*{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#0a2540;
  --primary-2:#12395a;
  --accent:#0b6fd3;
  --accent-2:#12a78f;
  --accent-soft:#e7f2ff;
  --mint-soft:#e8fbf6;
  --gold:#f4a62a;
  --surface:#ffffff;
  --surface-2:#f7fbff;
  --bg:#f4f8fb;
  --text:#1d2b3a;
  --muted:#637384;
  --line:rgba(15,40,65,.1);
  --shadow:0 22px 70px rgba(9,37,64,.12);
  --soft-shadow:0 12px 36px rgba(9,37,64,.09);
  --radius:14px;
  --nav-bg:rgba(255,255,255,.86);
  --hero-bg:linear-gradient(115deg,rgba(248,252,255,.98) 0%,rgba(255,255,255,.9) 55%,rgba(232,251,246,.9) 100%);
}
[data-theme="dark"]{
  --primary:#e5edf6;
  --primary-2:#cbd9e7;
  --accent:#68b7ff;
  --accent-2:#43d4bd;
  --accent-soft:rgba(104,183,255,.13);
  --mint-soft:rgba(67,212,189,.12);
  --gold:#f5bd55;
  --surface:#161f2b;
  --surface-2:#111923;
  --bg:#0c1219;
  --text:#e7edf4;
  --muted:#9eacba;
  --line:rgba(255,255,255,.1);
  --shadow:0 22px 70px rgba(0,0,0,.32);
  --soft-shadow:0 12px 36px rgba(0,0,0,.26);
  --nav-bg:rgba(17,25,35,.88);
  --hero-bg:linear-gradient(115deg,rgba(12,18,25,.98) 0%,rgba(17,25,35,.94) 56%,rgba(12,39,44,.9) 100%);
}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden}
body[data-nav-open]{overflow:hidden}
a{color:inherit}
button,input{font:inherit}
button{border:0}

.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--nav-bg);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-shell{height:68px;max-width:1180px;margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.nav-brand{display:flex;align-items:center;gap:.65rem;color:var(--primary);font-weight:800;font-size:1.15rem;text-decoration:none;white-space:nowrap}
.nav-brand img{width:40px;height:40px;border-radius:10px;object-fit:contain;background:#fff;box-shadow:0 5px 16px rgba(9,37,64,.12)}
.nav-links{display:flex;align-items:center;gap:1.45rem}
.nav-links a:not(.btn){text-decoration:none;color:var(--muted);font-size:.9rem;font-weight:650;transition:color .2s}
.nav-links a:not(.btn):hover{color:var(--accent)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:11px;background:var(--surface);border:1px solid var(--line);cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{width:18px;height:2px;background:var(--primary);border-radius:3px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:42px;padding:.68rem 1.25rem;border-radius:10px;font-size:.9rem;font-weight:750;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;cursor:pointer;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 12px 26px rgba(10,37,64,.24)}
.btn-primary:hover{box-shadow:0 16px 34px rgba(10,37,64,.3)}
[data-theme="dark"] .btn-primary{background:linear-gradient(135deg,#68b7ff,#43d4bd);color:#06111c;box-shadow:0 14px 30px rgba(67,212,189,.18)}
.btn-outline{background:var(--surface);color:var(--accent);border:1.5px solid rgba(11,111,211,.35)}
.btn-outline:hover{background:var(--accent-soft);border-color:var(--accent)}
.btn-extend{background:linear-gradient(135deg,var(--accent-2),#0b7f73);color:#fff;box-shadow:0 10px 24px rgba(18,167,143,.22)}
.btn-extend:hover{box-shadow:0 15px 32px rgba(18,167,143,.3)}
.btn-light{background:#fff;color:#0a2540;box-shadow:0 14px 28px rgba(0,0,0,.2)}
.theme-toggle{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--muted);cursor:pointer;font-size:1.1rem;line-height:1;transition:color .2s,border-color .2s,background .2s}
.theme-toggle:hover{color:var(--accent);border-color:rgba(11,111,211,.45);background:var(--accent-soft)}

.hero{min-height:96vh;display:flex;align-items:center;padding:8.5rem 2rem 5.5rem;background:var(--hero-bg);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:120px;background:linear-gradient(180deg,rgba(244,248,251,0),var(--bg));pointer-events:none}
[data-theme="dark"] .hero::after{background:linear-gradient(180deg,rgba(12,18,25,0),var(--bg))}
.hero-content{position:relative;z-index:1;max-width:770px}
