>span,.kv-pro-preview>div>span,.kv-pro-final>span{display:inline-block;color:#67e8f9;font-size:10px;font-weight:950;letter-spacing:.18em}.kv-pro-hero h1{margin:18px auto 20px;max-width:980px;color:#fff;font-size:clamp(48px,7vw,82px);line-height:.98;letter-spacing:-.065em}.kv-pro-hero h1 span{background:linear-gradient(90deg,#93c5fd,#67e8f9,#c4b5fd);-webkit-background-clip:text;background-clip:text;color:transparent}.kv-pro-hero>p{max-width:690px;margin:0 auto;color:#8fa2b9;font-size:15px;line-height:1.75}.kv-pro-price{margin:28px auto 20px;display:flex;align-items:baseline;justify-content:center;gap:10px}.kv-pro-price strong{color:#fff;font-size:35px;letter-spacing:-.05em}.kv-pro-price span{color:#8fa2b9;font-size:10px}.kv-pro-price del{color:#52677e;font-size:12px}.kv-pro-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.kv-pro-buy,.kv-pro-secondary{min-height:48px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;font-size:11px;font-weight:900;text-decoration:none}.kv-pro-buy{color:#fff;background:linear-gradient(135deg,#2563eb,#0891b2);box-shadow:0 16px 40px rgba(37,99,235,.25)}.kv-pro-secondary{border:1px solid rgba(255,255,255,.09);color:#a9bad0;background:rgba(255,255,255,.025)}.kv-pro-payment-note{margin-top:14px!important;color:#60768d!important;font-size:10px!important}.kv-pro-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:70px}.kv-pro-kpis>div{padding:25px;border:1px solid rgba(96,165,250,.12);border-radius:17px;text-align:center;background:rgba(255,255,255,.025)}.kv-pro-kpis strong,.kv-pro-kpis span{display:block}.kv-pro-kpis strong{color:#eaf4ff;font-size:25px}.kv-pro-kpis span{margin-top:5px;color:#71869d;font-size:10px}.kv-pro-section{margin:70px 0}.kv-pro-section-head{max-width:690px;margin-bottom:25px}.kv-pro-section-head h2{margin:10px 0 0;color:#fff;font-size:clamp(30px,4vw,48px);line-height:1.08;letter-spacing:-.05em}.kv-pro-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.kv-pro-feature-grid article{padding:24px;border:1px solid rgba(255,255,255,.07);border-radius:17px;background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.015))}.kv-pro-feature-grid b{color:#3b82f6;font-size:10px}.kv-pro-feature-grid h3{margin:16px 0 8px;color:#eef6ff;font-size:16px}.kv-pro-feature-grid p{margin:0;color:#758aa1;font-size:11px;line-height:1.6}.kv-pro-preview{margin:85px 0;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:55px}.kv-pro-preview h2{margin:12px 0;color:#fff;font-size:38px;line-height:1.08;letter-spacing:-.05em}.kv-pro-preview p{color:#7d91a8;font-size:12px;line-height:1.7}.kv-pro-sheet{overflow:hidden;border:1px solid rgba(96,165,250,.17);border-radius:18px;background:#071523;box-shadow:0 30px 80px rgba(0,0,0,.28)}.kv-pro-sheet-top{height:42px;padding:0 14px;display:flex;align-items:center;gap:7px;border-bottom:1px solid rgba(255,255,255,.06);background:rgba(255,255,255,.025)}.kv-pro-sheet-top i{width:8px;height:8px;border-radius:50%;background:#334a60}.kv-pro-sheet-top span{margin-left:8px;color:#71869d;font-size:9px}.kv-pro-sheet-grid{padding:20px;display:grid;grid-template-columns:1fr auto;gap:1px}.kv-pro-sheet-grid b,.kv-pro-sheet-grid strong{padding:13px;border-bottom:1px solid rgba(255,255,255,.05);font-size:11px}.kv-pro-sheet-grid b{color:#7f94aa}.kv-pro-sheet-grid strong{color:#bfdbfe;text-align:right}.kv-pro-faq details{margin-bottom:9px;padding:16px 18px;border:1px solid rgba(255,255,255,.07);border-radius:13px;background:rgba(255,255,255,.02)}.kv-pro-faq summary{color:#dbeafe;font-size:12px;font-weight:850;cursor:pointer}.kv-pro-faq details p{margin:12px 0 0;color:#758aa1;font-size:11px;line-height:1.65}.kv-pro-final{margin:90px 0 35px;padding:55px 30px;border:1px solid rgba(96,165,250,.17);border-radius:24px;text-align:center;background:radial-gradient(circle at 50% 0%,rgba(37,99,235,.18),transparent 55%),rgba(255,255,255,.02)}.kv-pro-final h2{max-width:720px;margin:12px auto 22px;color:#fff;font-size:clamp(32px,4.5vw,54px);line-height:1.05;letter-spacing:-.055em}.kv-pro-final p{color:#8297ae;font-size:11px}.kv-pro-final code{color:#bfdbfe}.kv-pro-inline-cta{margin:28px 0;padding:22px;display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid rgba(96,165,250,.14);border-radius:16px;background:linear-gradient(135deg,rgba(37,99,235,.10),rgba(34,211,238,.035))}.kv-pro-inline-cta strong,.kv-pro-inline-cta span{display:block}.kv-pro-inline-cta strong{color:#eef6ff;font-size:14px}.kv-pro-inline-cta span{margin-top:4px;color:#71869d;font-size:10px}.kv-pro-inline-cta a{flex:0 0 auto;padding:10px 14px;border-radius:10px;color:#dbeafe;background:rgba(37,99,235,.18);font-size:10px;font-weight:900;text-decoration:none}.kv-ad-zone{max-width:970px;margin:32px auto;padding-top:17px;border-top:1px solid rgba(255,255,255,.055)}.kv-ad-label{display:block;margin-bottom:8px;color:#53677d;font-size:8px;text-align:center;text-transform:uppercase;letter-spacing:.12em}@media(max-width:800px){.kv-pro-feature-grid{grid-template-columns:repeat(2,1fr)}.kv-pro-preview{grid-template-columns:1fr}.kv-pro-kpis{grid-template-columns:1fr}}@media(max-width:560px){.kv-pro-feature-grid{grid-template-columns:1fr}.kv-pro-hero{padding-top:70px}.kv-pro-inline-cta{align-items:flex-start;flex-direction:column}}

/* Sprint 8.2 — Stripe test state */
.kv-pro-test-badge{display:inline-flex;margin:10px 0 0;padding:7px 10px;border:1px solid rgba(250,204,21,.2);border-radius:999px;color:#fde68a;background:rgba(113,63,18,.14);font-size:10px;font-weight:900;letter-spacing:.04em}
.kv-pro-success-box{max-width:720px;margin:24px auto;padding:18px;border:1px solid rgba(96,165,250,.15);border-radius:16px;background:rgba(37,99,235,.07);text-align:left}.kv-pro-success-box strong{color:#bfdbfe}.kv-pro-success-box p{margin:7px 0 0!important;font-size:12px!important}