/* Shared styles for login / signup / admin auth pages */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0d1117;
    color: #f0f6fc;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.auth-card {
    background: linear-gradient(135deg, #161b22 0%, #1c2128 100%);
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 36px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.5);
}
.auth-card h1 {
    font-size: 22px;
    margin-bottom: 6px;
    color: #58a6ff;
}
.auth-card .sub {
    font-size: 13px;
    color: #8b949e;
    margin-bottom: 24px;
}
.field { margin-bottom: 14px; }
.field label {
    display: block;
    font-size: 12px;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.field input {
    width: 100%;
    padding: 10px 12px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #f0f6fc;
    font-size: 14px;
    font-family: inherit;
}
.field input:focus {
    outline: none;
    border-color: #58a6ff;
    box-shadow: 0 0 0 3px rgba(88,166,255,0.1);
}
.field .hint { font-size: 11px; color: #6e7681; margin-top: 4px; }
.btn {
    width: 100%;
    padding: 10px 18px;
    background: linear-gradient(135deg, #238636 0%, #2ea043 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: filter 0.15s, transform 0.15s;
    font-family: inherit;
}
.btn:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-secondary {
    background: #21262d;
    color: #f0f6fc;
    border: 1px solid #30363d;
}
.btn-row { display: flex; gap: 8px; margin-top: 6px; }
.message {
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
}
.message.show { display: block; }
.message.error   { background: rgba(248,81,73,0.12); border: 1px solid #f85149; color: #ff7b72; }
.message.success { background: rgba(63,185,80,0.12); border: 1px solid #2ea043; color: #56d364; }
.message.info    { background: rgba(88,166,255,0.12); border: 1px solid #58a6ff; color: #79c0ff; }
.auth-links {
    margin-top: 18px;
    text-align: center;
    font-size: 13px;
    color: #8b949e;
}
.auth-links a { color: #58a6ff; text-decoration: none; }
.auth-links a:hover { text-decoration: underline; }
.step-hide { display: none; }
.step-show { display: block; }