/* =========================================================
   CEVAL – MAIN STYLESHEET (FINAL / STABLE)
   ========================================================= */

:root{
  --bg:#070b16;
  --panel:rgba(255,255,255,.04);
  --panel-2:rgba(255,255,255,.06);
  --stroke:rgba(255,255,255,.10);

  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.68);
  --faint:rgba(255,255,255,.54);

  --brand:#6366f1;
  --brand-2:#22c55e;
  --brand-3:#f59e0b;

  --shadow:0 20px 50px rgba(0,0,0,.55);
  --shadow-soft:0 12px 30px rgba(0,0,0,.35);

  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-pill:999px;

  --max:1120px;
  --focus:0 0 0 4px rgba(99,102,241,.25);
}

/* ================= RESET ================= */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 600px at 20% 0%,rgba(99,102,241,.18),transparent 55%),
    radial-gradient(900px 600px at 85% 10%,rgba(34,197,94,.10),transparent 50%),
    radial-gradient(900px 600px at 50% 95%,rgba(245,158,11,.08),transparent 55%),
    var(--bg);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;text-decoration:none}

/* ================= NAVBAR ================= */
.nav{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}

.nav__inner{
  max-width:var(--max);
  margin:auto;
  padding:.9rem 1.25rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.75rem;
}

.brand__mark{
  width:38px;
  height:38px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:radial-gradient(circle at 30% 25%,#fff,#6366f1 45%,#070b16 88%);
  box-shadow:0 10px 28px rgba(0,0,0,.55);
  color:#070b16;
  font-weight:800;
}

.brand__text strong{
  font-size:.95rem;
  letter-spacing:.12em;
  text-transform:uppercase;
}

.brand__text span{
  font-size:.8rem;
  color:var(--muted);
}

.nav__actions{
  display:flex;
  align-items:center;
  gap:.6rem;
  flex-wrap:wrap;
}

/* ================= BUTTONS ================= */
.btn{
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);
  color:var(--text);
  padding:.48rem .92rem;
  border-radius:var(--radius-pill);
  font-weight:600;
  font-size:.85rem;
  cursor:pointer;
  transition:.15s ease;
}
.btn:hover{border-color:var(--brand);transform:translateY(-1px)}
.btn:active{transform:none}

.btn--primary{
  border:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 14px 32px rgba(99,102,241,.3);
}
.btn--primary:hover{box-shadow:0 18px 40px rgba(99,102,241,.4)}

/* ================= LAYOUT ================= */
.wrap{
  max-width:var(--max);
  margin:auto;
  padding:1.6rem 1.25rem 2.25rem;
}

/* ================= HERO ================= */
.hero{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:1.4rem;
  padding:1.25rem;
  border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  box-shadow:var(--shadow-soft);
}

.hero h1{
  margin:0 0 .55rem;
  font-size:clamp(1.9rem,2.6vw,2.35rem);
  letter-spacing:-.02em;
}

.hero p{color:var(--muted)}

.hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  margin:.8rem 0 1rem;
}

.tag{
  padding:.32rem .7rem;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  font-size:.82rem;
  color:var(--muted);
}

.hero__note{
  font-size:.88rem;
  color:rgba(199,210,254,.92);
}

.hero__media{
  border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.10);
  padding:.7rem;
  box-shadow:var(--shadow);
}

.hero__media img{
  width:100%;
  border-radius:16px;
  display:block;
}

.hero__caption{
  margin-top:.55rem;
  font-size:.78rem;
  color:var(--faint);
  text-align:center;
}

/* ================= TABS ================= */
.tabs{margin-top:1.35rem}

.tabs__top{
  text-align:left; /* FIXED */
  margin:1.15rem 0 .9rem;
}

.tabs__top h2{
  margin:0 0 .35rem;
  font-size:1.1rem;
}

.tabs__top p{
  margin:0;
  color:var(--muted);
  font-size:.9rem;
}

.segmented{
  display:inline-flex;
  gap:.35rem;
  padding:.35rem;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  margin-top:.85rem;
}

.segmented button{
  border:0;
  background:transparent;
  padding:.6rem 1rem;
  border-radius:var(--radius-pill);
  color:var(--muted);
  font-weight:700;
  font-size:.82rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  cursor:pointer;
}

.segmented button[aria-selected="true"]{
  background:rgba(99,102,241,.20);
  color:#fff;
}

.tabs__sub{
  margin-top:.75rem;
  display:flex;
  gap:.6rem;
  justify-content:flex-start; /* FIXED */
  color:var(--muted);
  font-size:.86rem;
}

.link-btn{
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.03);
  padding:.42rem .8rem;
  border-radius:var(--radius-pill);
  cursor:pointer;
  font-size:.82rem;
}

/* ================= PANELS & CARDS ================= */
.panel{display:none}
.panel.is-active{display:block}

.panel__intro{
  max-width:56rem;
  margin:0 0 1rem;
  color:var(--muted);
  font-size:.92rem;
}

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

.card{
  border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  padding:1.05rem;
  display:flex;
  flex-direction:column;
  gap:.6rem;
  transition:.15s ease;
}

.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow);
}

.card h3{margin:0}
.card .desc{color:var(--muted);font-size:.86rem}

.badge{
  width:fit-content;
  padding:.22rem .6rem;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.14);
  font-size:.78rem;
}

.price{
  padding:.7rem;
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.10);
}

.list{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:.45rem;
}

.list li{
  display:flex;
  gap:.5rem;
}

.dot{
  width:9px;
  height:9px;
  border-radius:50%;
  margin-top:.35rem;
  background:var(--brand);
}

/* ================= DEMO ================= */
.demo{
  margin-top:2rem;
  padding-top:1.4rem;
  border-top:1px solid rgba(255,255,255,.10);
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:1rem;
}

form{
  border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.10);
  padding:1rem;
  background:rgba(255,255,255,.03);
}

input,select,textarea{
  width:100%;
  padding:.58rem;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(0,0,0,.22);
  color:var(--text);
}

textarea{min-height:96px}

/* ================= FOOTER ================= */
footer{
  margin-top:1.6rem;
  padding-top:.9rem;
  border-top:1px solid rgba(255,255,255,.10);
  text-align:center;
  font-size:.78rem;
  color:var(--faint);
}

.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:.65rem;
  justify-content:center;
  margin-top:.55rem;
}

.footer-links a{
  color:rgba(199,210,254,.88);
  border-bottom:1px dashed rgba(199,210,254,.35);
  font-weight:700;
  font-size:.78rem;
}

/* ================= MODAL ================= */
.modal{
  position:fixed;
  inset:0;
  display:none;
  place-items:center;
  background:rgba(7,11,22,.72);
  backdrop-filter:blur(10px);
  z-index:80;
  padding:1rem;
}
.modal[aria-hidden="false"]{display:grid}

.modal__panel{
  width:min(820px,100%);
  max-height:82vh;
  overflow:hidden;
  border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(10,14,28,.88);
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
}

.modal__head{
  display:flex;
  justify-content:space-between;
  padding:.95rem 1rem;
  border-bottom:1px solid rgba(255,255,255,.10);
}

.icon-btn{
  width:38px;
  height:38px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  cursor:pointer;
}

.modal__body{
  padding:1rem;
  overflow:auto;
  font-size:.88rem;
}

.modal__foot{
  padding:.8rem 1rem;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  justify-content:space-between;
  gap:.75rem;
  font-size:.82rem;
}

/* ================= RESPONSIVE ================= */
@media(max-width:980px){
  .hero,.demo{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
}