:root {
    --bg: #e6f5f5;
    --bg-secondary: #f4fbfb;
    --card: #ffffff;
    --text-primary: #0b1f33;
    --text-muted: #4b5d72;
    --accent: #008080;
    --accent-soft: rgba(0, 128, 128, 0.12);
    --accent-neon: #00c4c4;
    --divider: rgba(11, 31, 51, 0.08);
    --muted-strong: rgba(11, 31, 51, 0.45);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --shadow: 0 30px 60px rgba(0, 69, 69, 0.12);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-primary);
    background:
        radial-gradient(520px 420px at 12% 18%, rgba(0, 128, 128, 0.14), transparent 72%),
        radial-gradient(640px 520px at 88% 12%, rgba(0, 196, 196, 0.12), transparent 68%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-secondary) 100%);
}

.page {
    position: relative;
    min-height: 100vh;
    padding: clamp(18px, 3.4vw, 42px) clamp(24px, 5vw, 64px);
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: clamp(40px, 7vw, 64px);
    overflow: hidden;
}

.page::before,
.page::after {
    content: "";
    position: absolute;
    inset: auto;
    border-radius: 50%;
    opacity: 0.4;
    pointer-events: none;
}

.page::before {
    width: clamp(380px, 46vw, 580px);
    height: clamp(380px, 46vw, 580px);
    top: clamp(-220px, -12vw, -140px);
    right: clamp(-180px, -10vw, -60px);
    background: radial-gradient(circle, rgba(0, 128, 128, 0.28), transparent 70%);
    filter: blur(4px);
}

.page::after {
    width: clamp(320px, 38vw, 520px);
    height: clamp(320px, 38vw, 520px);
    bottom: clamp(-260px, -14vw, -120px);
    left: clamp(-210px, -12vw, -80px);
    background: radial-gradient(circle, rgba(0, 196, 196, 0.24), transparent 70%);
    filter: blur(6px);
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    width: min(1100px, 100%);
    margin: 0 auto;
    padding-inline: clamp(4px, 1vw, 12px);
}

.site-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(1100px, 100%);
    margin: 0 auto;
    padding-inline: clamp(4px, 1vw, 12px);
    text-align: center;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: "Syne", "Inter", sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: inherit;
    text-decoration: none;
}

.brand img {
    width: clamp(94px, 14vw, 142px);
    height: auto;
}

.ghost-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.ghost-link:hover,
.ghost-link:focus-visible {
    border-color: rgba(0, 128, 128, 0.3);
    background: rgba(0, 128, 128, 0.08);
    color: var(--text-primary);
}

.hero {
    position: relative;
    width: min(1100px, 100%);
    margin: 0 auto;
}

.hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(320px, 1fr) minmax(300px, 420px);
    gap: clamp(40px, 8vw, 68px);
    align-items: center;
}

.hero-info {
    display: grid;
    gap: clamp(20px, 4vw, 28px);
    text-align: left;
    justify-items: flex-start;
    position: relative;
}

.hero-info::after {
    content: "";
    width: clamp(56px, 7vw, 76px);
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), rgba(0, 128, 128, 0));
    position: absolute;
    top: -22px;
    left: 0;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 13px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.pill::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px rgba(0, 128, 128, 0.4);
}

.hero h1 {
    margin: 0;
    font-family: "Syne", "Inter", sans-serif;
    font-size: clamp(40px, 7vw, 70px);
    line-height: 1.05;
    letter-spacing: -0.015em;
}

.intro {
    margin: 0;
    max-width: 540px;
    color: var(--muted-strong);
    line-height: 1.65;
    font-size: clamp(17px, 2.2vw, 19px);
}

.waitlist {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    width: min(460px, 100%);
}

.waitlist input {
    padding: 15px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 128, 128, 0.24);
    background: var(--card);
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.waitlist input::placeholder {
    color: rgba(75, 93, 114, 0.6);
}

.waitlist input:focus-visible {
    outline: none;
    border-color: rgba(0, 128, 128, 0.6);
    box-shadow: 0 0 0 4px rgba(0, 128, 128, 0.14);
}

.waitlist button {
    padding: 15px 24px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #ffffff;
    background: linear-gradient(135deg, var(--accent), #006d6d);
    box-shadow: 0 14px 26px rgba(0, 128, 128, 0.2);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.waitlist button:hover,
.waitlist button:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 32px rgba(0, 128, 128, 0.24);
}

