:root{
  --bg:#050505;
  --bg-soft:#0d0d0f;
  --card:rgba(255,255,255,0.04);
  --card-strong:rgba(255,255,255,0.07);
  --line:rgba(255,255,255,0.12);
  --line-strong:rgba(255,255,255,0.18);
  --white:#f7f7f7;
  --muted:#a1a1aa;
  --accent:#ffffff;
  --shadow:0 20px 60px rgba(0,0,0,.32);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--bg);
  color:var(--white);
  font-family:"Inter", Arial, Helvetica, sans-serif;
}

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

.container{
  width:min(1180px, 92vw);
  margin:0 auto;
}

.bg-grid{
  position:fixed;
  inset:0;
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size:36px 36px;
  mask-image:radial-gradient(circle at center, rgba(0,0,0,1), rgba(0,0,0,.1));
  pointer-events:none;
  z-index:-1;
}

/* =========================
   HEADER
========================= */

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,5,5,.78);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}

.nav-wrap{
  min-height:84px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
}

.brand-logo{
  height:80px;
  width:auto;
}

.nav{
  display:flex;
  gap:22px;
  align-items:center;
}

.nav a{
  color:#d8d8d8;
  font-size:.96rem;
}

.nav a:hover{
  color:#fff;
}

/* =========================
   HEADER SEARCH
========================= */

.header-search{
  display:flex;
  align-items:center;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,0.05);
  transition:.2s ease;
}

.header-search:focus-within{
  border-color:rgba(255,255,255,0.25);
  box-shadow:0 0 0 3px rgba(255,255,255,0.05);
}

#headerCertInput{
  height:44px;
  width:220px;
  padding:0 14px;
  border:none;
  background:transparent;
  color:#fff;
  font-size:.9rem;
  outline:none;
}

#headerCertInput::placeholder{
  color:rgba(255,255,255,0.4);
}

.header-search-btn{
  height:44px;
  padding:0 16px;
  border:none;
  border-left:1px solid var(--line);
  background:#fff;
  color:#000;
  font-weight:600;
  font-size:.9rem;
  cursor:pointer;
  transition:.2s ease;
}

.header-search-btn:hover{
  background:#eaeaea;
}

/* =========================
   BUTTONS
========================= */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 18px;
  border-radius:14px;
  font-weight:700;
  transition:.2s ease;
  cursor:pointer;
  border:1px solid transparent;
}

.btn-solid{
  background:#fff;
  color:#000;
}

.btn-solid:hover{
  transform:translateY(-1px);
}

.btn-outline{
  border-color:var(--line-strong);
  background:transparent;
  color:#fff;
}

.btn-outline:hover{
  background:rgba(255,255,255,0.05);
}

.btn-light{
  border-color:var(--line-strong);
  background:rgba(255,255,255,0.05);
  color:#fff;
}

/* =========================
   HERO
========================= */

.hero{
  padding:96px 0 70px;
}

.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:42px;
  align-items:center;
}

.eyebrow{
  margin:0 0 14px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:.78rem;
}

h1{
  margin:0 0 16px;
  font-size:clamp(2.4rem, 5vw, 5.2rem);
  line-height:.95;
  letter-spacing:-.06em;
}

.lead{
  margin:0;
  color:#d4d4d8;
  font-size:1.05rem;
  line-height:1.7;
  max-width:680px;
}

.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin:28px 0;
}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  max-width:720px;
}

.hero-stats div{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:20px;
  padding:16px 18px;
}

.hero-stats strong{
  display:block;
  font-size:1.1rem;
}

.hero-stats span{
  color:var(--muted);
  font-size:.9rem;
}

/* =========================
   HERO CARD
========================= */

.floating-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border-radius:30px;
  padding:8px;
  box-shadow:var(--shadow);
}

.card-topline{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:8px;
  color:#d5d5d5;
  font-size:.88rem;
}

.flip-card{
  width:min(100%, 500px);
  aspect-ratio:0.714 / 1;
  perspective:1200px;
  margin:0 auto;
}

.flip-card-inner{
  position:relative;
  width:100%;
  height:100%;
  transition:transform .8s cubic-bezier(.2,.7,.2,1);
  transform-style:preserve-3d;
}

