* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background: #f8f9fa;
    color: #1a1a1a;
    font-family: 'Inter', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    transition: background 0.3s, color 0.3s;
}
body.dark {
    background: #0a0a0a;
    color: #e5e7eb;
}
.login-container {
    width: 100%;
    max-width: 400px;
}
.login-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    padding: 32px 28px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
body.dark .login-card {
    background: #1a1a1a;
    border-color: #2d2d2d;
    box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.login-header {
    text-align: center;
    margin-bottom: 24px;
}
.login-header h1 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.login-header h1 .highlight { color: #ea5a0b; }
.login-header p {
    font-size: 0.8rem;
    color: #6c757d;
    margin-top: 4px;
}
body.dark .login-header p { color: #9ca3af; }

.login-form .form-group {
    margin-bottom: 16px;
}
.login-form label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
}
body.dark .login-form label { color: #d1d5db; }
.login-form input {
    width: 100%;
    padding: 8px 12px;
    background: #f8f9fa;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    color: #1a1a1a;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}
body.dark .login-form input {
    background: #0a0a0a;
    border-color: #2d2d2d;
    color: #e5e7eb;
}
.login-form input:focus {
    border-color: #ea5a0b;
}
.login-btn {
    width: 100%;
    padding: 10px;
    background: #ea5a0b;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    font-family: 'Inter', sans-serif;
    margin-top: 4px;
}
.login-btn:hover { background: #d14e0a; }
.login-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.login-error {
    display: none;
    margin-top: 12px;
    padding: 8px 12px;
    background: rgba(239,68,68,0.1);
    border: 1px solid #ef4444;
    border-radius: 4px;
    color: #ef4444;
    font-size: 0.75rem;
}

.login-footer {
    text-align: center;
    margin-top: 16px;
}
.login-footer a {
    color: #6c757d;
    text-decoration: none;
    font-size: 0.7rem;
    transition: color 0.2s;
}
.login-footer a:hover { color: #ea5a0b; }
body.dark .login-footer a { color: #9ca3af; }
body.dark .login-footer a:hover { color: #ea5a0b; }