/* ===== Variables ===== */
:root {
  --blue: #005BBB;
  --blue-dark: #0a1628;
  --blue-mid: #1a3050;
  --yellow: #FFD500;
  --gold: #f59e0b;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --green: #10b981;
  --red: #ef4444;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
  --font: 'Inter', system-ui, sans-serif;
  --bg: var(--white);
  --text: var(--gray-800);
  --text-muted: var(--gray-500);
  --card-bg: var(--gray-50);
  --border: var(--gray-200);
}

[data-theme="dark"] {
  --bg: var(--blue-dark);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --card-bg: rgba(26,48,80,.6);
  --border: rgba(255,255,255,.08);
  --gray-50: rgba(26,48,80,.4);
  --shadow: 0 4px 24px rgba(0,0,0,.3);
}

/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;border:none;background:none}
button{cursor:pointer}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container--narrow{max-width:720px}

/* ===== Scroll progress ===== */
.scroll-progress{position:fixed;top:0;left:0;height:3px;background:var(--blue);width:0;z-index:200;transition:width .1s}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:12px;font-weight:600;font-size:14px;transition:all .2s;border:1px solid transparent}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:#004a9e;transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn--ghost:hover{background:var(--card-bg)}
.btn--success{background:var(--green);color:#fff}
.btn--success:hover{background:#059669}
.btn--sm{padding:8px 16px;font-size:13px;border-radius:10px}
.btn--lg{padding:14px 28px;font-size:15px;border-radius:14px}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:100;padding:16px 0;transition:all .3s}
.header.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:12px 0}
[data-theme="dark"] .header.scrolled{background:rgba(10,22,40,.9)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px}
.logo__icon{width:36px;height:36px;background:var(--blue);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff}
.logo__text{display:flex;flex-direction:column;line-height:1.2}
.logo__text strong{font-size:14px;font-weight:700}
.logo__text small{font-size:11px;color:var(--blue);font-weight:600;text-transform:uppercase;letter-spacing:.05em}
[data-theme="dark"] .logo__text small{color:#93c5fd}
.nav{display:flex;gap:4px}
.nav a{padding:8px 16px;border-radius:10px;font-size:14px;font-weight:500;color:var(--text-muted);transition:all .2s}
.nav a:hover{color:var(--text);background:var(--card-bg)}
.header__actions{display:flex;align-items:center;gap:8px}
.theme-toggle{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--card-bg);color:var(--text-muted);transition:all .2s}
.theme-toggle:hover{background:var(--border)}
[data-theme="dark"] .icon-sun{display:none}
[data-theme="light"] .icon-moon,[data-theme="light"] .icon-sun{display:none}
[data-theme="light"] .icon-moon{display:block}
.icon-moon{display:none}
.burger{display:none;flex-direction:column;gap:5px;width:36px;height:36px;align-items:center;justify-content:center;background:var(--card-bg);border-radius:10px}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.2s}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 0 80px;overflow:hidden;background:var(--blue-dark);color:#fff}
.hero__bg{position:absolute;inset:0;background:radial-gradient(ellipse at 30% 40%,rgba(0,91,187,.15) 0%,transparent 60%),radial-gradient(ellipse at 70% 60%,rgba(255,213,0,.05) 0%,transparent 50%);pointer-events:none}
.hero__content{position:relative;text-align:center;max-width:800px;margin:0 auto}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:100px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);font-size:13px;color:#cbd5e1;margin-bottom:24px}
.badge__dot{width:6px;height:6px;border-radius:50%;background:#34d399;animation:pulse 2s infinite}
.badge strong{color:var(--yellow)}
.hero__title{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.1;margin-bottom:20px;letter-spacing:-.02em}
.gradient-text{background:linear-gradient(135deg,#4a90e2,#93c5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero__subtitle{font-size:18px;color:#94a3b8;max-width:600px;margin:0 auto 32px;line-height:1.7}
.hero__actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:560px;margin:0 auto}
.stat-card{padding:20px;border-radius:var(--radius);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(8px)}
.stat-card strong{display:block;font-size:24px;font-weight:800;margin-bottom:4px}
.stat-card span{font-size:12px;color:#94a3b8}