.form-note {
    margin: 6px 0 0;
    font-size: 13px;
    color: rgba(11, 31, 51, 0.55);
}

.points {
    list-style: none;
    padding: 0;
    margin: 12px 0 0;
    display: grid;
    gap: 12px;
    color: var(--text-muted);
    font-size: 15px;
    justify-items: flex-start;
}

.points li {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
}

.points li::before {
    content: "✔";
    color: var(--accent);
    font-size: 16px;
    font-weight: 600;
}

.hero-visual {
    position: relative;
    min-height: clamp(360px, 55vw, 520px);
    display: grid;
    place-items: center;
}

.quantum-visual {
    position: relative;
    width: clamp(360px, 46vw, 440px);
    aspect-ratio: 3 / 4;
    display: grid;
    place-items: center;
    filter: drop-shadow(0 36px 60px rgba(0, 69, 69, 0.25));
}

.quantum-grid {
    position: absolute;
    inset: -20% -32%;
    background-image:
        linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
    transform: perspective(520px) rotateX(46deg);
    opacity: 0.45;
    animation: gridShift 16s linear infinite;
}

.quantum-helix {
    position: absolute;
    width: 92%;
    height: 108%;
    display: grid;
    place-items: center;
}

.helix {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid rgba(0, 196, 196, 0.36);
    filter: blur(0.3px);
    animation: helixRotate 14s linear infinite;
}

.helix--one { transform: rotateX(62deg); }
.helix--two { transform: rotateY(62deg); animation-duration: 18s; }
.helix--three { transform: rotate(45deg); animation-duration: 22s; }

.quantum-core {
    position: relative;
    width: 46%;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
}

.core-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.38);
    animation: ringPulse 4.8s ease-in-out infinite;
}

.core-ring--inner {
    width: 70%;
    height: 70%;
}

.core-ring--outer {
    width: 115%;
    height: 115%;
    border-color: rgba(0, 196, 196, 0.36);
    animation-delay: 1.4s;
}

.core-node {
    position: relative;
    width: 44%;
    height: 50%;
    border-radius: 18px;
    background: linear-gradient(140deg, rgba(0, 128, 128, 0.9), rgba(0, 196, 196, 0.75));
    box-shadow:
        inset -14px -16px 40px rgba(0, 52, 52, 0.55),
        inset 12px 12px 24px rgba(255, 255, 255, 0.2);
    animation: nodePulse 3.6s ease-in-out infinite;
}

.quantum-nodes {
    position: absolute;
    inset: 6%;
    pointer-events: none;
}

.anchor {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.85), rgba(0, 196, 196, 0.75));
    box-shadow: 0 0 24px rgba(0, 196, 196, 0.8);
    animation: anchorBlink 2.6s ease-in-out infinite;
}

.anchor--one { top: 12%; left: 20%; }
.anchor--two { top: 22%; right: 16%; animation-delay: 0.8s; }
.anchor--three { bottom: 18%; left: 24%; animation-delay: 1.6s; }
.anchor--four { bottom: 10%; right: 22%; animation-delay: 2.4s; }

.site-footer p {
    margin: 0;
    color: rgba(11, 31, 51, 0.5);
    font-size: 14px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 640px) {
    body {
        padding: 24px 18px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-info {
        text-align: center;
        justify-items: center;
    }

    .hero-info::after {
        display: none;
    }

    .points {
        justify-items: center;
        gap: 10px;
    }

    .waitlist {
        grid-template-columns: 1fr;
    }

    .waitlist button {
        width: 100%;
    }

    .quantum-visual {
        width: min(300px, 100%);
    }
}

@keyframes frameGlow {
    0%, 100% { opacity: 0.45; }
    50% { opacity: 0.75; }
}

@keyframes gridShift {
    0% { transform: perspective(600px) rotateX(30deg) translateY(0); }
    100% { transform: perspective(600px) rotateX(30deg) translateY(-40px); }
}

@keyframes helixRotate {
    to { transform: rotate(360deg); }
}

@keyframes ringPulse {
    0%, 100% { opacity: 0.4; transform: scale(0.96); }
    50% { opacity: 0.8; transform: scale(1); }
}

@keyframes nodePulse {
    0%, 100% { transform: scale(0.94); }
    50% { transform: scale(1.02); }
}

@keyframes anchorBlink {
    0%, 100% { opacity: 0.5; transform: scale(0.9); }
    50% { opacity: 1; transform: scale(1.1); }
}