:root {
    --primary: #0077B6;
    --primary-light: #00A3E0;
    --primary-dark: #005a8c;
    --danger: #e74c3c;
    --success: #27ae60;
    --dark: #0a1628;
    --gray-900: #1a202c;
    --gray-800: #2d3748;
    --gray-600: #718096;
    --gray-400: #a0aec0;
    --gray-300: #e2e8f0;
    --gray-200: #edf2f7;
    --gray-100: #f7fafc;
    --white: #ffffff;
}

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--dark) 0%, #1a2a4a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container { width: 100%; max-width: 420px; }

.login-header { text-align: center; margin-bottom: 32px; }

.logo { font-size: 32px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.logo span:first-child { color: var(--primary-light); }

.login-subtitle { color: var(--gray-400); font-size: 15px; }

.login-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.login-title { font-size: 24px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
.login-description { color: var(--gray-600); font-size: 14px; margin-bottom: 32px; }

.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 500; color: var(--gray-800); margin-bottom: 8px; }

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    color: var(--gray-900);
    transition: all 0.2s ease;
}

.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.1); }
.form-input::placeholder { color: var(--gray-400); }
.form-help { font-size: 13px; color: var(--gray-600); margin-top: 6px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.btn {
    width: 100%;
    padding: 14px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(0, 119, 182, 0.35);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0, 119, 182, 0.45); }

.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
}

.alert svg { width: 20px; height: 20px; flex-shrink: 0; }
.alert.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert.success { background: #f0fff4; color: #166534; border: 1px solid #bbf7d0; }

.divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    color: var(--gray-400);
    font-size: 13px;
}

.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--gray-200); }

.login-footer { text-align: center; margin-top: 24px; color: var(--gray-400); font-size: 14px; }
.login-footer a { color: var(--white); text-decoration: none; font-weight: 500; }
.login-footer a:hover { text-decoration: underline; }

@media (max-width: 480px) {
    .login-card { padding: 24px; }
    .form-row { grid-template-columns: 1fr; }
}