/* ===== Sections ===== */
.section{padding:96px 0}
.section--alt{background:var(--gray-50)}
[data-theme="dark"] .section--alt{background:rgba(10,22,40,.5)}
.section-label{display:inline-block;padding:4px 12px;border-radius:100px;background:rgba(0,91,187,.1);color:var(--blue);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:16px}
[data-theme="dark"] .section-label{background:rgba(0,91,187,.2);color:#93c5fd}
.section-label--light{background:rgba(255,255,255,.1);color:#93c5fd}
.section-title{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:800;line-height:1.2;margin-bottom:16px;letter-spacing:-.02em}
.section-title--light{color:#fff}
.section-desc{color:var(--text-muted);max-width:560px;margin:0 auto;font-size:16px}
.section-header{text-align:center;margin-bottom:56px}
.text-accent{color:var(--blue)}
[data-theme="dark"] .text-accent{color:#93c5fd}
.text-gold{color:var(--yellow)}
.text-muted{color:var(--text-muted);font-size:14px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.grid-2 p{color:var(--text-muted);margin-bottom:16px;font-size:15px;line-height:1.7}

.check-list{margin-top:24px}
.check-list li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:14px;color:var(--text-muted)}
.check-list li::before{content:'✓';color:var(--green);font-weight:700;flex-shrink:0}

/* ===== Cards ===== */
.cards-stack{display:flex;flex-direction:column;gap:16px}
.info-card{padding:20px;border-radius:var(--radius);background:var(--card-bg);border:1px solid var(--border);transition:all .2s}
.info-card:hover{border-color:rgba(0,91,187,.3);transform:translateY(-2px)}
.info-card__icon{font-size:24px;margin-bottom:12px}
.info-card h3{font-size:15px;font-weight:600;margin-bottom:6px}
.info-card p{font-size:14px;color:var(--text-muted);line-height:1.6}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{padding:24px;border-radius:var(--radius);background:var(--card-bg);border:1px solid var(--border);transition:all .2s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step__num{font-size:36px;font-weight:900;color:var(--border);display:block;margin-bottom:12px}
.step h3{font-size:15px;font-weight:600;margin-bottom:8px}
.step p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ===== Benefits ===== */
.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.benefit{padding:24px;border-radius:var(--radius);background:var(--card-bg);border:1px solid var(--border);transition:all .2s}
.benefit:hover{border-color:rgba(0,91,187,.3);transform:translateY(-2px)}
.benefit__icon{font-size:28px;margin-bottom:12px}
.benefit h3{font-size:15px;font-weight:600;margin-bottom:8px}
.benefit p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ===== Stats ===== */
.stats-section{padding:96px 0;background:var(--blue-dark);color:#fff;position:relative;overflow:hidden}
.stats-section::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(0,91,187,.1),transparent);pointer-events:none}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stats-card{padding:32px 24px;border-radius:var(--radius);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);text-align:center;backdrop-filter:blur(8px)}
.stats-card strong{display:block;font-size:36px;font-weight:900;margin-bottom:8px}
.stats-card span{font-size:13px;color:#94a3b8}

/* ===== Form ===== */
.form-wrapper{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.form-steps{display:flex;border-bottom:1px solid var(--border);padding:20px 24px 0;gap:8px;overflow-x:auto}
.form-step{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:13px;color:var(--text-muted);white-space:nowrap;border-bottom:2px solid transparent;margin-bottom:-1px}
.form-step span{width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:var(--card-bg);font-weight:700;font-size:12px}
.form-step.active{color:var(--text);border-bottom-color:var(--blue)}
.form-step.active span{background:var(--blue);color:#fff}
.form-step.done span{background:var(--green);color:#fff}

.form-panel{display:none;padding:24px}
.form-panel.active{display:block}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:1/-1}
.field label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}
.field input,.field select,.field textarea{padding:12px 16px;border-radius:12px;border:1px solid var(--border);background:var(--bg);font-size:14px;transition:border .2s;outline:none;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,91,187,.15)}
.field input.error,.field select.error,.field textarea.error{border-color:var(--red)}
.field .error-msg{font-size:12px;color:var(--red)}
.notice{padding:16px;border-radius:12px;background:rgba(0,91,187,.06);border:1px solid rgba(0,91,187,.15);font-size:13px;color:var(--text-muted);line-height:1.6}
.form-nav{display:flex;justify-content:space-between;padding:0 24px 24px}