.hero-visual{position:absolute;right:clamp(1rem,7vw,6.5rem);top:52%;transform:translateY(-50%);width:clamp(260px,37vw,510px);aspect-ratio:1;display:flex;align-items:center;justify-content:center;opacity:.22;z-index:0;pointer-events:none}
.hero-visual::before{content:"";position:absolute;inset:8%;border-radius:50%;background:radial-gradient(circle,rgba(18,167,143,.16),rgba(11,111,211,.08) 48%,transparent 72%);filter:blur(8px)}
.hero-visual img{position:relative;width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 24px 42px rgba(9,37,64,.24))}
[data-theme="dark"] .hero-visual{opacity:.62}
[data-theme="dark"] .hero-visual::before{background:radial-gradient(circle,rgba(104,183,255,.32),rgba(67,212,189,.18) 52%,transparent 74%);filter:blur(4px)}
[data-theme="dark"] .hero-visual img{filter:drop-shadow(0 0 18px rgba(104,183,255,.45)) drop-shadow(0 30px 52px rgba(0,0,0,.44))}
.hero-badge,.section-kicker{display:inline-flex;align-items:center;gap:.4rem;padding:.36rem .85rem;border-radius:999px;background:var(--mint-soft);color:#087b6f;font-size:.78rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;margin-bottom:1rem}
[data-theme="dark"] .hero-badge,[data-theme="dark"] .section-kicker{color:var(--accent-2)}
.hero h1{max-width:720px;font-size:clamp(2.45rem,6vw,5.25rem);line-height:1.03;color:var(--primary);font-weight:850;letter-spacing:0;margin-bottom:1.3rem}
.hero h1 span{color:var(--accent)}
.hero p{font-size:clamp(1rem,2vw,1.22rem);max-width:640px;color:var(--muted);line-height:1.75;margin-bottom:2.1rem}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:3.1rem}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(130px,1fr));gap:1rem;max-width:650px}
.hero-stat{background:rgba(255,255,255,.74);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem;box-shadow:var(--soft-shadow);backdrop-filter:blur(10px)}
[data-theme="dark"] .hero-stat{background:rgba(22,31,43,.76)}
.hero-stat strong{display:block;color:var(--primary);font-size:1.75rem;line-height:1;font-weight:850}
.hero-stat span{display:block;color:var(--muted);font-size:.82rem;margin-top:.35rem}

section{padding:5.25rem 1.5rem}
.section-inner{max-width:1120px;margin:0 auto}
.section-header{text-align:center;margin:0 auto 3.2rem;max-width:700px}
.section-header h2{font-size:clamp(1.75rem,3vw,2.65rem);line-height:1.12;color:var(--primary);font-weight:820;margin-bottom:.75rem}
.section-header p{color:var(--muted);font-size:1.05rem}
.features-section,.tiers-section{background:var(--surface)}
.features-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}
.feature-card{background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1px solid var(--line);border-radius:var(--radius);padding:1.55rem;box-shadow:0 1px 0 rgba(255,255,255,.5);transition:transform .22s,box-shadow .22s,border-color .22s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:rgba(18,167,143,.32)}
.feature-icon{width:50px;height:50px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:var(--accent-soft);color:var(--accent);font-size:1.5rem;margin-bottom:1rem}
.feature-card h3{color:var(--primary);font-size:1.1rem;margin-bottom:.42rem}
.feature-card p{color:var(--muted);font-size:.93rem;line-height:1.65}

.how-section{background:linear-gradient(180deg,var(--bg),var(--surface-2))}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.55rem;box-shadow:var(--soft-shadow)}
.step span{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:850;margin-bottom:1.1rem}
.step h3{color:var(--primary);font-size:1.08rem;margin-bottom:.45rem}
.step p{color:var(--muted);font-size:.93rem}

.tiers-section .section-inner{max-width:1120px}
.pricing-rail{position:relative;width:100vw;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw)}
