/* FONDO */
.bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background: var(--bg-darker);
}

.bg-blob1 {
    position: absolute;
    top: -150px;
    left: -150px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
}

.bg-blob2 {
    position: absolute;
    bottom: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* NAV */
nav {
    position: relative;
    z-index: 10;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(12px);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--text-primary);
}

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

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.btn-back:hover {
    background: var(--primary-glow);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* WRAPPER */
.wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    position: relative;
    z-index: 1;
}

/* CARD */
.card {
    width: 100%;
    max-width: 420px;
    background: rgba(0,0,0,0.35);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--primary));
}

/* LOGO */
.card-logo {
    text-align: center;
    margin-bottom: 28px;
}

.card-logo .icon {
    font-size: 42px;
    margin-bottom: 6px;
}

.card-logo .name {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--text-primary);
}

.card-logo .name span {
    color: var(--primary-light);
}

.card-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 28px;
}

/* ALERTA */
.alert {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    margin-bottom: 20px;
}

.alert.show {
    display: flex;
}

.alert.error {
    background: rgba(229, 57, 53, 0.12);
    border: 1px solid rgba(229, 57, 53, 0.35);
    color: #ff7070;
}

.alert.success {
    background: rgba(76, 175, 80, 0.12);
    border: 1px solid rgba(76, 175, 80, 0.35);
    color: #69db7c;
}

.alert.info {
    background: var(--primary-glow);
    border: 1px solid var(--border);
    color: var(--primary-light);
}

/* FORM */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.input-wrap {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.875rem;
    pointer-events: none;
    transition: var(--transition);
}

.form-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 14px 12px 42px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    border-color: var(--primary);
    background: var(--primary-glow);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-input:focus ~ .input-icon {
    color: var(--primary);
}

.form-input.has-toggle {
    padding-right: 44px;
}

.form-input.error-field {
    border-color: var(--error);
}

.field-error {
    display: none;
    align-items: center;
    gap: 6px;
    color: #ff7070;
    font-size: 0.75rem;
    margin-top: 6px;
}

.field-error.show {
    display: flex;
}

/* TOGGLE PASSWORD */
.pwd-toggle {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

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

/* FORGOT */
.forgot-wrap {
    text-align: right;
    margin-top: -8px;
    margin-bottom: 24px;
}

.link {
    color: var(--primary-light);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.link:hover {
    color: var(--primary);
    text-decoration: underline;
}

/* BOTÓN */
.btn-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
}

.btn-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px var(--primary-glow);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .spinner {
    display: block;
}

.card-footer {
    text-align: center;
    margin-top: 22px;
    color: var(--text-muted);
    font-size: 0.8125rem;
}

/* MODAL */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(8px);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.open {
    display: flex;
}

.modal {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    max-width: 380px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    color: var(--text-muted);
    font-size: 1.125rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-icon {
    text-align: center;
    font-size: 40px;
    margin-bottom: 12px;
}

.modal-title {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.modal-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    margin-bottom: 24px;
}

/* RESPONSIVE */
@media (max-width: 480px) {
    .card {
        padding: 32px 22px;
    }
}