:root{
  --bg:#07111f; --bg2:#050a12; --bg3:#0d1b31;
  --card:rgba(255,255,255,.05); --card-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10); --muted:#9fb0c7; --text:#eaf2ff;
  --accent:#ff7a1a; --acc2:#2b7cff; --ok:#39d98a; --danger:#ff5d5d;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);
  background:
    radial-gradient(900px 380px at 10% -10%, rgba(43,124,255,.18), transparent 60%),
    radial-gradient(700px 300px at 100% 0%, rgba(255,122,26,.16), transparent 60%),
    linear-gradient(180deg,var(--bg),var(--bg2));
}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.nav{position:sticky;top:0;z-index:20;background:rgba(6,11,20,.72);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav__row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.2px}
.brand__dot{width:11px;height:11px;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--acc2));box-shadow:0 0 18px rgba(255,122,26,.55)}
.menu{display:flex;gap:16px;align-items:center;color:var(--muted);font-size:14px;flex-wrap:wrap}
.menu a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:11px 16px;border:1px solid var(--line);background:transparent;transition:.2s transform,.2s background,.2s border-color}
.btn:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.22)}
.btn--accent{background:linear-gradient(90deg,var(--accent),#ff9955);border-color:transparent;color:#0b1020;font-weight:900}
.btn--primary{background:linear-gradient(90deg,var(--acc2),#61a0ff);border-color:transparent;color:#091022;font-weight:900}
.btn--ghost{background:rgba(255,255,255,.03)}
.hero{padding:78px 0 46px}
.hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center}
.h1{font-size:54px;line-height:1.02;margin:0 0 14px;font-weight:900;letter-spacing:-1.2px}
.sub{color:var(--muted);line-height:1.68;font-size:16px}
.hero__cta{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.hero__meta{margin-top:14px;color:rgba(255,255,255,.72);font-size:13px}
.glass,.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 14px 40px rgba(0,0,0,.18)}
.hero-card{padding:14px;border-radius:26px;overflow:hidden}
.hero-card img{width:100%;display:block;border-radius:18px}
.block{padding:42px 0}
.section-title{font-size:28px;margin:0 0 16px;font-weight:900;letter-spacing:-.4px}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.kpi{padding:18px;background:var(--card);border:1px solid var(--line);border-radius:16px}
.kpi-num{font-size:28px;font-weight:900}
.kpi-label{font-size:13px;color:var(--muted);margin-top:4px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.pill{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:18px;padding:18px}
.pill .ico{font-size:24px;margin-bottom:10px}
.pill .title{font-weight:800;margin-bottom:6px}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card h3{margin:0 0 8px;font-size:18px}
.small{color:var(--muted);font-size:13px;line-height:1.6}
.accordion{display:grid;gap:10px}
.acc-item{background:#fff;border:1px solid rgba(15,30,60,.12);border-radius:16px;overflow:hidden;color:#0e1730}
.acc-btn{width:100%;display:flex;justify-content:space-between;gap:10px;padding:16px 18px;background:#fff;border:none;font-size:15px;font-weight:800;cursor:pointer;text-align:left}
.acc-panel{display:none;padding:0 18px 16px;color:#415a7a;font-size:14px;line-height:1.6}
.acc-panel ul{margin:8px 0 0 18px}
.light{background:#f6f8fb;color:#0e1730}
.light .section-title{color:#0e1730}
.light .card,.light .pill,.light .kpi{background:#fff;border:1px solid rgba(15,30,60,.12)}
.cards-lessons{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.lesson-card{display:grid;grid-template-columns:180px 1fr;gap:14px;align-items:stretch}
.lesson-card .thumb{border-radius:14px;overflow:hidden;border:1px solid rgba(15,30,60,.12);background:#dfe8f7}
.lesson-card .thumb img{width:100%;height:100%;display:block;object-fit:cover}
.lesson-card .meta{display:flex;flex-direction:column;justify-content:space-between}
.badge{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border-radius:999px;background:rgba(43,124,255,.12);color:#2b7cff;font-weight:800;font-size:12px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plan{background:#fff;border:1px solid rgba(15,30,60,.12);border-radius:18px;padding:18px;color:#0e1730;box-shadow:0 12px 30px rgba(15,30,60,.06)}
.plan.featured{border:2px solid var(--acc2);transform:translateY(-4px)}
.plan .price{font-size:32px;font-weight:900;margin:10px 0}
.plan ul{margin:10px 0 0 18px;color:#445d7a;font-size:14px;line-height:1.6}
.input{width:100%;padding:11px 12px;border-radius:12px;border:1px solid rgba(15,30,60,.12);background:#f3f6fb;color:#0e1730}
.footer{padding:30px 0;border-top:1px solid rgba(255,255,255,.08);color:rgba(255,255,255,.65);font-size:12px;margin-top:20px}

