/* ===== Variables ===== */
:root {
    --bg: #000000;
    --bg-item: #0a0a0a;
    --bg-item-hover: #111111;
    --border: rgba(255,255,255,0.1);
    --border-hover: rgba(255,255,255,0.2);
    --text: #ffffff;
    --text-secondary: rgba(255,255,255,0.5);
    --text-tertiary: rgba(255,255,255,0.25);
    --green: #22c55e;
    --green-dim: rgba(34,197,94,0.15);
    --blue: #3b82f6;
    --red: #ef4444;
    --yellow: #eab308;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --font: 'Manrope', system-ui, -apple-system, sans-serif;
    --max-w: 1200px;
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ===== Reset ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:16px;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;border:none;outline:none;background:none}

/* ===== Container ===== */
.container{max-width:var(--max-w);margin:0 auto;padding:0 40px;width:100%}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:100}

.header-top{background:var(--bg-item);border-bottom:1px solid var(--border);height:46px;display:flex;align-items:center}
.header-top-inner{display:flex;justify-content:space-between;align-items:center}
.status-indicator{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary)}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse-dot 2s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:0.4}}

.header-top-right{display:flex;align-items:center;gap:16px}
.online-badge{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary)}
.online-dot{width:6px;height:6px;border-radius:50%;background:var(--green)}

.header-main{backdrop-filter:blur(50px);-webkit-backdrop-filter:blur(50px);background:rgba(0,0,0,0.6);border-bottom:1px solid var(--border);height:64px;display:flex;align-items:center}
.header-main-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}

.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-icon{width:32px;height:32px;object-fit:contain;border-radius:6px}
.logo-text{font-size:22px;font-weight:600;letter-spacing:-0.02em}

.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-sm);cursor:pointer;color:var(--text);transition:opacity var(--transition)}
.mobile-menu-btn:hover{opacity:0.7}

.nav{display:flex;align-items:center;gap:32px;position:relative}
.nav-link{font-size:15px;font-weight:400;color:var(--text-secondary);transition:color 0.3s ease;position:relative}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text)}
.nav-indicator{position:absolute;bottom:-4px;height:2px;background:var(--text);border-radius:1px;transition:left 0.35s cubic-bezier(0.4,0,0.2,1),width 0.35s cubic-bezier(0.4,0,0.2,1),opacity 0.25s ease;pointer-events:none;opacity:0}

.header-actions{display:flex;align-items:center;gap:12px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-md);font-size:14px;font-weight:400;cursor:pointer;transition:opacity var(--transition),background var(--transition),color var(--transition);white-space:nowrap;text-decoration:none}
.btn:disabled,.btn.disabled{opacity:0.4;cursor:not-allowed}
.btn-filled{background:var(--text);color:var(--bg)}
.btn-filled:hover:not(:disabled){opacity:0.85}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--text)}
.btn-outline:hover:not(:disabled){opacity:0.8}
.btn-green{background:var(--green);color:white}
.btn-green:hover:not(:disabled){opacity:0.85}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px 16px}
.btn-ghost:hover{color:var(--text)}
.btn-sm{padding:7px 14px;font-size:13px;border-radius:var(--radius-sm)}
.btn-lg{padding:14px 28px;font-size:16px}

/* ===== Main ===== */
.main{flex:1;padding-top:150px;padding-bottom:60px}

/* ===== Hero ===== */
.hero{position:relative;background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-xl);padding:60px;overflow:hidden;margin-bottom:50px}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(34,197,94,0.08) 0%,transparent 70%);pointer-events:none}
.hero-content{position:relative;z-index:2;max-width:600px}
.hero h1{font-size:36px;font-weight:600;line-height:1.2;letter-spacing:-0.02em;margin-bottom:12px}
.hero p{font-size:18px;color:var(--text-secondary);font-weight:300;margin-bottom:28px}

.hero-floating{position:absolute;top:0;right:0;bottom:0;width:480px;z-index:1;pointer-events:none}
.hero-float{position:absolute;width:160px;height:auto;object-fit:contain;opacity:0.85;filter:drop-shadow(0 8px 28px rgba(0,0,0,0.45))}

.hero-float-1{top:8%;left:60px;animation:float-1 6s ease-in-out infinite;width:180px}
.hero-float-2{top:42%;left:220px;animation:float-2 7s ease-in-out infinite;width:145px;opacity:0.65}
.hero-float-3{bottom:6%;left:100px;animation:float-3 8s ease-in-out infinite;width:120px;opacity:0.5}