.flip-card:hover .flip-card-inner{
  transform:rotateY(180deg);
}

.flip-card-front,
.flip-card-back{
  position:absolute;
  inset:0;
  backface-visibility:hidden;
  border-radius:24px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 20px 40px rgba(0,0,0,.28);
}

.flip-card-front img,
.flip-card-back img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.flip-card-back{
  transform:rotateY(180deg);
}

.hover-note{
  margin:14px 0 0;
  color:var(--muted);
  text-align:center;
  font-size:.92rem;
}

/* =========================
   TRUST BAR
========================= */

.trust-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,0.03);
}

.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}

.trust-grid div{
  padding:18px 12px;
  text-align:center;
  border-right:1px solid var(--line);
}

.trust-grid div:last-child{
  border-right:none;
}

.trust-grid span{
  color:#d8d8d8;
  font-weight:600;
}

/* =========================
   GENERIC SECTIONS
========================= */

.section{
  padding:82px 0;
}

.section.alt{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.00));
}

.section-heading{
  text-align:center;
  max-width:760px;
  margin:0 auto 34px;
}

.section-heading.left{
  text-align:left;
  margin:0;
}

.section-heading h2{
  margin:0 0 12px;
  font-size:clamp(2rem, 4vw, 3.4rem);
  line-height:.98;
  letter-spacing:-.05em;
}

.section-heading p:last-child{
  margin:0;
  color:#d0d0d5;
  line-height:1.7;
}

/* =========================
   GRADES
========================= */

.grades-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:24px;
  align-items:stretch;
}

.grade-card{
  min-height:335px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.02);
  border-radius:28px;
  padding:28px 24px;
  display:flex;
  flex-direction:column;
  text-align:center;
}

.grade-card .grade-number{
  font-size:3.2rem;
  line-height:1;
  font-weight:800;
  margin-bottom:10px;
}

.grade-card h3{
  margin:0 0 16px;
  font-size:1rem;
  min-height:52px;
  display:flex;
  align-items:center;
  justify-content:center;
}

.grade-card p{
  margin:0;
  color:#a7a7b3;
  line-height:1.55;
  max-width:220px;
  margin-left:auto;
  margin-right:auto;
}

.grade-card .grade-rule{
  margin-top:auto;
  align-self:center;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.14);
  font-weight:600;
}

/* =========================
   PRICING
========================= */

.pricing-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}

.pricing-card{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:28px;
  padding:28px;
}

.pricing-card.featured{
  border-color:rgba(255,255,255,0.22);
  background:linear-gradient(180deg, rgba(255,255,255,0.11), rgba(255,255,255,0.04));
}

.plan-tag{
  margin:0 0 14px;
  color:var(--muted);
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:.78rem;
}

.pricing-card h3{
  font-size:2.5rem;
  margin:0 0 18px;
}

.pricing-card ul{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:10px;
}

.pricing-card li{
  padding-left:18px;
  position:relative;
  color:#dedee2;
}

.pricing-card li::before{
  content:"•";
  position:absolute;
  left:0;
  top:0;
}

/* =========================
   VERIFY SEARCH SECTION
========================= */

.verification-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:26px;
  align-items:center;
}

.verify-box{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:28px;
  padding:26px;
  display:grid;
  gap:12px;
}

.verify-box label{
  font-size:.92rem;
  color:#d9d9de;
}

.verify-form{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.verify-form input{
  flex:1 1 320px;
  min-height:52px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  color:#fff;
  padding:0 14px;
  font-size:1rem;
}

.verify-result{
  min-height:24px;
  color:#d6d6db;
}

.verify-help{
  margin:0;
  color:var(--muted);
  line-height:1.6;
}

/* =========================
   FAQ
========================= */

.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px;
}

.faq-card{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:24px;
  padding:22px;
}

.faq-card h3{
  margin-top:0;
  margin-bottom:10px;
}

.faq-card p{
  margin:0;
  color:#d0d0d5;
  line-height:1.7;
}

/* =========================
   CONTACT
========================= */

.contact-card{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:30px;
  padding:30px;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:28px;
}