.tiers{display:grid;grid-template-columns:repeat(4,minmax(310px,1fr));gap:1.35rem;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x proximity;width:100%;padding:.5rem max(1rem,calc((100vw - 1300px)/2)) 1.15rem;scrollbar-width:auto;scrollbar-color:var(--accent) var(--surface-2);cursor:grab;-webkit-overflow-scrolling:touch}
.tiers:focus{outline:2px solid rgba(11,111,211,.28);outline-offset:4px}
.tiers.is-dragging{cursor:grabbing;scroll-snap-type:none;user-select:none}
.tiers::-webkit-scrollbar{height:12px}
.tiers::-webkit-scrollbar-track{background:var(--surface-2);border-radius:999px}
.tiers::-webkit-scrollbar-thumb{background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:999px;border:2px solid var(--surface-2)}
.pricing-scroll{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);color:var(--primary);box-shadow:var(--shadow);font-size:2rem;line-height:1;cursor:pointer;transition:transform .2s,background .2s,color .2s}
.pricing-scroll:hover{transform:translateY(-50%) scale(1.05);background:var(--accent);color:#fff}
.pricing-scroll-left{left:.85rem}
.pricing-scroll-right{right:.85rem}
.tier{position:relative;background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1.5px solid var(--line);border-radius:var(--radius);padding:2rem 1.55rem;display:flex;flex-direction:column;min-height:100%;box-shadow:0 1px 0 rgba(255,255,255,.5);transition:transform .22s,box-shadow .22s,border-color .22s}
.tier{scroll-snap-align:start}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(11,111,211,.28)}
.tier.free-tier{border-color:rgba(11,111,211,.28);background:linear-gradient(180deg,var(--accent-soft),var(--surface))}
.tier.featured{border-color:rgba(18,167,143,.58);box-shadow:0 18px 52px rgba(18,167,143,.18)}
.tier.featured::after{content:"Best value";position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--accent-2),#0b7f73);color:#fff;padding:.28rem .8rem;border-radius:999px;text-transform:uppercase;letter-spacing:.06em;font-size:.69rem;font-weight:850;white-space:nowrap}
.tier h3{font-size:1.25rem;color:var(--primary);margin-bottom:.4rem}
.tier-price{font-size:2.55rem;line-height:1;color:var(--primary);font-weight:880;margin-bottom:.3rem}
.tier-desc{color:var(--muted);font-size:.88rem;margin-bottom:1.15rem}
.tier ul{list-style:none;display:grid;gap:.58rem;margin-bottom:1.45rem;flex:1}
.tier li{display:flex;align-items:center;gap:.55rem;color:var(--text);font-size:.86rem;line-height:1.45;white-space:nowrap}
.tier li::before{content:"\2713";color:var(--accent-2);font-weight:900;flex:0 0 auto}
.tier-actions{display:grid;gap:.68rem;margin-top:auto}
.tier-actions .btn{width:100%}

.cta-section{text-align:center;background:linear-gradient(135deg,#0a2540 0%,#124868 58%,#0a6b66 100%);color:#fff}
.cta-section h2{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:830;margin-bottom:.75rem}
.cta-section p{max-width:560px;margin:0 auto 1.8rem;color:rgba(255,255,255,.78);font-size:1.05rem}
footer{background:#071b2d;color:rgba(255,255,255,.62);text-align:center;padding:2.1rem 1rem;font-size:.85rem}
footer a{color:rgba(255,255,255,.86);text-decoration:none;font-weight:700}
footer a:hover{color:#fff;text-decoration:underline}
[data-theme="dark"] footer{background:#060b10}

.page-hero{padding:8.5rem 1.5rem 4.4rem;background-image:var(--hero-bg),url("assets/imdai_logo.png");background-repeat:no-repeat;background-position:center,right 8% center;background-size:auto,clamp(220px,34vw,440px)}
.page-hero h1{max-width:760px;font-size:clamp(2.15rem,5vw,4.2rem);line-height:1.06;color:var(--primary);font-weight:850;margin-bottom:1rem}
.page-hero p:not(.hero-badge){max-width:660px;color:var(--muted);font-size:1.12rem;line-height:1.75}
.purchase-page{padding-top:3rem;background:var(--bg)}
.purchase-wrapper{max-width:960px;margin:0 auto}
.purchase-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.purchase-mode-tabs{display:grid;grid-template-columns:repeat(2,1fr);background:var(--surface-2);border-bottom:1px solid var(--line);padding:.7rem;gap:.7rem}
