/* ═══════════════════════════════════════════════════════════════
 * LINKUPHR — LOGIN
 * Pantalla de inicio de sesión, layout split-screen
 * ═══════════════════════════════════════════════════════════════ */

.login-page {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

/* ─── Lado izquierdo: marca y mensaje ─────────────────────── */
.login-brand {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-active) 100%);
    color: var(--color-text-on-dark);
    padding: var(--space-12);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}
.login-brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(255,255,255,.08), transparent 50%);
}
.login-brand-content { position: relative; z-index: 1; }

.login-brand-logo {
    display: flex; align-items: center; gap: var(--space-3);
    margin-bottom: var(--space-8);
}
.login-brand-logo .badge-logo {
    width: 44px; height: 44px;
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 17px;
}
.login-brand-logo .brand-text {
    font-size: 18px; font-weight: 600;
    letter-spacing: -0.2px;
}

.login-brand h1 {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-4);
    color: var(--color-text-on-dark);
    max-width: 420px;
}
.login-brand p {
    font-size: 15px;
    color: rgba(255,255,255,.85);
    line-height: 1.6;
    max-width: 380px;
}

.login-brand-features {
    margin-top: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 380px;
    position: relative; z-index: 1;
}
.login-brand-feature {
    display: flex; align-items: flex-start; gap: var(--space-3);
    font-size: 13px;
    color: rgba(255,255,255,.9);
}
.login-brand-feature svg {
    width: 18px; height: 18px; flex-shrink: 0;
    color: var(--color-primary-soft-2);
    margin-top: 2px;
}

.login-brand-footer {
    position: relative; z-index: 1;
    font-size: 12px;
    color: rgba(255,255,255,.6);
}

/* ─── Lado derecho: formulario ─────────────────────────────── */
.login-form-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    background: var(--color-bg);
    position: relative;
}

.login-form-toggle {
    position: absolute;
    top: var(--space-5);
    right: var(--space-5);
}

.login-form {
    width: 100%;
    max-width: 380px;
}
.login-form h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}
.login-form-subtitle {
    color: var(--color-text-3);
    font-size: 14px;
    margin-bottom: var(--space-8);
}

.login-input-wrap {
    position: relative;
    margin-bottom: var(--space-4);
}
.login-input-wrap .form-input {
    padding-left: 42px;
    height: 44px;
    font-size: 14px;
}
.login-input-wrap svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px; height: 18px;
    color: var(--color-text-3);
    pointer-events: none;
}
.login-input-wrap .toggle-pwd {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px; height: 32px;
    background: transparent;
    border: none;
    color: var(--color-text-3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}
.login-input-wrap .toggle-pwd:hover {
    color: var(--color-primary);
}

.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-5);
    font-size: 13px;
}

.login-submit {
    width: 100%;
    height: 44px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--space-4);
}

.login-error {
    display: none;
    margin-bottom: var(--space-4);
    padding: 12px 14px;
    border-radius: var(--radius-md);
    background: var(--color-danger-bg);
    color: var(--color-danger-text);
    border-left: 3px solid var(--color-danger);
    font-size: 13px;
}
.login-error.shown { display: block; }

.login-help {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
    font-size: 12px;
    color: var(--color-text-3);
}

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
    .login-page {
        grid-template-columns: 1fr;
    }
    .login-brand {
        padding: var(--space-8) var(--space-6);
        min-height: auto;
    }
    .login-brand h1 { font-size: 26px; }
    .login-brand p { font-size: 14px; }
    .login-brand-features { display: none; }
    .login-form-wrap { padding: var(--space-8) var(--space-4); }
}

/* Spinner del botón submit */
.btn-loading { position: relative; pointer-events: none; }
.btn-loading .btn-text { opacity: 0; }
.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px; height: 18px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}