:root {
    --bg: #f6f5f0;
    --ink: #0f1a14;
    --muted: #6b7a6f;
    --aqua: #0d9488;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    min-height: 100%;
}

.login-link {
    position: fixed;
    top: 1.5rem;
    right: 1.75rem;
    z-index: 20;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: -0.005em;
    color: var(--ink);
    text-decoration: none;
    padding: 0.55rem 1.1rem;
    border: 1px solid rgba(15, 26, 20, 0.16);
    border-radius: 999px;
    background: rgba(246, 245, 240, 0.6);
    backdrop-filter: saturate(140%) blur(6px);
    -webkit-backdrop-filter: saturate(140%) blur(6px);
    transition: border-color 200ms ease, color 200ms ease, background 200ms ease;
    opacity: 0;
    transform: translateY(-6px);
}

.login-link:hover {
    color: var(--aqua);
    border-color: var(--aqua);
    background: rgba(13, 148, 136, 0.06);
}

@media (max-width: 480px) {
    .login-link {
        top: 1rem;
        right: 1rem;
        font-size: 0.85rem;
        padding: 0.45rem 0.9rem;
    }
}

body {
    background-color: var(--bg);
    color: var(--ink);
    font-family: 'Urbanist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.container {
    max-width: 720px;
    padding: 2rem;
    text-align: center;
    position: relative;
    z-index: 10;
}

.logo {
    width: clamp(280px, 46vw, 520px);
    height: auto;
    display: block;
    margin: 0 auto 2.25rem;
    opacity: 0;
    transform: translateY(16px);
}

.description {
    font-size: 1.2rem;
    line-height: 1.6;
    color: rgba(15, 26, 20, 0.78);
    font-weight: 400;
    letter-spacing: -0.005em;
    max-width: 520px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(16px);
}

.fade-in {
    animation: fadeInUp 1.2s ease-out forwards;
}

.fade-in-up {
    animation: fadeInUp 1.2s ease-out 0.4s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Subtle aqua glow that tracks the mouse */
.background-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 720px;
    height: 720px;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.07) 0%, rgba(13, 148, 136, 0) 65%);
    z-index: -1;
    pointer-events: none;
    border-radius: 50%;
    will-change: transform;
}

@media (max-width: 768px) {
    .logo {
        width: 72vw;
    }
    .description {
        font-size: 1.05rem;
    }
}