.purchase-mode-tab{padding:.88rem 1rem;border-radius:11px;background:transparent;color:var(--muted);font-weight:800;cursor:pointer;transition:background .2s,color .2s,box-shadow .2s}
.purchase-mode-tab.is-active{background:var(--surface);color:var(--primary);box-shadow:var(--soft-shadow)}
.purchase-body{padding:2rem}
.purchase-heading{margin-bottom:1.45rem}
.purchase-heading h2{font-size:1.85rem;color:var(--primary);line-height:1.18;margin-bottom:.45rem}
.purchase-heading p{color:var(--muted)}
.purchase-plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-bottom:1.4rem}
.purchase-plan-card{text-align:left;background:var(--surface-2);border:1.5px solid var(--line);border-radius:14px;padding:1.1rem;cursor:pointer;min-height:150px;transition:transform .2s,border-color .2s,box-shadow .2s,background .2s}
.purchase-plan-card:hover{transform:translateY(-2px);box-shadow:var(--soft-shadow)}
.purchase-plan-card.is-active{border-color:var(--accent-2);background:linear-gradient(180deg,var(--mint-soft),var(--surface));box-shadow:0 12px 30px rgba(18,167,143,.14)}
.purchase-plan-badge{display:inline-flex;padding:.25rem .55rem;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:.72rem;font-weight:850;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.8rem}
.purchase-plan-card h3{font-size:.98rem;color:var(--primary);line-height:1.35;margin-bottom:.7rem}
.purchase-plan-card strong{display:block;color:var(--primary);font-size:1.85rem;line-height:1}
.purchase-error{display:none;background:#fff4f4;border:1px solid rgba(214,70,70,.25);color:#a32b2b;border-radius:12px;padding:.85rem 1rem;margin:0 0 1.1rem;font-weight:700}
.purchase-error.is-visible{display:block}
[data-theme="dark"] .purchase-error{background:rgba(214,70,70,.12);color:#ffabab}
.purchase-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem;margin-bottom:1.6rem}
.purchase-field input{width:100%;height:48px;border:1px solid var(--line);border-radius:11px;background:var(--surface-2);color:var(--text);padding:0 1rem;outline:none;transition:border-color .2s,box-shadow .2s,background .2s}
.purchase-field input:focus{border-color:rgba(11,111,211,.55);box-shadow:0 0 0 4px rgba(11,111,211,.1);background:var(--surface)}
.purchase-payment-title{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem}
.purchase-payment-title h3{color:var(--primary);font-size:1.2rem}
.purchase-summary{padding:.45rem .75rem;border-radius:999px;background:var(--mint-soft);color:#087b6f;font-size:.85rem;font-weight:850;white-space:nowrap}
[data-theme="dark"] .purchase-summary{color:var(--accent-2)}
.purchase-payment-list{display:grid;gap:1rem}
.purchase-payment-card{border:1px solid var(--line);border-radius:14px;background:var(--surface-2);overflow:hidden}
.purchase-payment-header{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.15rem;cursor:pointer;color:#fff;font-weight:850;text-transform:uppercase;letter-spacing:.03em}
.purchase-payment-header.crypto{background:linear-gradient(135deg,#0b6fd3,#0a4c95)}
.purchase-payment-header.preferred{background:linear-gradient(135deg,#12a78f,#0a756d)}
.purchase-payment-body{display:none;padding:1.25rem}
.purchase-payment-card.is-active .purchase-payment-body{display:block}
.purchase-payment-body h4{color:var(--primary);font-size:1.1rem;margin-bottom:.35rem}
.payment-copy{color:var(--muted);margin-bottom:1rem}
.payment-detail-list{display:grid;gap:.85rem;margin:1rem 0}
.payment-detail-item{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:1rem}
.payment-detail-item strong{display:block;color:var(--primary);font-size:.9rem;margin-bottom:.25rem}
.payment-address{display:block;color:var(--muted);font-size:.85rem;word-break:break-all}
.payment-detail-actions{display:flex;gap:.45rem;flex-wrap:wrap;justify-content:flex-end}