@keyframes float-1{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-14px) rotate(2deg)}}
@keyframes float-2{0%,100%{transform:translateY(0) rotate(2deg)}50%{transform:translateY(-18px) rotate(-3deg)}}
@keyframes float-3{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-12px) rotate(4deg)}}

/* ===== Section titles ===== */
.section-title{font-size:22px;font-weight:500;margin-bottom:8px}
.section-subtitle{font-size:15px;color:var(--text-secondary);font-weight:300;margin-bottom:28px}

/* ===== Upload Zone ===== */
.upload-section{margin-bottom:50px}

.upload-zone{
    border:2px dashed var(--border);
    border-radius:var(--radius-lg);
    padding:48px 32px;
    text-align:center;
    cursor:pointer;
    transition:border-color var(--transition),background var(--transition);
    position:relative;
}
.upload-zone:hover,.upload-zone.dragover{
    border-color:var(--green);
    background:rgba(34,197,94,0.03);
}
.upload-zone-compact{padding:20px 24px}
.upload-zone-compact .upload-zone-content{flex-direction:row;gap:12px;align-items:center}

.upload-zone-content{display:flex;flex-direction:column;align-items:center;gap:12px}
.upload-zone-icon{color:var(--text-secondary)}
.upload-zone-text{font-size:16px;color:var(--text-secondary);font-weight:400}
.upload-zone-btn{color:var(--green);cursor:pointer;text-decoration:underline;text-underline-offset:3px;font-weight:500}
.upload-zone-hint{font-size:14px;color:var(--text-tertiary)}
.upload-zone-limit{font-size:13px;color:var(--text-tertiary);margin-top:4px}

/* Upload progress */
.upload-progress{
    margin-top:16px;
    background:var(--bg-item);
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    padding:16px 20px;
}
.upload-progress-info{display:flex;justify-content:space-between;margin-bottom:10px;font-size:14px}
.upload-progress-name{font-weight:500}
.upload-progress-size{color:var(--text-secondary);font-weight:300}
.upload-progress-bar{height:4px;background:rgba(255,255,255,0.08);border-radius:2px;overflow:hidden}
.upload-progress-fill{height:100%;background:var(--green);border-radius:2px;transition:width 0.3s ease}
.upload-progress-footer{display:flex;justify-content:space-between;margin-top:8px;font-size:13px;color:var(--text-secondary)}
.upload-progress-cancel{color:var(--red);cursor:pointer;font-size:13px}
.upload-progress-cancel:hover{opacity:0.7}

/* ===== How it works ===== */
.how-section{margin-bottom:50px}
.how-steps{display:flex;align-items:flex-start;gap:16px}
.how-step{flex:1;background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;text-align:center;transition:border-color var(--transition)}
.how-step:hover{border-color:var(--border-hover)}
.how-step-num{width:40px;height:40px;border-radius:50%;background:var(--green-dim);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:18px;margin:0 auto 14px}
.how-step h3{font-size:16px;font-weight:500;margin-bottom:8px}
.how-step p{font-size:14px;color:var(--text-secondary);font-weight:300;line-height:1.5}
.how-step-arrow{color:var(--text-tertiary);font-size:24px;padding-top:48px;flex-shrink:0}

/* ===== Features grid ===== */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:50px}
.feature-card{background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;text-align:center;transition:border-color var(--transition);overflow:hidden}
.feature-card:hover{border-color:var(--border-hover)}
.feature-icon{font-size:36px;margin-bottom:16px;display:flex;align-items:center;justify-content:center}
.feature-img{width:128px;height:128px;object-fit:contain}
.feature-card h3{font-size:17px;font-weight:500;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text-secondary);font-weight:300;line-height:1.5}

/* ===== File list ===== */
.files-section{margin-bottom:50px}
.dashboard-header{padding-top:20px;margin-bottom:24px}
.file-list{display:flex;flex-direction:column;gap:8px}
.file-item{display:flex;align-items:center;gap:16px;padding:16px 24px;background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-md);transition:border-color var(--transition),background var(--transition)}
.file-item:hover{border-color:var(--border-hover);background:var(--bg-item-hover)}
.file-icon{font-size:28px;flex-shrink:0;width:40px;text-align:center}
.file-info{flex:1;min-width:0}
.file-name{font-size:15px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-meta{display:flex;align-items:center;gap:12px;margin-top:4px;font-size:13px;color:var(--text-secondary);font-weight:300}
.file-meta-sep{width:3px;height:3px;border-radius:50%;background:var(--text-tertiary);flex-shrink:0}
.file-status{display:flex;align-items:center;gap:8px;flex-shrink:0}

