:root {
    --bg: #0b1020;
    --bg-2: #141b35;
    --card: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.10);
    --text: #eef1f8;
    --muted: #9aa4c0;
    --accent: #6c8cff;
    --accent-2: #8b5cf6;
    --ok-bg: rgba(34, 197, 94, 0.12);
    --ok-border: rgba(34, 197, 94, 0.45);
    --ok-text: #b6f3cd;
    --err-bg: rgba(239, 68, 68, 0.12);
    --err-border: rgba(239, 68, 68, 0.45);
    --err-text: #fecaca;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(1200px 600px at 80% -10%, rgba(139, 92, 246, 0.25), transparent 60%),
        radial-gradient(900px 500px at -10% 20%, rgba(108, 140, 255, 0.22), transparent 55%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.wrap {
    width: 100%;
    max-width: 560px;
    text-align: center;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 20px;
    letter-spacing: -0.01em;
    margin-bottom: 28px;
}

.brand .dot {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: grid;
    place-items: center;
    box-shadow: 0 8px 24px rgba(108, 140, 255, 0.35);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    background: var(--card);
    border: 1px solid var(--border);
    padding: 7px 14px;
    border-radius: 999px;
    margin-bottom: 22px;
}

.badge .pulse {
    width: 8px; height: 8px; border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

h1 {
    font-size: clamp(30px, 6vw, 46px);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 16px;
}

h1 .grad {
    background: linear-gradient(135deg, #a5b8ff, #c4a5ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lead {
    font-size: 17px;
    line-height: 1.6;
    color: var(--muted);
    margin: 0 auto 28px;
    max-width: 460px;
}

.features {
    list-style: none;
    padding: 0;
    margin: 0 auto 32px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.features li {
    font-size: 14px;
    color: var(--text);
    background: var(--card);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: 10px;
}

form.signup {
    display: flex;
    gap: 10px;
    background: var(--card);
    border: 1px solid var(--border);
    padding: 8px;
    border-radius: 14px;
    backdrop-filter: blur(8px);
}

form.signup input[type="email"] {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font-size: 16px;
    padding: 12px 14px;
}

form.signup input::placeholder { color: var(--muted); }

form.signup button {
    border: none;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    padding: 12px 22px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    transition: transform .08s ease, filter .2s ease;
    white-space: nowrap;
}

form.signup button:hover { filter: brightness(1.08); }
form.signup button:active { transform: translateY(1px); }

.message {
    margin: 16px auto 0;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
    text-align: left;
}
.message.success { background: var(--ok-bg); border: 1px solid var(--ok-border); color: var(--ok-text); }
.message.error   { background: var(--err-bg); border: 1px solid var(--err-border); color: var(--err-text); }

.privacy {
    margin-top: 16px;
    font-size: 12.5px;
    color: var(--muted);
    line-height: 1.5;
}

footer {
    margin-top: 44px;
    font-size: 12.5px;
    color: var(--muted);
}

@media (max-width: 480px) {
    form.signup { flex-direction: column; }
    form.signup button { width: 100%; }
}