/*
    Login - Bárbara Castro style
    Plataforma e-learning
*/

html, body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

:root {
    --bc-teal:       #008b8b;
    --bc-teal-mid:   #31af9d;
    --bc-teal-light: #60d3aa;
    --bc-teal-mint:  #95f7b1;
    --bc-dark:       #012d2d;
}

.bc-login-body {
    margin: 0;
    width: 100vw;
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--bc-dark) 0%, #015050 45%, #017070 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow-x: hidden;
}

/* dots decorativos */
.bc-login-body::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

/* orbes decorativos */
.bc-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(80px);
}

.bc-orb--top {
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(0,139,139,.35) 0%, transparent 70%);
    top: -120px;
    right: -80px;
}

.bc-orb--bottom {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(96,211,170,.20) 0%, transparent 70%);
    bottom: -80px;
    left: -60px;
}

.bc-login-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 460px;
    padding: 1.5rem;
}

.bc-login-card {
    background: rgba(255,255,255,.97);
    border-radius: 20px;
    padding: 2.8rem 2.5rem;
    box-shadow: 0 24px 64px rgba(0,0,0,.35), 0 2px 12px rgba(0,0,0,.12);
}

.bc-login-logo {
    display: block;
    max-width: 200px;
    margin: 0 auto 1.6rem;
}

.bc-login-eyebrow {
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--bc-teal);
    text-align: center;
    margin-bottom: .4rem;
}

.bc-login-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--bc-dark);
    text-align: center;
    margin-bottom: .3rem;
}

.bc-login-subtitle {
    font-size: .875rem;
    color: #6c757d;
    text-align: center;
    margin-bottom: 2rem;
}

.bc-divider {
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--bc-teal), var(--bc-teal-light));
    border-radius: 2px;
    margin: 0 auto 1.8rem;
}

.bc-form-label {
    display: block;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--bc-dark);
    margin-bottom: .4rem;
}

.bc-input-wrap {
    position: relative;
}

.bc-input-wrap .bc-input-icon {
    position: absolute;
    left: .9rem;
    top: 50%;
    transform: translateY(-50%);
    color: #b0b0b0;
    font-size: .9rem;
    pointer-events: none;
}

.bc-input-wrap .form-control {
    padding-left: 2.8rem;
    border: 1.5px solid #e0e0e0;
    border-radius: 10px;
    padding-top: .7rem;
    padding-bottom: .7rem;
    font-size: .9375rem;
    color: #333;
    transition: border-color .2s, box-shadow .2s;
}

.bc-input-wrap .form-control:focus {
    border-color: var(--bc-teal);
    box-shadow: 0 0 0 3px rgba(0,139,139,.12);
    outline: none;
}

.bc-btn {
    display: block;
    width: 100%;
    padding: .8rem 1.5rem;
    border: none;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--bc-teal), var(--bc-teal-mid), var(--bc-teal-light));
    background-size: 200% auto;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: .9375rem;
    font-weight: 700;
    letter-spacing: .04em;
    cursor: pointer;
    transition: background-position .4s ease, box-shadow .2s;
    box-shadow: 0 4px 18px rgba(0,139,139,.35);
}

.bc-btn:hover {
    background-position: right center;
    box-shadow: 0 6px 24px rgba(0,139,139,.45);
    color: #fff;
}

.bc-forgot-link {
    display: block;
    text-align: center;
    margin-top: 1.2rem;
    font-size: .85rem;
    color: #6c757d;
    text-decoration: none;
    transition: color .2s;
}

.bc-forgot-link:hover {
    color: var(--bc-teal);
    text-decoration: none;
}

/* Bootstrap 5 validation dentro de bc-input-wrap */
.was-validated .bc-input-wrap .form-control:invalid,
.bc-input-wrap .form-control.is-invalid {
    border-color: #dc3545;
    padding-right: 2.8rem;
}

.was-validated .bc-input-wrap .form-control:valid,
.bc-input-wrap .form-control.is-valid {
    border-color: var(--bc-teal);
}

.bc-input-wrap .invalid-feedback {
    display: none;
    font-size: .8rem;
    color: #dc3545;
    margin-top: .3rem;
}

.was-validated .bc-input-wrap .form-control:invalid ~ .invalid-feedback,
.bc-input-wrap .form-control.is-invalid ~ .invalid-feedback {
    display: block;
}

.bc-alert-error {
    border-radius: 10px;
    font-size: .875rem;
    border: none;
    background: #fff0f0;
    color: #c0392b;
    padding: .75rem 1rem;
    margin-bottom: 1.2rem;
}

.bc-footer-note {
    text-align: center;
    margin-top: 1.6rem;
    font-size: .75rem;
    color: rgba(255,255,255,.45);
    letter-spacing: .04em;
}

@media (max-width: 480px) {
    .bc-login-card {
        padding: 2rem 1.4rem;
    }
}