.status-badge{font-size:13px;font-weight:400;padding:4px 12px;border-radius:20px;white-space:nowrap}
.status-active{color:var(--green);background:var(--green-dim)}
.status-expiring_soon{color:var(--yellow);background:rgba(234,179,8,0.15)}
.status-expired{color:var(--text-tertiary);background:rgba(255,255,255,0.05)}
.status-deleted{color:var(--red);background:rgba(239,68,68,0.1)}

.file-download{flex-shrink:0}

/* ===== Pricing ===== */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.pricing-card{background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-xl);padding:36px;display:flex;flex-direction:column;transition:border-color var(--transition)}
.pricing-card:hover{border-color:var(--border-hover)}
.pricing-card.popular{border-color:var(--green);position:relative}
.pricing-card.popular::after{content:'Популярный';position:absolute;top:16px;right:16px;font-size:12px;font-weight:500;padding:4px 10px;border-radius:20px;background:var(--green-dim);color:var(--green)}
.pricing-name{font-size:18px;font-weight:600;margin-bottom:8px}
.pricing-price{font-size:32px;font-weight:700;margin-bottom:4px;letter-spacing:-0.02em}
.pricing-price span{font-size:16px;font-weight:300;color:var(--text-secondary)}
.pricing-features{list-style:none;margin:24px 0;display:flex;flex-direction:column;gap:12px;flex:1}
.pricing-features li{font-size:14px;color:var(--text-secondary);font-weight:300;display:flex;align-items:center;gap:8px}
.pricing-features li::before{content:'✓';color:var(--green);font-weight:600;flex-shrink:0}
.pricing-card .btn{width:100%}

/* ===== Forms ===== */
.form-page{max-width:420px;margin:0 auto;padding-top:40px}
.form-card{background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-xl);padding:40px}
.form-title{font-size:24px;font-weight:600;text-align:center;margin-bottom:8px}
.form-subtitle{font-size:15px;color:var(--text-secondary);font-weight:300;text-align:center;margin-bottom:28px}
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:14px;font-weight:400;margin-bottom:6px;color:var(--text-secondary)}
.form-input{width:100%;padding:12px 16px;background:rgba(255,255,255,0.05);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:15px;transition:border-color var(--transition)}
.form-input:focus{border-color:var(--green)}
.form-input::placeholder{color:var(--text-tertiary)}
.form-input.error{border-color:var(--red)}
.form-checkbox{display:flex;align-items:flex-start;gap:10px;margin:20px 0;font-size:14px;color:var(--text-secondary);cursor:pointer}
.form-checkbox input[type="checkbox"]{width:18px;height:18px;margin-top:1px;accent-color:var(--green);cursor:pointer;flex-shrink:0}
.form-error{color:var(--red);font-size:13px;margin-top:6px}
.form-errors{background:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.2);border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:20px}
.form-errors p{color:var(--red);font-size:14px;margin-bottom:4px}
.form-errors p:last-child{margin-bottom:0}
.form-footer{text-align:center;margin-top:20px;font-size:14px;color:var(--text-secondary)}
.form-footer a{color:var(--green);transition:opacity var(--transition)}
.form-footer a:hover{opacity:0.8}
.form-btn{width:100%;margin-top:8px}

/* ===== Success page ===== */
.success-page{text-align:center;padding-top:60px;max-width:520px;margin:0 auto}
.success-icon{font-size:64px;margin-bottom:20px}
.success-page h1{font-size:28px;font-weight:600;margin-bottom:16px}
.success-page p{font-size:15px;color:var(--text-secondary);font-weight:300;line-height:1.7;margin-bottom:12px}
.success-email{font-weight:500;color:var(--green)}
.success-actions{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:28px}

/* ===== About / Stats ===== */
.about-hero{margin-bottom:40px}
.about-hero h1{font-size:32px;font-weight:600;margin-bottom:16px}
.about-text{font-size:16px;color:var(--text-secondary);font-weight:300;line-height:1.8;margin-bottom:16px;max-width:700px}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.stat-card{background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;text-align:center}
.stat-value{font-size:28px;font-weight:700;color:var(--green);margin-bottom:6px;letter-spacing:-0.02em}
.stat-label{font-size:14px;color:var(--text-secondary);font-weight:300}