.contact-info p{
  margin:0 0 10px;
  color:#d7d7dc;
}

/* =========================
   REVIEWS HIDDEN
========================= */

#reviews{
  display:none;
}

.nav a[href="#reviews"]{
  display:none;
}

/* =========================
   PROCESS
========================= */

.process-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  align-items:start;
}

.process-steps{
  display:grid;
  gap:18px;
}

.process-card,
.process-visual-card{
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  border-radius:28px;
  padding:24px;
  box-shadow:var(--shadow);
}

.process-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  font-weight:800;
  margin-bottom:14px;
  color:var(--white);
}

.process-card h3,
.process-visual-card h3{
  margin-top:0;
  margin-bottom:10px;
}

.process-card p,
.process-visual-copy{
  margin:0;
  color:#d0d0d5;
  line-height:1.7;
}

.process-visual-label{
  margin:0 0 10px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.8rem;
}

/* =========================
   IMAGE COMPARE
========================= */

.image-compare{
  position:relative;
  width:100%;
  max-width:520px;
  aspect-ratio:3 / 4;
  margin-top:22px;
  overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line);
  background:#111;
  user-select:none;
}

.compare-base,
.compare-top{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.compare-base{
  z-index:1;
}

.compare-top{
  z-index:2;
  clip-path:inset(0 0 0 50%);
}

.compare-divider{
  position:absolute;
  top:0;
  left:50%;
  width:2px;
  height:100%;
  background:rgba(255,255,255,0.92);
  transform:translateX(-50%);
  cursor:ew-resize;
  z-index:4;
  box-shadow:0 0 12px rgba(255,255,255,0.25);
}

.compare-handle{
  position:absolute;
  top:50%;
  left:50%;
  width:44px;
  height:44px;
  transform:translate(-50%, -50%);
  border-radius:999px;
  background:#fff;
  box-shadow:0 8px 20px rgba(0,0,0,0.25);
}

.compare-handle::before,
.compare-handle::after{
  content:"";
  position:absolute;
  top:50%;
  width:8px;
  height:8px;
  border-top:2px solid #000;
  border-right:2px solid #000;
}

.compare-handle::before{
  left:11px;
  transform:translateY(-50%) rotate(225deg);
}

.compare-handle::after{
  right:11px;
  transform:translateY(-50%) rotate(45deg);
}

.compare-tag{
  position:absolute;
  bottom:18px;
  z-index:5;
  background:rgba(20,20,20,0.88);
  color:#fff;
  padding:8px 12px;
  border-radius:10px;
  font-size:.85rem;
  line-height:1;
  box-shadow:0 8px 20px rgba(0,0,0,0.2);
}

.compare-tag-left{
  left:16px;
}

.compare-tag-right{
  right:16px;
}

/* =========================
   HOW TO PREPARE
========================= */

.prepare-page{
  display:grid;
  gap:36px;
}

.prepare-hero{
  max-width:760px;
}

.prepare-hero h1{
  margin:0 0 14px;
  font-size:clamp(2.2rem, 4vw, 4rem);
  line-height:.98;
  letter-spacing:-.05em;
}

.prepare-lead{
  margin:0;
  color:#d0d0d5;
  line-height:1.75;
  font-size:1.02rem;
}

.prepare-grid{
  display:grid;
  grid-template-columns:0.95fr 1.05fr;
  gap:26px;
  align-items:start;
}

.prepare-image-card{
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  border-radius:28px;
  padding:14px;
  box-shadow:var(--shadow);
  overflow:hidden;
}

.prepare-image{
  width:100%;
  display:block;
  border-radius:20px;
  transition:transform .4s ease;
}

.prepare-image-card:hover .prepare-image{
  transform:scale(1.04);
}

.prepare-steps{
  display:grid;
  gap:16px;
}

.prepare-step-card{
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  border-radius:22px;
  padding:18px;
  display:grid;
  grid-template-columns:52px 1fr;
  gap:16px;
  align-items:start;
  box-shadow:var(--shadow);
  transition:all .2s ease;
}

