:root {
    --accent: #6366f1;
    --ok: #4ade80;
    --down: #f87171;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: "DM Sans", system-ui, sans-serif;
    color: #e8edf7;
    line-height: 1.55;
}

.landing-page {
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 15%, rgba(99, 102, 241, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 80% 85%, rgba(56, 189, 248, 0.12) 0%, transparent 40%),
        linear-gradient(160deg, #070b14 0%, #0f172a 55%, #111827 100%);
}

.landing {
    width: min(760px, 100%);
    margin: 0 auto;
    padding: 2.75rem 1.25rem 2rem;
}

.landing-hero { text-align: center; margin-bottom: 1.5rem; }
.landing-logo {
    width: clamp(168px, 32vw, 220px);
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.35));
}

.host-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.host-card {
    background: rgba(17, 26, 46, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1.25rem 1.3rem;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
    transition: border-color 0.2s ease;
}
.host-card.is-up { border-color: rgba(74, 222, 128, 0.28); }
.host-card.is-down { border-color: rgba(248, 113, 113, 0.4); }

.host-card-head {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: center;
}

.host-card h2 { margin: 0; font-size: 1.15rem; }

.status-dot {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 0.28rem 0.7rem;
    border-radius: 999px;
}
.status-dot::before {
    content: "";
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 50%;
    background: currentColor;
}
.status-dot--ok { color: var(--ok); background: rgba(22, 163, 74, 0.16); }
.status-dot--ok::before { animation: status-live 1.6s ease-out infinite; }
.status-dot--down { color: var(--down); background: rgba(220, 38, 38, 0.16); }
.status-dot--unknown { color: #cbd5e1; background: rgba(148, 163, 184, 0.16); }

@keyframes status-live {
    0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.55); }
    70% { box-shadow: 0 0 0 0.45rem rgba(74, 222, 128, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.chpass {
    margin-top: 1.15rem;
    background: rgba(17, 26, 46, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1.2rem 1.25rem 1.3rem;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}
.chpass-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}
.chpass label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: #8fa0bf;
}
.chpass input[type="text"],
.chpass input[type="password"] {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(7, 11, 20, 0.7);
    color: #e8edf7;
    border-radius: 10px;
    padding: 0.62rem 0.75rem;
    font: inherit;
    font-size: 0.95rem;
}
.chpass input:focus {
    outline: 2px solid rgba(99, 102, 241, 0.55);
    outline-offset: 1px;
}
.chpass-submit {
    display: block;
    width: 100%;
    margin-top: 0.95rem;
    border: 0;
    border-radius: 10px;
    padding: 0.72rem 1rem;
    font: inherit;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #eef2ff;
    background: var(--accent);
    cursor: pointer;
}
.chpass-submit:hover { filter: brightness(1.08); }
.chpass-submit:disabled { opacity: 0.55; cursor: not-allowed; }
.chpass.is-locked { opacity: 0.72; }
.chpass.is-locked .chpass-submit { filter: none; }
.chpass-msg {
    margin: 0.8rem 0 0;
    font-size: 0.9rem;
    text-align: center;
    width: 100%;
}
.chpass-msg.is-ok { color: var(--ok); }
.chpass-msg.is-err { color: var(--down); }

@media (max-width: 560px) {
    .landing { padding: 1.75rem 1rem 1.5rem; }
    .host-card-head { flex-direction: column; }
    .chpass-grid { grid-template-columns: 1fr; }
}