/* ===== Contact ===== */
.contact-layout{max-width:600px;margin:0 auto;padding-top:40px}
.contact-sent{text-align:center;padding:40px}
.contact-sent-icon{font-size:48px;margin-bottom:16px}

/* ===== Legal ===== */
.legal-page{max-width:760px;margin:0 auto;padding-top:40px}
.legal-page h1{font-size:28px;font-weight:600;margin-bottom:28px}
.legal-page h2{font-size:18px;font-weight:600;margin-top:28px;margin-bottom:12px}
.legal-page p{font-size:15px;color:var(--text-secondary);font-weight:300;line-height:1.8;margin-bottom:12px}

/* ===== Toast ===== */
.toast-container{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:1000;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{background:var(--bg-item);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 20px;font-size:14px;color:var(--text);pointer-events:auto;animation:toast-in .3s ease-out;white-space:nowrap}
.toast.toast-out{animation:toast-out .25s ease-in forwards}
@keyframes toast-in{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes toast-out{from{opacity:1}to{opacity:0;transform:translateY(-6px)}}

/* ===== Mobile overlay ===== */
.mobile-overlay{display:none;position:fixed;inset:0;z-index:200;background:var(--bg)}
.mobile-overlay.open{display:flex;flex-direction:column}
.mobile-menu{padding:120px 40px 40px;display:flex;flex-direction:column;gap:4px}
.mobile-nav-link{padding:12px;border-radius:var(--radius-sm);font-size:15px;color:var(--text-secondary);transition:background var(--transition),color var(--transition)}
.mobile-nav-link:hover{background:rgba(255,255,255,0.05);color:var(--text)}
.mobile-menu-divider{height:1px;background:var(--border);margin:8px 0}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--border);padding:48px 0 32px}
.footer-top{display:flex;justify-content:space-between;gap:40px;margin-bottom:40px}
.footer-brand{max-width:300px}
.footer-desc{margin-top:12px;font-size:14px;color:var(--text-secondary);font-weight:300}
.footer-links{display:flex;gap:60px}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col-title{font-size:14px;font-weight:500;text-decoration:underline;text-underline-offset:4px;margin-bottom:4px}
.footer-col a{font-size:14px;color:var(--text-secondary);transition:color var(--transition);font-weight:300}
.footer-col a:hover{color:var(--text)}
.footer-bottom{padding-top:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text-tertiary);font-weight:300}

/* ===== Responsive ===== */
@media(max-width:1024px){
    .container{padding:0 24px}
    .hero{padding:40px}
    .hero h1{font-size:28px}
    .hero-floating{width:340px}
    .hero-float-1{width:140px;left:30px}
    .hero-float-2{width:115px;left:160px}
    .hero-float-3{width:95px;left:70px}
    .features,.how-steps{grid-template-columns:1fr;display:flex;flex-direction:column}
    .how-step-arrow{display:none}
    .pricing-grid,.stats-grid{grid-template-columns:1fr;max-width:420px;margin-left:auto;margin-right:auto}
}
@media(max-width:768px){
    .container{padding:0 20px}
    .header-top{display:none}
    .main{padding-top:100px;padding-bottom:40px}
    .header-main{height:56px}
    .nav,.header-actions{display:none}
    .mobile-menu-btn{display:flex}
    .hero{padding:28px;border-radius:var(--radius-lg);text-align:center;margin-bottom:32px}
    .hero h1{font-size:22px}
    .hero p{font-size:15px}
    .hero::before{display:none}
    .hero-floating{display:none}
    .file-item{flex-wrap:wrap;padding:14px 16px;gap:10px}
    .file-info{flex:1;min-width:calc(100% - 60px)}
    .file-status{width:100%;justify-content:space-between}
    .file-meta{flex-wrap:wrap;gap:6px}
    .file-meta-sep{display:none}
    .features{gap:10px;margin-bottom:32px}
    .feature-card{padding:24px;border-radius:var(--radius-lg)}
    .section-title,.section-subtitle{text-align:center}
    .form-card{padding:24px;border-radius:var(--radius-lg)}
    .footer-top{flex-direction:column;gap:28px}
    .footer-links{gap:36px}
    .footer-brand{max-width:100%}
    .upload-zone{padding:32px 20px}
}