.form-state{padding:48px 24px;text-align:center}
.form-state h3{font-size:22px;font-weight:700;margin:16px 0 8px}
.form-state p{color:var(--text-muted);font-size:15px;margin-bottom:8px}
.form-state__actions{display:flex;gap:12px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.loader{width:48px;height:48px;border:3px solid var(--border);border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto}
.success-icon{width:72px;height:72px;border-radius:50%;background:rgba(16,185,129,.1);color:var(--green);font-size:36px;display:flex;align-items:center;justify-content:center;margin:0 auto;font-weight:700}
.progress-bar{height:6px;background:var(--border);border-radius:6px;overflow:hidden;margin-top:24px;max-width:400px;margin-left:auto;margin-right:auto}
.progress-bar__fill{height:100%;background:var(--blue);border-radius:6px;width:0;transition:width .3s}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border .2s}
.faq-item.active{border-color:rgba(0,91,187,.4)}
.faq-q{width:100%;padding:16px 20px;text-align:left;font-size:15px;font-weight:600;display:flex;justify-content:space-between;align-items:center;background:var(--bg);transition:background .2s}
.faq-q:hover{background:var(--card-bg)}
.faq-q::after{content:'+';font-size:20px;color:var(--text-muted);transition:transform .2s}
.faq-item.active .faq-q::after{content:'−'}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.active .faq-a{max-height:200px}
.faq-a p{padding:0 20px 16px;font-size:14px;color:var(--text-muted);line-height:1.7}

/* ===== CTA ===== */
.cta{padding:96px 0;background:var(--blue-dark);color:#fff;position:relative;overflow:hidden}
.cta::before{content:'';position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(var(--blue) 50%,var(--yellow) 50%)}
.cta__inner{text-align:center;max-width:640px;margin:0 auto}
.cta h2{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:800;margin-bottom:16px;line-height:1.2}
.cta p{color:#94a3b8;margin-bottom:32px;font-size:16px}
.cta__actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{background:#030813;color:#94a3b8;padding-top:0}
.footer__flag{height:4px;background:linear-gradient(90deg,var(--blue),var(--yellow),var(--blue))}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer__desc{font-size:14px;margin-top:16px;line-height:1.7;max-width:320px}
.footer h4{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#cbd5e1;margin-bottom:16px}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:14px;transition:color .2s}
.footer ul a:hover{color:#fff}
.footer__bottom{border-top:1px solid rgba(255,255,255,.06);padding:20px 0;text-align:center;font-size:13px}
.logo--footer .logo__text strong{color:#fff}

/* ===== Cookie ===== */
.cookie{position:fixed;bottom:16px;left:16px;right:16px;max-width:420px;margin:0 auto;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;box-shadow:var(--shadow);z-index:150;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.cookie p{font-size:13px;color:var(--text-muted);flex:1}
.cookie div{display:flex;gap:8px}

/* ===== Back to top ===== */
.back-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:12px;background:var(--blue);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s;z-index:100;box-shadow:0 4px 12px rgba(0,91,187,.3)}
.back-top.visible{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-2px)}

/* ===== Animations ===== */
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes spin{to{transform:rotate(360deg)}}
.fade-up{opacity:0;transform:translateY(24px);animation:fadeUp .6s ease forwards}
.fade-up:nth-child(2){animation-delay:.1s}
.fade-up:nth-child(3){animation-delay:.2s}
.fade-up:nth-child(4){animation-delay:.3s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media(max-width:900px){
  .grid-2,.steps,.benefits-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr}
  .nav{position:fixed;top:64px;left:16px;right:16px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px;flex-direction:column;display:none;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .burger{display:flex}
  .header__actions .btn--sm{display:none}
}
@media(max-width:600px){
  .hero__stats{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
}