/* Base Reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
	margin: 0;
	font-family: "Montserrat", ui-sans-serif, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
	color: #e6e6e6;
	background: radial-gradient(1200px 50px at 20% -10%, #21283a 0%, #0b0f16 60%);
	line-height: 1.6;
	text-rendering: optimizeLegibility;
	-webkit-font-smoothing: antialiased;
}

:root {
	--container-w: min(1100px, 92vw);
	--accent: #7cf3c6;
	--accent-2: #7cabf3;
	--muted: #aab4c3;
	--panel: rgba(255,255,255,0.06);
	--panel-2: rgba(255,255,255,0.08);
	--shadow: 0 10px 30px rgba(0,0,0,0.35);
}

/* Background visuals */
.bg { position: fixed; inset: 0; overflow: hidden; z-index: -1; }
.bg .blob { position: absolute; filter: blur(40px); opacity: 0.5; mix-blend-mode: screen; }
.bg .b1 { width: 55vmax; height: 55vmax; background: radial-gradient(circle at 30% 30%, var(--accent), transparent 60%); top: -15vmax; left: -10vmax; animation: float1 12s ease-in-out infinite; }
.bg .b2 { width: 65vmax; height: 65vmax; background: radial-gradient(circle at 70% 70%, var(--accent-2), transparent 60%); bottom: -20vmax; right: -15vmax; animation: float2 14s ease-in-out infinite; }
.bg .net { position: absolute; inset: 0; width: 100%; height: 100%; display: block; opacity: 0.6; pointer-events: none; z-index: -1; }
.bg .grid { position: absolute; inset: -40% -40% 0 -40%; background: repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 80px), repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 80px); transform: perspective(800px) rotateX(60deg) translateY(-18%); opacity: 0.25; }

@keyframes float1 { 0%,100% { transform: translate3d(0,0,0); } 50% { transform: translate3d(2vw, -1vh, 0); } }
@keyframes float2 { 0%,100% { transform: translate3d(0,0,0); } 50% { transform: translate3d(-2vw, 1.5vh, 0); } }

/* Layout */
.container { width: var(--container-w); margin: 0 auto; padding: 0 1rem; }
.site-header { position: sticky; top: 0; backdrop-filter: saturate(140%) blur(8px); background: linear-gradient(180deg, rgba(11,15,22,0.75), rgba(11,15,22,0.35) 70%, transparent); border-bottom: 1px solid rgba(255,255,255,0.06); z-index: 20; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0.5rem; }
.brand .logo { font-size: 1.25rem; letter-spacing: 0.04em; font-weight: 700; color: #fff; }
.nav { display: flex; gap: 0.75rem; align-items: center; }
.nav-link { color: var(--muted); text-decoration: none; padding: 0.5rem 0.75rem; border-radius: 999px; transition: color .2s ease, background-color .2s ease; }
.nav-link:hover { color: #fff; background: var(--panel); }

.lang-switcher { display: flex; align-items: center; background: var(--panel); border: 1px solid rgba(255,255,255,0.12); border-radius: 20px; padding: 0.25rem; cursor: pointer; transition: all .2s ease; }
.lang-switcher:hover { background: var(--panel-2); }
.lang-current, .lang-alt { padding: 0.25rem 0.5rem; border-radius: 16px; font-size: 0.8rem; font-weight: 600; transition: all .2s ease; }
.lang-current { background: var(--accent); color: #0b0f16; }
.lang-alt { color: var(--muted); }
.lang-switcher[data-lang="ru"] .lang-current { background: transparent; color: var(--muted); }
.lang-switcher[data-lang="ru"] .lang-alt { background: var(--accent); color: #0b0f16; }

.hero { display: grid; place-items: center; min-height: clamp(72vh, 84vh, 92vh); padding: 7vh 0 9vh; }
.card { background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04)); border: 1px solid rgba(255,255,255,0.12); border-radius: 24px; padding: clamp(1rem, 4vw, 2.25rem); box-shadow: var(--shadow); max-width: 900px; position: relative; overflow: hidden; }
.card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(80% 60% at 10% 0%, rgba(124,243,198,0.15), transparent 60%), radial-gradient(60% 60% at 100% 20%, rgba(124,171,243,0.12), transparent 60%); pointer-events: none; }
.hero-title { font-size: clamp(1.8rem, 3.8vw, 3rem); margin: 0 0 0.5rem; letter-spacing: 0.01em; }
.hero-subtitle { margin: 0 0 0.5rem; color: #ffffff; opacity: 0.9; font-size: clamp(1.05rem, 2.2vw, 1.25rem); }
.hero-note { margin: 0 0 1.25rem; color: var(--muted); }
.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 1.1rem; border-radius: 12px; border: 1px solid rgba(255,255,255,0.18); text-decoration: none; color: #0b0f16; background: #eef7f4; font-weight: 600; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease; box-shadow: 0 6px 20px rgba(124,243,198,0.25); }
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(124,243,198,0.35); }
.btn.ghost { background: transparent; color: #e6e6e6; border-color: rgba(255,255,255,0.22); box-shadow: none; }
.btn.ghost:hover { background: rgba(255,255,255,0.06); }

.future { padding: 0 0 5vh; }
.future h2 { padding: 8vh 0 0.6rem; font-size: clamp(1.6rem, 3vw, 2.6rem); }
.future .lead { color: #d7e6ff; opacity: 0.95; margin-top: 0.5rem; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.9rem; padding: 0; margin: 1.25rem 0 0; list-style: none; }
.features li { background: var(--panel); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 1rem 1.1rem; display: grid; gap: 0.25rem; }
.feature-title { color: #ffffff; font-weight: 700; }
.feature-desc { color: #d0def2; opacity: 0.95; }

.web3 { padding: 0 0 9vh; }
.web3 h2 { margin: 0; padding: 7vh 0 0.6rem; }
.web3 .muted { color: var(--muted); max-width: 60ch; }
.flip { display: inline-block; position: relative; min-width: 4.6ch; }
.flip > .fl-front, .flip > .fl-back { transition: opacity .4s ease; }
.flip > .fl-front { opacity: 1; }
.flip > .fl-back { opacity: 0; position: absolute; left: 0; top: 0; }
.flip[data-flip] > .fl-front { opacity: 0; }
.flip[data-flip] > .fl-back { opacity: 1; }

.site-footer { padding: 2rem 0 3rem; color: var(--muted); text-align: center; border-top: 1px solid rgba(255,255,255,0.06); background: linear-gradient(180deg, rgba(11,15,22,0.2), rgba(11,15,22,0.45)); }
.site-footer .links { margin: 0.5rem 0 0; }
.site-footer .links a { color: #cfe7ff; text-decoration: none; }
.site-footer .links .sep { opacity: 0.5; margin: 0 0.5rem; }

.noscript { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); background: #222834; color: #fff; border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; padding: 0.5rem 0.75rem; box-shadow: var(--shadow); }

/* Interactions */
.tilt { will-change: transform; transition: transform .25s cubic-bezier(.2,.7,.2,1); transform-style: preserve-3d; }
.tilt .hero-title, .tilt .hero-subtitle, .tilt .hero-note, .tilt .cta { transform: translateZ(0); }

/* Responsive */
@media (max-width: 1024px) {
	.features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
	.features { grid-template-columns: 1fr; }
	.nav { gap: 0.25rem; }
	.nav-link { padding: 0.4rem 0.6rem; }
}

@media (prefers-reduced-motion: reduce) {
	* { animation: none !important; transition: none !important; }
}