/* learning */
.learn-wrap{padding:28px 0 40px}
.breadcrumb{color:rgba(255,255,255,.65);font-size:12px;margin-bottom:10px}
.learn-grid{display:grid;grid-template-columns:1fr 350px;gap:16px;align-items:start}
.panel{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px}
.step-head{display:flex;justify-content:space-between;gap:10px;align-items:center}
.progress{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.progress > div{height:100%;background:linear-gradient(90deg,var(--acc2),var(--accent))}
.step-body{margin-top:12px;line-height:1.72;font-size:15px}
.step-media{margin-top:14px;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#101b30}
.step-media img{width:100%;display:block}
.video{position:relative;padding-top:56.25%}
.video iframe{position:absolute;left:0;top:0;width:100%;height:100%}
.q-card{background:#fff;border:1px solid rgba(15,30,60,.12);border-radius:16px;padding:14px;color:#0e1730}
.option{display:block;width:100%;text-align:left;margin-top:10px;padding:12px 13px;border-radius:12px;border:1px solid rgba(15,30,60,.12);background:#f7f9fd;cursor:pointer;transition:.2s border-color,.2s background}
.option:hover{border-color:rgba(43,124,255,.35);background:#eef5ff}
.ok{color:var(--ok);font-weight:900}
.err{color:var(--danger);font-weight:900}
.sidebar-list{display:grid;gap:10px}
.side-card{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:14px;padding:12px}
.side-card.active{border-color:rgba(43,124,255,.6);background:rgba(43,124,255,.10)}

@media(max-width:980px){
  .hero__grid,.learn-grid{grid-template-columns:1fr}
  .grid4,.kpis,.cards3,.plans,.cards-lessons{grid-template-columns:1fr}
  .lesson-card{grid-template-columns:1fr}
  .h1{font-size:38px}
}

.plans:empty::before,.accordion:empty::before{content:'Контент загружается';display:block;color:#6a7b93;padding:20px;background:#fff;border-radius:16px}

/* Premium Auth Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(4, 8, 15, 0.65);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.25s ease-out;
}
.modal-card {
  background: #ffffff;
  border-radius: 12px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  padding: 36px 30px 30px;
  position: relative;
  border: 1px solid rgba(15, 30, 60, 0.08);
  animation: scaleUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-close-btn {
  position: absolute;
  top: 14px; right: 18px;
  font-size: 26px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: #8c9ba5;
  transition: color 0.15s;
  outline: none;
}
.modal-close-btn:hover {
  color: #2c3e50;
}
.modal-tabs {
  display: flex;
  gap: 22px;
  border-bottom: 1px solid #eef1f6;
  margin-bottom: 22px;
  position: relative;
}
.modal-tab {
  background: transparent;
  border: none;
  padding: 8px 0 12px;
  cursor: pointer;
  font-family: inherit;
  font-size: 18px;
  font-weight: 700;
  color: #9aa8b5;
  position: relative;
  outline: none;
  transition: color 0.15s;
}
.modal-tab:hover {
  color: #4b5866;
}
.modal-tab.active {
  color: #2b7cff;
}
.modal-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: #2b7cff;
}
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-field {
  position: relative;
}
.modal-input {
  width: 100%;
  padding: 13px 14px;
  border-radius: 6px;
  border: 1px solid #d4dfea;
  background: #ffffff;
  color: #0c1830;
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}
.modal-input:focus {
  border-color: #2b7cff;
  box-shadow: 0 0 0 3px rgba(43, 124, 255, 0.14);
}
/* Stacked input border fields matching screenshot */
.modal-form .modal-field + .modal-field {
  margin-top: -1px;
}
.modal-form .modal-field:first-of-type .modal-input {
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.modal-form .modal-field:last-of-type .modal-input {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  border-bottom-left-radius: 6px;
  border-bottom-right-radius: 6px;
}
/* For 3 inputs in registration */
#form-register .modal-field:nth-of-type(2) .modal-input {
  border-radius: 0;
}
.modal-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12px;
  color: #6a7b95;
  line-height: 1.5;
  cursor: pointer;
  margin: 6px 0;
}
.modal-consent input[type="checkbox"] {
  margin-top: 2px;
  width: 15px;
  height: 15px;
}
.modal-consent a {
  color: #2b7cff;
  text-decoration: none;
}
.modal-consent a:hover {
  text-decoration: underline;
}
.modal-btn-submit {
  width: 100%;
  padding: 13px;
  background: #5cb85c;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.08s;
  display: flex;
  justify-content: center;
  align-items: center;
  outline: none;
}
.modal-btn-submit:hover {
  background: #4cae4c;
}
.modal-btn-submit:active {
  transform: scale(0.995);
}
.modal-link-forgot {
  align-self: center;
  margin-top: 14px;
  font-size: 13px;
  color: #2b7cff;
  font-weight: 600;
  cursor: pointer;
}
.modal-link-forgot:hover {
  text-decoration: underline;
}
.error-msg {
  padding: 9px 12px;
  border-radius: 6px;
  border: 1px solid #ffa3a3;
  background: #fff5f5;
  color: #ff3b30;
  font-size: 13px;
  line-height: 1.45;
  margin-bottom: 6px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scaleUp {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}