* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0f2fe 0%, #c7d2fe 50%, #fde68a 100%);
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 24px;
    padding: 40px 35px;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.2);
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 30px;
    color: #0f172a;
    margin-bottom: 8px;
}

.login-header p {
    color: #475467;
    font-size: 15px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #0f172a;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 2px solid rgba(148, 163, 184, 0.6);
    font-size: 15px;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #007AFF;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.15);
}

.login-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, #007AFF 0%, #0051D5 100%);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 10px 25px rgba(0, 122, 255, 0.3);
    margin-top: 10px;
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 15px 30px rgba(0, 122, 255, 0.35);
}

.login-btn:active {
    transform: translateY(0);
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    color: #475467;
    font-size: 14px;
}

.login-footer a {
    color: #007AFF;
    font-weight: 600;
    text-decoration: none;
}

.error-message {
    margin-top: 12px;
    padding: 10px;
    background: rgba(255, 59, 48, 0.1);
    color: #B91C1C;
    border: 1px solid rgba(255, 59, 48, 0.2);
    border-radius: 10px;
    font-size: 14px;
    display: none;
}