.copy-btn,.qr-btn{min-height:34px;padding:.45rem .7rem;border-radius:9px;background:var(--accent-soft);color:var(--accent);font-weight:800;cursor:pointer}
.qr-btn{background:var(--mint-soft);color:#087b6f}
.purchase-contact-note,.preferred-contact-note{border-radius:12px;background:var(--mint-soft);color:#087b6f;padding:.9rem 1rem;font-weight:700;margin:1rem 0}
[data-theme="dark"] .purchase-contact-note,[data-theme="dark"] .preferred-contact-note,[data-theme="dark"] .qr-btn{color:var(--accent-2)}
.purchase-action-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;margin-top:1rem}
.purchase-action-btn{min-height:44px;border-radius:10px;color:#fff;font-weight:850;cursor:pointer;transition:transform .2s,box-shadow .2s}
.purchase-action-btn:hover{transform:translateY(-1px)}
.purchase-action-btn.wa{background:#19a75b;box-shadow:0 10px 24px rgba(25,167,91,.22)}
.purchase-action-btn.tg{background:#229ed9;box-shadow:0 10px 24px rgba(34,158,217,.22)}
.purchase-action-btn.mail{background:#0a2540;box-shadow:0 10px 24px rgba(10,37,64,.22)}
.preferred-grid{display:grid;gap:.85rem}
.country-list-wrap{display:none;max-height:220px;overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.55rem;grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem}
.country-list-wrap.is-active{display:grid}
.country-item{background:var(--surface-2);border:1px solid var(--line);border-radius:9px;color:var(--text);padding:.55rem .65rem;text-align:left;cursor:pointer;font-weight:650}
.country-item:hover,.country-item.is-active{border-color:var(--accent-2);background:var(--mint-soft)}
.selected-country-box{display:none;align-items:center;gap:.45rem;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.85rem 1rem;margin-top:.9rem;color:var(--muted)}
.selected-country-box.is-active{display:flex}
.selected-country-box strong{color:var(--primary)}
.qr-modal{position:fixed;inset:0;z-index:300;background:rgba(4,12,20,.62);display:flex;align-items:center;justify-content:center;padding:1rem}
.qr-modal[hidden]{display:none}
.qr-modal-card{width:min(420px,100%);background:var(--surface);border-radius:18px;padding:1.25rem;text-align:center;box-shadow:var(--shadow)}
.qr-modal-card h3{color:var(--primary);margin-bottom:1rem}
.qr-modal-card img{display:block;width:100%;max-width:320px;margin:0 auto 1rem;border-radius:14px;border:1px solid var(--line)}

.chat-widget{position:fixed;right:18px;bottom:18px;z-index:220;display:grid;gap:.75rem;justify-items:end}
.chat-actions{display:flex;gap:.65rem}
.chat-button{position:relative;width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 16px 36px rgba(0,0,0,.26);animation:contactPulse 1.9s infinite;text-decoration:none}
.chat-button::before{content:"";position:absolute;inset:-8px;border-radius:inherit;border:2px solid currentColor;opacity:.42;animation:contactWave 1.9s infinite;pointer-events:none}
.chat-button svg{width:35px;height:35px;fill:currentColor;position:relative}
.chat-button.whatsapp{background:#20c269;color:#fff}
.chat-button.telegram{background:#229ed9;animation-delay:.5s}
.chat-button.telegram::before{animation-delay:.5s}
.chat-popup{display:none;align-items:center;gap:.7rem;background:var(--surface);color:var(--primary);border:1px solid var(--line);border-radius:14px;padding:.8rem .9rem;box-shadow:var(--shadow);font-weight:800;max-width:none;white-space:nowrap}
.chat-popup.is-visible{display:flex}
.chat-popup button{width:22px;height:22px;border-radius:50%;background:var(--surface-2);color:var(--muted);cursor:pointer;font-size:1rem;line-height:1}
@keyframes contactPulse{
  0%{box-shadow:0 0 0 0 rgba(18,167,143,.42),0 16px 36px rgba(0,0,0,.26)}
  65%{box-shadow:0 0 0 22px rgba(18,167,143,0),0 16px 36px rgba(0,0,0,.26)}
  100%{box-shadow:0 0 0 0 rgba(18,167,143,0),0 16px 36px rgba(0,0,0,.26)}
}
@keyframes contactWave{
  0%{transform:scale(.86);opacity:.48}
  70%{transform:scale(1.52);opacity:0}
  100%{transform:scale(.86);opacity:0}
