:root {
    --primary: #960e53;
    --primary-dark: #7d0b45;
    --gradient: linear-gradient(90deg, #960e53 20%, #dc7f37 96%);
}

/* ===== BASE ===== */
body {
    font-family: 'Montserrat', sans-serif;
    background: #f4f6fa;
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== PARTICLES ===== */
#particles-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* ===== CARD CONTENEDOR ===== */
.login-card {
    width: 100%;
    z-index: 1;
}

/* ===== CARD INTERNO ===== */
.login-wrapper {
    width: 100%;
    border-radius: 1.25rem;
    box-shadow: 0 10px 35px rgba(60, 14, 50, 0.12);
    animation: fadeInUp 0.7s ease;
    background: #fff;
}

/* ===== ESPACIADO RESPONSIVO ===== */
.card-body {
    padding: 1.2rem;
}

@media (min-width: 576px) {
    .card-body {
        padding: 1.8rem;
    }
}

@media (min-width: 768px) {
    .card-body {
        padding: 2.5rem;
    }
}

/* ===== ANCHOS RESPONSIVOS ===== */
@media (min-width: 768px) {
    .login-wrapper {
        max-width: 720px;
    }
}

@media (min-width: 992px) {
    .login-wrapper {
        max-width: 850px;
    }
}

@media (min-width: 1200px) {
    .login-wrapper {
        max-width: 950px;
    }
}

/* ===== LOGO ===== */
.logo-responsive {
    max-width: 120px;
}

@media (min-width: 576px) {
    .logo-responsive {
        max-width: 150px;
    }
}

@media (min-width: 768px) {
    .logo-responsive {
        max-width: 180px;
    }
}

/* ===== TEXTOS ===== */
.title-responsive {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.subtitle-responsive {
    font-size: 0.85rem;
    color: #666;
}

@media (min-width: 768px) {
    .title-responsive {
        font-size: 1.8rem;
    }

    .subtitle-responsive {
        font-size: 1rem;
    }
}

/* ===== INPUTS ===== */

        .input-group-text {
            background: #f8f9fa;
            border: 2px solid #e5e5e5;
            border-right: none;
            border-radius: 16px 0 0 16px;
            color: var(--primary);
        }


.form-control {
    border-left: 0;
    border-radius: 0 2rem 2rem 0;
    padding: 0.6rem 0.9rem;
    font-size: 0.9rem;
}

@media (min-width: 768px) {
    .form-control {
        padding: 0.75rem 1.1rem;
        font-size: 1rem;
    }
}

/* FOCUS */
.form-control:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 0.2rem rgba(150, 14, 83, 0.2) !important;
}

/* ===== BOTÓN ===== */
.btn-login {
    background: var(--gradient);
    color: #fff;
    font-weight: 600;
    border: none;
    border-radius: 2rem;
    padding: 0.65rem;
    width: 100%;
    position: relative;
    overflow: hidden;
    transition: all 0.25s ease;
}

@media (min-width: 768px) {
    .btn-login {
        padding: 0.75rem;
    }
}

.btn-login:hover {
    background: linear-gradient(90deg, #7d0b45 0%, #512b78 100%);
    color: #fff;
    transform: translateY(-1px);
}

/* Shine effect más ligero */
.btn-login::before {
    content: "";
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(120deg,
            rgba(255, 255, 255, 0) 0%,
            rgba(255, 255, 255, 0.3) 50%,
            rgba(255, 255, 255, 0) 100%);
    transform: skewX(-25deg);
    animation: shine 3.5s infinite;
}

/* ===== LINK ===== */
.btn-link-institucional {
    background: transparent;
    color: var(--primary);
    font-weight: 600;
    border: none;
    font-size: 0.9rem;
    transition: all 0.25s ease;
}

.btn-link-institucional:hover {
    color: #dc7f37;
    text-decoration: underline;
}

/* ===== PASSWORD LIST ===== */
#password-requirements-registro {
    font-size: 0.8rem;
}

@media (min-width: 768px) {
    #password-requirements-registro {
        font-size: 0.9rem;
    }
}

/* ===== ANIMACIONES ===== */
@keyframes shine {
    0% { left: -75%; }
    100% { left: 125%; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.login-card {
    width: 100%;
    z-index: 1;
    padding: 1rem;
}
@media (min-width: 576px) {
    .login-card {
        padding: 1.5rem;
    }
}

@media (min-width: 768px) {
    .login-card {
        padding: 2rem;
    }
}

@media (min-width: 1200px) {
    .login-card {
        padding: 3rem;
    }
}

.login-wrapper {
    margin: auto;
}
@media (min-height: 700px) {
    .login-wrapper {
        margin-top: 2rem;
        margin-bottom: 2rem;
    }
}
body {
    padding: 1rem;
}

@media (min-width: 768px) {
    body {
        padding: 2rem;
    }
}