:root {
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a8a 0%, #172554 50%, #0f172a 100%);
    font-family: "Inter", system-ui, sans-serif;
    color: #0f172a;
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 480px;
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.brand-logo-large {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 10px 40px rgba(16, 185, 129, 0.3);
}

.brand-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
}

.login-card {
    background: white;
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin-bottom: 1.5rem;
}

.card-header {
    margin-bottom: 2rem;
}

.card-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.5rem;
}

.card-header p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.5;
}

.alert {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.alert-icon {
    font-size: 1.25rem;
}

.alert-error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    font-size: 1.25rem;
    opacity: 0.5;
}

.input-wrapper input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s;
    background: #f8fafc;
}

.input-wrapper input:focus {
    outline: none;
    border-color: #1e3a8a;
    background: white;
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
}

.input-wrapper input::placeholder {
    color: #94a3b8;
}

.btn-primary {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #1e3a8a, #059669);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.4);
}

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

.login-footer {
    text-align: center;
}

.language-selector {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.lang-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lang-btn.active {
    background: rgba(255, 255, 255, 0.95);
    color: #1e3a8a;
    border-color: transparent;
}

.footer-text {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 640px) {
    body {
        padding: 1rem;
    }
    
    .login-card {
        padding: 1.75rem;
    }
    
    .brand-title {
        font-size: 1.5rem;
    }
}