:root {
    --primary:       #6C63FF;
    --primary-light: #8B85FF;
    --primary-dark:  #5A52D5;
    --bg:            #F4F6FC;
    --card:          #FFFFFF;
    --text:          #2D3748;
    --text-muted:    #718096;
    --border:        #E2E8F0;
    --success:       #48BB78;
    --danger:        #FC8181;
}

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

body {
    font-family: 'Nunito', sans-serif;
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Card principal */
.login-card {
    background: var(--card);
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(108,99,255,0.12),
                0 4px 20px rgba(0,0,0,0.06);
    padding: 48px 44px;
    width: 100%;
    max-width: 420px;
    animation: slideUp 0.5s ease-out;

    /* centrado absoluto en pantalla */
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    height: fit-content;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Logo */
.logo-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 32px;
}

.logo-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    box-shadow: 0 8px 24px rgba(108,99,255,0.35);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 8px 24px rgba(108,99,255,0.35); }
    50%       { box-shadow: 0 8px 32px rgba(108,99,255,0.55); }
}

.logo-icon i {
    font-size: 36px;
    color: #fff;
}

.logo-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
}

.logo-title span {
    color: var(--primary);
}

.logo-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 2px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Formulario */
.form-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

/* clase propia, no usar .input-group porque choca con Bootstrap */
.input-wrap {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
    z-index: 2;
    pointer-events: none;
    transition: color 0.2s;
}

/* espacio para el boton del ojo */
.con-ojo {
    padding-right: 42px;
}

.form-control {
    border: 2px solid var(--border);
    border-radius: 6px;
    padding: 12px 14px 12px 42px;
    font-size: 14px;
    font-family: 'Nunito', sans-serif;
    font-weight: 600;
    color: var(--text);
    background: #FAFBFF;
    transition: all 0.2s ease;
    width: 100%;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(108,99,255,0.12);
}

.form-control:focus + .input-icon,
.input-wrap:focus-within .input-icon {
    color: var(--primary);
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    z-index: 2;
    transition: color 0.2s;
    padding: 4px;
}

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

.form-group { margin-bottom: 20px; }

/* Recordarme */
.remember-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.form-check-input {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    margin-left: 6px;
}

.forgot-link {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.forgot-link:hover { color: var(--primary-dark); }

/* Botón */
.btn-login {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 15px;
    font-weight: 800;
    font-family: 'Nunito', sans-serif;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 6px 20px rgba(108,99,255,0.35);
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(108,99,255,0.45);
}

.btn-login:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(108,99,255,0.3);
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.login-footer p {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
}

.login-footer span {
    color: var(--primary);
    font-weight: 700;
}

/* Alert error */
.alert-login {
    background: #FFF5F5;
    border: 1.5px solid #FC8181;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #C53030;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card { padding: 36px 24px; }
}