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

:root {
    --solvere-cyan: #00aed3;
    --solvere-gray: #8d8d8c;
    --solvere-dark: #1a1a1a;
    --solvere-light: #f5f5f5;
    --solvere-white: #ffffff;
    --solvere-border: #e0e0e0;
    --solvere-text: #333333;
    --solvere-text-light: #666666;
    --solvere-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --solvere-shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.08);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #f0f2f5 0%, #e8eaed 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

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

.login-card {
    background: var(--solvere-white);
    border-radius: 20px;
    padding: 1.75rem;
    box-shadow: var(--solvere-shadow-lg);
    transition: transform 0.2s ease;
}

    .login-card:hover {
        transform: translateY(-2px);
    }

/* Logo Section */
.logo-section {
    text-align: center;
    margin-bottom: 1.25rem;
}

.solvere-logo {
    margin-bottom: 0.25rem;
}

.solvere-text {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: -0.5px;
    color: var(--solvere-cyan);
    line-height: 1;
    font-family: 'Inter', sans-serif;
}

.tech-stack {
    display: flex;
    justify-content: center;
    margin-top: -0.25rem;
}

.tech-text {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--solvere-gray);
    text-transform: uppercase;
}

.divider {
    width: 100%;
    height: 1px;
    background: var(--solvere-cyan);
    margin: 0.75rem auto;
    opacity: 0.3;
}

.login-subtitle {
    color: var(--solvere-text-light);
    font-size: 0.7rem;
    font-weight: 400;
    margin-top: 0.25rem;
}

/* Formulario */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--solvere-text);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.5px;
}

.input-group {
    display: flex;
    align-items: stretch;
    position: relative;
}

.input-group-text {
    background: var(--solvere-light);
    border: 1px solid var(--solvere-border);
    border-right: none;
    padding: 0.6rem 0.9rem;
    color: var(--solvere-gray);
    border-radius: 10px 0 0 10px;
}

.form-control {
    background: var(--solvere-light);
    border: 1px solid var(--solvere-border);
    color: var(--solvere-text);
    padding: 0.6rem 0.9rem;
    font-size: 0.85rem;
    width: 100%;
    border-radius: 0 10px 10px 0;
    transition: all 0.2s ease;
}

    .form-control:focus {
        outline: none;
        border-color: var(--solvere-cyan);
        background: var(--solvere-white);
        box-shadow: 0 0 0 3px rgba(0, 174, 211, 0.08);
    }

    .form-control::placeholder {
        color: #b0b0b0;
        font-size: 0.8rem;
    }

/* Password toggle button */
.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--solvere-gray);
    cursor: pointer;
    z-index: 10;
    padding: 0;
    font-size: 0.9rem;
}

    .password-toggle:hover {
        color: var(--solvere-cyan);
    }

/* Botón principal */
.btn-login {
    background: var(--solvere-cyan);
    border: none;
    padding: 0.7rem;
    font-size: 0.85rem;
    font-weight: 600;
    width: 100%;
    border-radius: 10px;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0.25rem;
}

    .btn-login:hover {
        background: #0098b8;
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(0, 174, 211, 0.25);
    }

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

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--solvere-text-light);
    font-size: 0.75rem;
}

    .checkbox-label input {
        width: 14px;
        height: 14px;
        cursor: pointer;
        accent-color: var(--solvere-cyan);
    }

/* Alertas */
.alert-danger {
    background: #fef2f0;
    border-left: 3px solid #e76d5e;
    color: #c15344;
    border-radius: 10px;
    padding: 0.6rem 0.9rem;
    margin-bottom: 1rem;
    font-size: 0.75rem;
}

.alert-success {
    background: #e8f5f0;
    border-left: 3px solid var(--solvere-cyan);
    color: #2c6b5e;
    border-radius: 10px;
    padding: 0.6rem 0.9rem;
    margin-bottom: 1rem;
    font-size: 0.75rem;
}

/* Footer */
.footer-links {
    text-align: center;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--solvere-border);
}

    .footer-links a {
        color: var(--solvere-cyan);
        text-decoration: none;
        font-size: 0.75rem;
        font-weight: 500;
        transition: color 0.2s ease;
    }

        .footer-links a:hover {
            color: #0098b8;
            text-decoration: none;
        }

.version {
    text-align: center;
    margin-top: 0.75rem;
    color: var(--solvere-text-light);
    font-size: 0.6rem;
}

.text-danger {
    color: #e76d5e !important;
    font-size: 0.65rem;
    margin-top: 0.2rem;
    display: block;
}

/* Animación */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card {
    animation: fadeInUp 0.4s ease-out;
}

.fa-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 1.25rem;
    }

    .solvere-text {
        font-size: 2rem;
    }

    .tech-text {
        font-size: 0.6rem;
    }
}