.prepare-step-card:hover{
  transform:translateY(-3px);
  border-color:rgba(255,255,255,0.25);
  background:rgba(255,255,255,0.05);
}

.prepare-step-number{
  width:52px;
  height:52px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.05);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:1rem;
  color:var(--white);
}

.prepare-step-card h3{
  margin:2px 0 8px;
  font-size:1.05rem;
}

.prepare-step-card p{
  margin:0;
  color:#d0d0d5;
  line-height:1.65;
}

.prepare-note-box{
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  border-radius:28px;
  padding:22px;
  box-shadow:var(--shadow);
}

.prepare-note-box h2{
  margin:0 0 14px;
  font-size:1.5rem;
}

.prepare-note-box ul{
  margin:0;
  padding-left:18px;
  color:#d0d0d5;
  line-height:1.9;
}

.prepare-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

/* =========================
   SUBMIT PAGE
========================= */

.submit-page{
  display:grid;
  gap:36px;
}

.submit-hero{
  max-width:760px;
}

.submit-hero h1{
  margin:0 0 14px;
  font-size:clamp(2.2rem, 4vw, 4rem);
  line-height:.98;
  letter-spacing:-.05em;
}

.submit-lead{
  margin:0;
  color:#d0d0d5;
  line-height:1.75;
  font-size:1.02rem;
}

.submit-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:26px;
  align-items:start;
}

.submit-form-card,
.submit-info-card,
.submit-steps-card,
.submit-note-card{
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  border-radius:28px;
  padding:24px;
  box-shadow:var(--shadow);
}

.submit-form{
  display:grid;
  gap:18px;
}

.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}

.form-group{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.form-group label{
  font-size:.92rem;
  color:#d8d8de;
}

.form-group input,
.form-group select,
.form-group textarea{
  width:100%;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  color:var(--white);
  padding:14px;
  font-size:.96rem;
  outline:none;
  transition:border-color .2s ease, background .2s ease;
  font-family:inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:rgba(255,255,255,0.24);
  background:rgba(255,255,255,0.06);
}

.form-group textarea{
  resize:vertical;
  min-height:120px;
}

.submit-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:4px;
}

.submit-side{
  display:grid;
  gap:20px;
}

.submit-info-label{
  margin:0 0 10px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.8rem;
}

.submit-info-card h2{
  margin:0 0 12px;
  font-size:1.7rem;
  line-height:1.05;
}

.submit-info-card p,
.submit-step-item p,
.submit-note-card li{
  color:#d0d0d5;
  line-height:1.7;
}

.submit-steps-card{
  display:grid;
  gap:18px;
}

.submit-step-item{
  display:grid;
  grid-template-columns:52px 1fr;
  gap:14px;
  align-items:start;
}

.submit-step-item span{
  width:52px;
  height:52px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.05);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  color:var(--white);
}

.submit-step-item h3,
.submit-note-card h3{
  margin:2px 0 8px;
}

.submit-step-item p{
  margin:0;
}

.submit-note-card ul{
  margin:0;
  padding-left:18px;
  display:grid;
  gap:8px;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width:1200px){
  .grades-grid{
    grid-template-columns:repeat(3,1fr);
  }
}

@media (max-width:1050px){
  .hero-grid,
  .verification-layout,
  .process-grid{
    grid-template-columns:1fr;
  }

  .image-compare{
    max-width:100%;
  }
}

@media (max-width:980px){
  .prepare-grid,
  .submit-grid{
    grid-template-columns:1fr;
  }

  .prepare-image-card{
    order:-1;
  }

  .form-row{
    grid-template-columns:1fr;
  }
}

@media (max-width:820px){
  .nav{
    display:none;
  }

  .hero-stats,
  .trust-grid,
  .pricing-grid,
  .faq-grid{
    grid-template-columns:1fr;
  }

  .grades-grid{
    grid-template-columns:1fr;
  }

  .contact-card{
    flex-direction:column;
  }

  .brand-logo{
    height:38px;
  }

  .header-search{
    width:100%;
  }

  #headerCertInput{
    width:100%;
  }
}

@media (max-width:768px){
  .grade-card{
    min-height:auto;
  }

  .grade-card h3{
    min-height:auto;
  }
}