body {
    background: linear-gradient(135deg, #e3f0ff 0%, #f0f6fe 100%);
    min-height: 100vh;
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.login-container {
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* Marcos decorativos azules */
.login-background-frame {
    position: absolute;
    inset: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
}
.login-background-frame .frame {
    position: absolute;
    border-radius: 36px;
    border: 6px solid #2B7DE9;
    opacity: 0.11;
    box-shadow: 0 0 48px 0 #2b7de9;
    transition: opacity 0.3s;
}
.login-background-frame .frame.frame1 {
    width: 82vw;
    height: 80vh;
    left: 9vw;
    top: 10vh;
    border-color: #2B7DE9;
}
.login-background-frame .frame.frame2 {
    width: 65vw;
    height: 60vh;
    left: 17vw;
    top: 19vh;
    border-color: #4B96FA;
    opacity: 0.09;
}
.login-background-frame .frame.frame3 {
    width: 45vw;
    height: 44vh;
    left: 27vw;
    top: 28vh;
    border-color: #1E5EBB;
    opacity: 0.11;
}

.login-card {
    background: var(--surface, #fff);
    border-radius: 20px;
    border: 2.5px solid #2B7DE9;
    box-shadow: 0 8px 28px 4px rgba(43,125,233,0.08), 0 2px 16px 0 #b5d6fb;
    padding: 40px 32px 32px 32px;
    min-width: 330px;
    max-width: 600px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeIn 0.5s cubic-bezier(.41,1.01,.87,1.02);
    position: relative;
    z-index: 2;
}

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

.login-logo {
    text-align: center;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-logo img {
    width: 380px;
    height: 200px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(43,125,233,0.13));
    margin-bottom: 12px; /* Espacio pequeño entre logo y título */
}

.login-logo h2 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary, #2B7DE9);
    letter-spacing: 1px;
    margin-top: 0;
}

.login-logo .tagline {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary, #718096);
    margin-top: 4px;
}

.form-group {
    width: 100%;
    margin-bottom: 22px;
}

.form-group label {
    font-size: 1rem;
    color: var(--text-primary, #2D3748);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border, #E2E8F0);
    border-radius: 8px;
    background: var(--primary-lighter, #f0f6fe);
    font-size: 1rem;
    color: var(--text-primary, #2D3748);
    outline: none;
    transition: border 0.2s;
}

.form-group input:focus {
    border: 1.5px solid var(--primary, #2B7DE9);
    background: #fff;
}

.btn-primary.btn-block {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-radius: 8px;
    background: var(--primary, #2B7DE9);
    color: #fff;
    font-size: 1.08rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.18s;
}

.btn-primary.btn-block:hover {
    background: var(--primary-dark, #1E5EBB);
}

.login-error {
    width: 100%;
    margin-top: 16px;
    color: var(--danger, #e53e3e);
    background: #ffe5e5;
    border-radius: 6px;
    padding: 8px 0;
    text-align: center;
    font-size: 0.97rem;
    font-weight: 500;
    letter-spacing: 0.2px;
}

/* Responsive: reduce logo y frames en pantallas pequeñas */
@media (max-width: 700px) {
    .login-logo img {
        width: 140px;
        height: 140px;
    }
    .login-card {
        padding: 24px 6vw 24px 6vw;
        min-width: unset;
        max-width: 98vw;
    }
    .login-background-frame .frame {
        border-width: 3px;
    }
}