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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-container {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 450px;
}

.logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo img {
    max-width: 200px;
    height: auto;
}

h1 {
    text-align: center;
    color: #1e293b;
    margin-bottom: 0.5rem;
    font-size: 1.75rem;
}

p {
    text-align: center;
    color: #64748b;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

input, select {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: #667eea;
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.error-message {
    background: #fee2e2;
    color: #991b1b;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: none;
}

.success-message {
    background: #d1fae5;
    color: #065f46;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: none;
}

.password-requirements {
    margin-top: 0.5rem;
}

.password-requirements small {
    color: #64748b;
    font-size: 0.875rem;
}

.btn-loading {
    display: none;
}

.back-link {
    text-align: center;
    margin-top: 1.5rem;
}

.back-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.back-link a:hover {
    text-decoration: underline;
}

.back-link span {
    color: #94a3b8;
}