}

.login-page{min-height:100vh;background:var(--hero-bg);display:flex;align-items:center;justify-content:center;padding:6rem 1.5rem 2rem;position:relative;overflow:hidden}
.login-page::before{content:"";position:absolute;right:-80px;top:12%;width:430px;height:430px;background:url("assets/imdai_logo.png") center/contain no-repeat;opacity:.12;filter:drop-shadow(0 30px 60px rgba(9,37,64,.22));pointer-events:none}
[data-theme="dark"] .login-page::before{opacity:.28;filter:drop-shadow(0 0 22px rgba(104,183,255,.4))}
.auth-theme-toggle{position:fixed;top:1rem;right:1rem;z-index:4}
.auth-card{position:relative;z-index:1;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:2.35rem 2rem;width:100%;max-width:390px;text-align:center;box-shadow:var(--shadow)}
.auth-logo{width:76px;height:76px;margin:0 auto .9rem;border-radius:16px;object-fit:contain;background:#fff;box-shadow:0 14px 28px rgba(9,37,64,.14)}
.auth-card h1{font-size:1.65rem;font-weight:850;color:var(--primary);line-height:1.15;margin-bottom:.25rem}
.auth-subtitle{color:var(--muted);font-size:.94rem;margin-bottom:1.55rem}
.auth-card input{display:block;width:100%;height:49px;padding:0 1rem;margin-bottom:.8rem;font-size:.95rem;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;color:var(--text);outline:none;transition:border-color .2s,box-shadow .2s,background .2s}
.auth-card input:focus{border-color:rgba(11,111,211,.55);box-shadow:0 0 0 4px rgba(11,111,211,.1);background:var(--surface)}
.auth-card input::placeholder{color:var(--muted)}
.auth-actions{display:grid;gap:.75rem;margin-top:.4rem}
.auth-error{color:#cf222e;font-size:.85rem;margin-top:.9rem;min-height:1.2em;font-weight:700}
[data-theme="dark"] .auth-error{color:#ffabab}
.auth-note{margin-top:1.1rem;color:var(--muted);font-size:.78rem;line-height:1.55}

@media(max-width:940px){
  .features-grid,.steps,.purchase-plan-grid{grid-template-columns:1fr}
  .tiers{grid-template-columns:repeat(4,minmax(310px,1fr))}
  .hero-visual{right:-120px;width:360px;opacity:.14}
  [data-theme="dark"] .hero-visual{opacity:.34}
  .hero-stats{grid-template-columns:1fr}
}
@media(max-width:780px){
  .nav-shell{height:64px;padding:0 1rem}
  .nav-toggle{display:flex}
  .nav-links{position:fixed;left:1rem;right:1rem;top:76px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:1rem;display:none;flex-direction:column;align-items:stretch;gap:.7rem}
  body[data-nav-open] .nav-links{display:flex}
  .nav-links a:not(.btn),.nav-links .theme-toggle{width:100%;text-align:left}
  .theme-toggle{display:flex;align-items:center;justify-content:center}
  .hero,.page-hero{padding-left:1rem;padding-right:1rem;background-position:center,right -150px center;background-size:auto,300px}
  .hero-visual{right:-150px;width:300px}
  .hero h1{font-size:2.65rem}
  section{padding:4rem 1rem}
  .purchase-body{padding:1.2rem}
  .purchase-form,.purchase-action-row,.payment-detail-item{grid-template-columns:1fr}
  .purchase-payment-title{align-items:flex-start;flex-direction:column}
  .purchase-summary{white-space:normal}
  .payment-detail-actions{justify-content:flex-start}
  .country-list-wrap{grid-template-columns:1fr}
  .tiers{grid-template-columns:repeat(4,minmax(310px,1fr))}
}
@media(max-width:480px){
  .hero{min-height:auto;padding-top:7rem}
  .hero h1{font-size:2.25rem}
  .hero-actions{display:grid}
  .btn{width:100%}
  .purchase-mode-tabs{grid-template-columns:1fr}
  .pricing-rail{width:100%;margin:0}
  .pricing-scroll{display:none}
  .tiers{grid-template-columns:1fr;overflow-x:visible;width:100%;margin:0;padding:0;cursor:default}
  .tier li{white-space:nowrap;align-items:center;font-size:.84rem}
  .chat-button{width:50px;height:50px}
  .chat-button svg{width:28px;height:28px}
  .chat-popup{max-width:calc(100vw - 2rem);white-space:nowrap;text-align:left;font-size:.84rem}
  .auth-card{padding:2rem 1.25rem}
}