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

html, body {
    background: #000;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Sarabun", Tahoma, sans-serif;
    min-height: 100vh;
}

body.welcome {
    display: flex;
    align-items: center;
    justify-content: center;
}
.welcome-wrap { text-align: center; }
.welcome-logo {
    max-width: 220px;
    height: auto;
    margin-bottom: 24px;
    filter: drop-shadow(0 0 12px rgba(255,255,255,0.08));
}
.welcome-text {
    color: #fff;
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 2px;
}

body.main { padding: 24px 16px 80px; }
.main-wrap {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}
.main-logo {
    max-width: 180px;
    height: auto;
    margin: 16px auto 12px;
    display: block;
}
.main-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #fff;
}

.field { text-align: left; margin-bottom: 14px; }
.field label {
    display: block;
    font-size: 13px;
    color: #aaa;
    margin-bottom: 6px;
}
.field input {
    width: 100%;
    padding: 12px 14px;
    background: #111;
    border: 1px solid #222;
    border-radius: 10px;
    color: #fff;
    font-size: 15px;
    outline: none;
}
.field input:focus { border-color: #444; }

.stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 18px 0;
}
.stat {
    background: #0c0c0c;
    border: 1px solid #1c1c1c;
    border-radius: 12px;
    padding: 14px;
}
.stat-label { font-size: 12px; color: #888; margin-bottom: 6px; }
.stat-value { font-size: 22px; font-weight: 700; color: #fff; }

.btn-run {
    width: 100%;
    padding: 14px;
    background: #fff;
    color: #000;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 8px;
}
.btn-run:disabled { opacity: 0.6; cursor: not-allowed; }

.log {
    margin-top: 20px;
    text-align: left;
    font-size: 13px;
    color: #bbb;
    background: #080808;
    border: 1px solid #1a1a1a;
    border-radius: 10px;
    padding: 10px 12px;
    max-height: 260px;
    overflow-y: auto;
}
.log div { padding: 4px 0; border-bottom: 1px solid #131313; }
.log div:last-child { border-bottom: none; }